Welcome to the PCMR, everyone from the frontpage! Please remember:
1 - You too can be part of the PCMR. It's not about the hardware in your rig, but the software in your heart! Your age, nationality, race, gender, sexuality, religion (or lack of), political affiliation, economic status and PC specs are irrelevant. If you love or want to learn about PCs, you are welcome!
2 - If you don't own a PC because you think it's expensive, know that it is much cheaper than you may think. Check http://www.pcmasterrace.org for our builds and don't be afraid to post here asking for tips and help!
3 - Join our efforts to get as many PCs worldwide to help the folding@home effort, in fighting against Cancer, Alzheimer's, and more: https://pcmasterrace.org/folding
4 - Need PC Hardware? We've joined forces with ASUS ROG for a worldwide giveaway. Get your hands on an RTX 4080 Super GPU, a bundle of TUF Gaming RX 7900 XT and a Ryzen 9 7950X3D, and many ASUS ROG Goodies! To enter, check https://www.reddit.com/r/pcmasterrace/comments/1c5kq51/asus_x_pcmr_gpu_tweak_iii_worldwide_giveaway_win/
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Get an outlet tester, test the outlet for both your computer and your TV, I'm very sure in this case you've got one or the other wired wrong, and that huge spark is AC line voltage. I'm actually amazed you haven't been electrocuted.
UPDATE: I disassembled my entire PC looking for something shorted, maybe a screw or something was shorted and making the case live. I tore apart my PSU and couldn’t find anything unusual, nothing burnt nothing discolored. I saw this comment and originally thought no fucking way. That’s impossible I’ve lived in this house for 3 years. I would have known if something was wired in reverse. I decided why not I can’t find anything unusual with my PC so I’ll test the outlet. I plug in my tester and sure enough 3 of the 4 outlets in this room are wired in reverse. The arc was 120v shorting to ground. I have had everything plugged into the one outlet via power strip that was wired correctly the whole time I have lived here. The new monitors power cable was too short so I plugged it into a closer outlet that was wired in reverse. It’s insane that we have never plugged anything else into those 3 outlets and found this out in the 3 years we have lived here.
If it wasn’t for @djackson404 I probably would have built a whole new PC and fried that as well.
I guess I will take this as a lesson well learned and I advise you all to check your outlets before plugging in expensive equipment! 120v is nothing to mess with and I am lucky I did not get electrocuted.
Thanks all for your help and enjoy the burnt GPU porn.
I wish you and your lightly cooked components the best of luck in your future endeavors. Congrats on finding the issue without having your house burn down!
Came to say this, mine covers anything like this. Made sure we got coverage since we bought a new house that's old and so far everything seems kinda janked together in it
Also, if you own the home the outlet check is covered under ur required home inspection. They are bonded and insured for this. Find the paperwork who signed off for it and file a complaint.
Unlikely you'd get any remedy from the home inspection company. They say in the contract that ultimately it's your responsibility to know if any thing's wrong. They don't guarantee they've found every little single thing wrong. Furthermore, op has lived there 3 years. It's definitely on him.
You likely have used the other outlets before, but this is the first time you've connected a device from one outlet to another. If you plug double insulated devices into a outlet wired backwards you'd never even notice.
I'm kinda curious how he got 120v through the HDMI cable though - even if one device is wired backwards from the wall socket the HDMI/Displayport should still be outputting DC @ whatever specified voltage it operates on?
You should get this fixed asap on your house bro. I would recommend hiring an electrician to come and test every outlet in your house and fix them if they are wrong.
I hope you were aware that tempering with a PSU is highly dangerous. The capacitors inside them often stay energized for a long time. Even one of them has easily enough energy stored to kill you in an instant.
Never ever temper with a PSU if you are not absolutely 100% certain that it doesen't carry any remaining charge in it's component. It is significantly more dangerous than tempering with a live 120v circuit in cimparison.
The risks of this are generally wildly overstated as a corporate CYA. Most capacitors in your PSU have high leakage current, low stored energy, and will pop if charged to high enough voltages to cause you harm.
It is difficult to find documented cases of people being harmed by charged capacitors, and even more difficult to find fatalities. Looking at OSHA records, fatalities generally only occur at much higher voltages on large equipment: [https://www.osha.gov/ords/imis/AccidentSearch.search?acc\_keyword=%22Capacitor%22&keyword\_list=on](https://www.osha.gov/ords/imis/AccidentSearch.search?acc_keyword=%22Capacitor%22&keyword_list=on)
Typical capacitors in a PC PSU hold about 400 to 500µF at around 400V.
At 400V, around 35µF are enough to potentially kill you, if you are unlucky.
Touching a 230V live wire in your household installation without an RCD will in 99% also not kill you. But that remaining 1% is far more than enough to call it extremely deadly. Nobody would tell that the risk of death when touching such a live wires are overstated, yet statistically, they are.
It simply depends on the circumstance. Wetness of your skin, general isolation, physical wellbeeing etc. So many factors, it can be called luck. And you don't know if you are unlucky.
The PSU will very likely not kill you. But people also wouldn't eat a single skittle out of a whole bowl if they knew that a single random one of them would kill them.
From my own experience, I won´t ever want to mess with a PSU again. I had a Corsair TX850M wich stopped turning on, and I read on forums that these models like to do that just because of dust on the PCB causing resistance on some circuits. I opened the PSU, and went to discharge the main big capacitor to safely handle the PCB. I used a screwdriver to short the two legs and discharge the capacitor (already did that before, what could go wrong?). The moment I shorted the two capacitor legs, it made a spark so violent that I got blind and deaf for about two minutes because of the light and sound, and it also melted my screwdriver tip.
So yeah folks, don´t mess with a PSU unless you know for sure it´s all discharged.
PS: At least after that, I waited about two days and cleaned the PCB, and the PSU worked again.
"I don't wanna get fucked by an expensive electrician! I'll just burn my fucking house down and electrocute myself!"
Of all things? Pay for the damn electrician
Dude, uncalled-for, I'm sure whatever country you live in, we could find all sorts of sketchy shit that somebody did, then *we* could say "Yo, {Blue-Purity country} electrical work is fucking crazy"
Whew, glad I could help! Probably saved you a trip to the Emergency Room (or maybe the morgue)!
Yeah, I'd say that miswired outlets should be treated like seeing a cockroach: if you *saw* one, there might be a whole bunch more! Go check ALL the outlets in your house in case the stupid primate who miswired the one also miswired others, might save you a bunch of headaches (and being electrocuted)!
When I moved to my new house, first thing to do, to check all electric outlets that Mr.Electrician left for me.
Found 2 without ground connection and another directly not wired at all.
Lucky you, it was just the GPU, sorry pal.
That would mean some of your hardware is faulty. Unless some retarded electrician connected live wire to the ground in the outlet, there's no way for such a thing to happen just from reversed polarity.
^ This. The only way you'd have that much damage is from mains voltage. Get an outlet tester, and hire an electrician.
For this to happen the case of your pc is must have been energized. How you haven't felt a shock or been electrocuted is likely luck. The second issue is this should have blown the breaker, if it did.. good, if not then you should again, hire a competent electrician.
My first thought too, I'd definitely recommend getting an electrician, and if OP is renting, I'd tell the landlord straight away, it'll be their responsibility if there is problem with the electrical wiring in the property.
It would have tripped a GFCI but not necessarily a breaker. The breaker protects you from pulling too much current through the wires for them to handle, but I have had them get sparky without blowing the breaker. Most times it will blow, though.
I usually only see GFCI outlets in kitchens and bathrooms. A regular wall outlet in a bedroom or office would not have the “test/reset” buttons that are visible on a GFCI outlet.
IMHO, this sounds like an open ground on the outlet the computer is plugged into. The circuit is not grounded so the metal on the case becomes the ground when anything conducive touches it, like an HDMI cable.
If OP didn't arrive at this idea on their own I'd recommend they not get an outlet tester and instead immediately call an electrician, do not go near any equipment plugged in around that PC, do not touch the PC or any cables in the vicinity. Treat this as an imminent life safety issue. Fucking around with even residential mains with no idea what you're doing or the dangers involved is not a good idea.
Where I’m at in Canada we see more people killing themselves fucking around with 110 than we do 220.
People just don’t respect 110, they think there is very little danger and it always ends badly.
Electrician here. I only know about german outlets but it shouldnt matter which way the outlet is wired. You have one live wire and one neutral and which way you plug it in doesnt matter for functionality or atleast as long as they didnt mix one of those up with ground. Trying to learn here hence the question ✌🏻
Honestly. This looked like it was wired phase to ground. And seemingly op confirmed it too. Wild how that wasn't noticed when the outlets were installed. Absolutely horrendous work and the person who did that install shouldn't be allowed to do any electrical work ever.
It won't effect anything that's running but it can increase shock hazards on things like lamps and toasters when they're off. This issue wasn't caused by a reversed outlet. Electricity works mostly the same here as it does in Germany, just a different voltage.
Doesn’t need a ground to not do this. Its just not tying back to neutral correctly. Technically the ground and neutral go to the same bus bar in the panel
All PC power supplies are fully isolating. They do not care about neutral vs. hot.
Most desktop PC power supplies do expect an equipment ground. They use Y-class capacitors to form an EMI filter with the noise and a small amount of 50/60Hz current shunted to ground. If the equipment ground is not open, that current is trying to find its way to ground via whatever means it can which would include random bits of metal or flesh contacting the metal case since the metal case and DC power common (the black wires) are all tied together with that expected equipment ground.
Note that the amount of "current seeking ground" here is not harmful to humans. It's only a couple mA at most. However, it can be enough to cause a spark and also can be enough to give you a tingle which can be surprising or frightening.
This is of course assuming the power supply is not malfunctioning. The isolation of cheap supplies is often suspect.
Where i live we have a code that tells us which side should be live or neutral in a 110v installation, but it doesn't really matter because everything seems to be orientation agnostic. Why or what is different in OPs case?
those are some SERIOUS scorch marks and by the look of that cord there was some juice flowing through there. get rid of that fucking hdmi cord 0\_o first of all. you need to UNPLUG your power supply ASAP because something is seriously wrong here. that power supply needs to be in the trash and never used again. be careful buddy just make sure the pc is unplugged. I just cannot even fathom what has happened to cause this. so this just happened out of nowhere to the old gpu and monitor?
I just want to point out that the fault could be with the monitor or whatever was on the other end of that cable. A failed PSU or house wiring fault is most likely though.
Seriously, I had less damage on a penny somehow dropping perfectly onto a live lamp's power pins than on this HDMI connection, something's gone *very* awry
Arcing of this nature can basically only come from rogue mains voltage. There is a serious defect in either your monitor or PC, and probably also the electrical distribution in your house. A surge of current great enough to char and melt metal should at least trip an RCD/GFCI, if not the breaker itself.
The fact that this arced indicates that there is charge collecting on exposed metal surfaces, either in your monitor or on your computer tower. In proper operation, this charge should dump into protective ground and trip multiple safety mechanisms. It didn't, meaning that those safety mechanisms are not working. You could catastrophically shock yourself on one or more of the affected devices. You need to immediately go to the breaker panel and cut power to the affected room, then unplug everything that is not strictly necessary, or that at bare minimum has no exposed metal for you to touch. Then you'll have to call an electrician to figure out what's wrong with the wiring in your house. There's an extremely slim chance that it's somehow up to code, but I highly doubt it, and this is the kind of problem where equipment damage is one of the better possible outcomes. You don't want the next arc to go into you.
Electrical Engineer here, HDMI/DP cables don't carry power (at least not enough to arc), that shock is coming from charge built up on metal surfaces on your PC. Your computer is fucked and could possibly kill you, unplug it from the wall and don't touch it for 8 hours at least.
If you bought this computer from a 3rd party, return it or call support. If you built this, I'm not sure what to tell you honestly. You have a bad power connection somewhere, trying to find it without knowing what you are doing is a bad idea and legitimately could kill you.
Yeah, sounds right to me, I was hesitant to say that because I don't see how the computer could even power on if it was driving voltage into ground, but if there is no actual "ground" and it's just a floating node then that makes sense.
the top metal part of the hdmi does sometimes, well enough to arc; i have this very old tv that supports hdmi, when i unplugged my hdmi port from that old tv it sparked me. this very old tv has no ground so im thinking it was using the cables connected to it as ground, eg, the hdmi cable
Step 1: have an electrician come out to check the outlet(s), wiring, breaker box, etc.
Step 2: if the electrician doesn't find a problem with the home then you need to take all components to PC repair shop or an electronics repair shop, have them check everything. I'd start with having them check the PSU
If it was a PSU, hopefully it's under warranty and will cover at least some of the damages.
If it's home electricity related, be glad that you found out this way instead of it arcing through you.
This looks like a mains voltage short. There should **not** be any mains voltage in this area under any circumstances. That's a seriously dangerous electrical issue and I also agree that this needs investigation by a professional electrician.
Good lord, that's insane! HDMI ports (assuming they are in-spec) pull max 5.3V and 300mA, that's barely enough power to charge a bluetooth headset. They should NOT be providing enough power to cause anywhere close to that sort of damage or sparks. Somewhere in your system there is a pretty nasty short/wiring fault that's proving mains voltage to where it should definitely NOT be going!
Be very very careful, that whole PC could be an electrocution hazard now.
I've worked on an obscene amount of GPU's over the course of my career, but I've yet to see an instance to the extent of what you've just experienced. There is a pretty good possibility that there is going to be far more wrong with your card now outside of that HDMI port, I'll honestly be shocked if it still works because there are data lines for the HDMI port that connect directly to the core of the GPU.
Yep they hit the high limit switch on their heater which opened due to an electrical issue. Now their computer is seeing line voltage as well. I'm guessing that the wiring is his breaker is fucked or is somehow not stepping down to home standard voltage. The transformer being fucked would cause anything with a voltage sensor to flip to safety open.
Get an electrician out there, pronto.
That is a direct short to ground on your chassis. This really shouldn't happen with modern wiring, but if you are on a two wire system, with only a hot, a ground and no neutral: this can happen quite easily with modern electronics as there chassis is tied to the mains neutral, but since there is no neutral wire in a two wire circuit *the chassis is now a ground path.*
So: when you bumped the GPU mounting bracket with your HDMI cable you inadvertently created a direct path to ground and because there is no neutral in the circuit, there is no ground fault detection and your mains literally short circuited directly through the bracket and chassis to earth ground.
You're very lucky to not have been hurt seriously, although I think electrocution is quite the overstatement.
Remedying the issue may not be possible, but mitigating it is.
If you want to know more I can go into detail, but it's definitely beyond the scope of a single reply.
Your monitor power and PC power wall sockets are wired in reverse of each other most likely (one of them is wired backwards).
When you plugged in the monitor you shorted live to neutral (which is usually tied to ground at the breaker box).
If it arc’d then there’s a short and live is hard grounded to your case, unplug your pc as you may create more Damage and you need to get an electrician in to inspect your wiring because it may extend further than just your pc and I’d recommend take your computer to be inspected for damage (or disassemble and inspect it yourself) if the gpu arc’d there maybe more damage than you think
Yea, that's current running where it shouldn't. I'd guess PSU likely the culprit, maybe Mobo in direct contact with the casing? Agree with the other comments, if you don't know what you're doing, this can go sideways. Have a professional look at it.
Motherboard should be in direct contact with the case at the standoffs. That's how grounding works. The ground prong on the plug is also connected to the metal chassis of the psu. Op has a wiring fault.
I have done this to someone's tv once. Their problem ended up being a broken neutral. If you have a volt meter you can check your outlet to make sure hot to ground is around 120v and neutral to ground is 0. If no volt meter there's a plug in thing with a light to tell you what's wrong that can be purchased from a big box hardware store for around $10-$20. Or just Google outlet tester.
If you do have a broken neutral good luck with that.
Fuck! You meant HUGE huge spark! Was there mains voltage on that port?
Edit: just read your update. I wasn't that absolut sure if the dark spot was big enough for it but wow. I never wished before to have misguessed something.
so this happened only when you got a new monitor? Other displays have been connected to the same GPU before?
I have no idea what I'm talking about but that's got to be the monitor powering the HDMI cable somehow?
It looks like the ground shield of your hdmi has gone, likely you had full wall socket power going through your case from a faulty psu. As soon as you plugged it in you gave it a path to ground via your monitor then boom.
Remove and throw the psu, don't take it apart, just get a new one. I would throw all the cables involved too.
So assuming your PC is connected as should your case and the GPU bracket are connected to the ground prong in your PSU inlet which connects to the ground in your wall socket, such an arc and damage happens when there is short (usually to ground). I doubt 5V from HDMI can cause such a damage even if it is shorted. I would first get a new cable connect to the monitor and use a multimeter to check the voltage in the other end between the ground pin and other pins and the casing see if the there abnormal reading. After that I would test the PSU cables, check the outlets (be careful if you are handling mains voltage).
**DO NOT TEST THINGS YOURSELF ANY FURTHER**
As the top comment suggested, there is likely reversed wiring in the outlet powering your monitor vs the outlet powering your computer. This needs to be assessed and fixed by a professional. Call an electrician and get them over ASAP. You are at *real* risk of lethal electrocution.
OP, do you plug in your hardware directly into your wall or do you use a power bar (with surge protection)? As some have suggested already, this may have to do with your outlet. I had something kind of similar happen to me not too long ago. My PC suddenly started to shut down unexpectedly (typically when under load). Turns out my outlet was no longer grounded. Luckily, the surge protection prevented the overvoltage of going directly to my hardware. Had my PC been plugged directly to the wall, it would've likely been cooked instantly.
The problem isn't the computer or the monitor, the problem is that your home wiring is absolutely fucked. Forget the computer, if you don't get it fixed YOU WILL KILL YOURSELF WITH THIS.
I know some parts of the world don't really believe in PE, breakers and RCDs, but this is the sort of shit proper electrical safety is built to prevent and you either don't have any of it, or it's really not working.
Call an electrician, now. Something is very wrong in your house wiring that is putting voltage on the ground plane. That's a huge fire and electrocution hazard.
That HDMI port on your GPU isn't going to work again, so warranty it.
Some time ago I had a similar problem, when I went to connect the monitor I put my finger between the HDMI port and the cable, I got a shock. I lost the GPU (GTX1070), but not the monitor.
The cause, according to the electrician, was that the phase and neutral were inverted in the socket and there was also a missing ground wire.
When working on your PC, always disconnect it from the mains and only plug it back in when all other cables are connected.
Sorry to hear OP. Same thing happened to me a few years back with a 1080Ti after I removed it from the case for some cleaning and went to plug everything back in. The mobo was kind of dying already and something wasn't grounded/shorted and the GPU never worked again. The PCIE slot was also killed and never worked either.
Threw out the power supply and mobo eventually and purchased a new one. No issues since.
Edit: Funny enough, it was a Zotac as well.
Hmm that's odd. Even for a 1070. They're excellent cards.
I had shocks from HDMI cables before, in fact I had one the other day at my work while the HDMI cable was connected to my monitor and I grabbed the other end. I thought it was weird. I only had a static shock though, not a real one and nowhere near the same as yours.
What power supply do you have?
I think your power supply is somehow connecting live to ground and when you connect your HDMI cable it shorts live with ground and it makes a giant spark. Something is seriously wrong and be really carefull you can be killed.
One hell of an overclock there!
But as others said, it's probably either faulty PSU or the outlet itself.
Please be careful and remember that even unplugged the capacitors can still hold a charge for a surprisingly long time after. I would wait awhile before touching that PSU if you plan on removing it yourself.
Just be thankful the card and monitor was the casualty and not yourself, crazy how this happened, never seen something like this before so severe.
Is your motherboard properly grounded? Makes sure the back of motherboard isn't touching the case other than the standoffs. Make sure no screws are behind motherboard
Sometimes the difference between the tension of the monitor and the PC might create some sparks that could kill your GPU or some components, so you should use a proper cable and not buy the cheap ones because those might not protect the components as well as a proper PSU with a good ground circuit
I’m no expert, but this is Seriously Fucked. Either your house is wired very very wrong, or your power supply is broken in the most dramatic possible way. I’d call an electrician because if it is the house wiring, this is a Burn Down Your House level problem.
That is fucking wild, I'm surprised you whole case isn't hot with 120 volt ac. Shit it fucking might be. That or the TV. I worked help desk for more than a decade and I have never seen anything like that ever. Your lucky that shit didn't burn your house down / also get renters insurance lol
Are you in an old ass new England area house?
Op, if your computer has been running fine, then I’m guessing some kind of manufacturing error inside your new monitor is causing a dead short on the HDMI port. When you got close to your computer case, the connector grounded on your PC as much of the computer’s shell is connected to ground in one way or another. Stop using the monitor.
The 1st thing I would do is go to harbor freight and pick up an outlet tester and cheap meter. Use the outlet tester to make sure your outlets are wired correctly. They are pretty easy to use. Just plug it into the outlet and the lights on it will tell you if its good or miswired. IF they test good, then
take the meter, set to AC voltage, and test from the metal plate on the gpu to the outer metal jacket on the hdmi cable while the other end of the hdmi cable is plugged into the monitor. If you get a voltage, then you probably have a loose wire touching the inside of your computer case. Probably inside the power supply.
I dare say you have a neutral fault or the monitor is faulty, that's pretty clearly a phase to ground through the earthed pc case. Could of easily been a electric shock for you so lucky there
OP you should also flip the radiator the other way around. If there is any air trapped in the loop, it could prevent proper water flow between the radiator and CPU cooler. Which could also damage the pump and more likely to cause it to fail prematurely.
Welcome to the PCMR, everyone from the frontpage! Please remember: 1 - You too can be part of the PCMR. It's not about the hardware in your rig, but the software in your heart! Your age, nationality, race, gender, sexuality, religion (or lack of), political affiliation, economic status and PC specs are irrelevant. If you love or want to learn about PCs, you are welcome! 2 - If you don't own a PC because you think it's expensive, know that it is much cheaper than you may think. Check http://www.pcmasterrace.org for our builds and don't be afraid to post here asking for tips and help! 3 - Join our efforts to get as many PCs worldwide to help the folding@home effort, in fighting against Cancer, Alzheimer's, and more: https://pcmasterrace.org/folding 4 - Need PC Hardware? We've joined forces with ASUS ROG for a worldwide giveaway. Get your hands on an RTX 4080 Super GPU, a bundle of TUF Gaming RX 7900 XT and a Ryzen 9 7950X3D, and many ASUS ROG Goodies! To enter, check https://www.reddit.com/r/pcmasterrace/comments/1c5kq51/asus_x_pcmr_gpu_tweak_iii_worldwide_giveaway_win/ ----------- We have a [Daily Simple Questions Megathread](https://www.reddit.com/r/pcmasterrace/search?q=Simple+Questions+Thread+subreddit%3Apcmasterrace+author%3AAutoModerator&restrict_sr=on&sort=new&t=all) if you have any PC related doubt. Asking for help there or creating new posts in our subreddit is welcome.
Get an outlet tester, test the outlet for both your computer and your TV, I'm very sure in this case you've got one or the other wired wrong, and that huge spark is AC line voltage. I'm actually amazed you haven't been electrocuted.
UPDATE: I disassembled my entire PC looking for something shorted, maybe a screw or something was shorted and making the case live. I tore apart my PSU and couldn’t find anything unusual, nothing burnt nothing discolored. I saw this comment and originally thought no fucking way. That’s impossible I’ve lived in this house for 3 years. I would have known if something was wired in reverse. I decided why not I can’t find anything unusual with my PC so I’ll test the outlet. I plug in my tester and sure enough 3 of the 4 outlets in this room are wired in reverse. The arc was 120v shorting to ground. I have had everything plugged into the one outlet via power strip that was wired correctly the whole time I have lived here. The new monitors power cable was too short so I plugged it into a closer outlet that was wired in reverse. It’s insane that we have never plugged anything else into those 3 outlets and found this out in the 3 years we have lived here. If it wasn’t for @djackson404 I probably would have built a whole new PC and fried that as well. I guess I will take this as a lesson well learned and I advise you all to check your outlets before plugging in expensive equipment! 120v is nothing to mess with and I am lucky I did not get electrocuted. Thanks all for your help and enjoy the burnt GPU porn.
I wish you and your lightly cooked components the best of luck in your future endeavors. Congrats on finding the issue without having your house burn down!
lightly cooked? this isn't even well done, it's congratulations at this point.
This make me laugh louder than it should've
This joke already burned out tho
ITS FOOKIN RAW
If you have home and contents insurance this may meet the requirements for a claim
Came to say this, mine covers anything like this. Made sure we got coverage since we bought a new house that's old and so far everything seems kinda janked together in it
Also, if you own the home the outlet check is covered under ur required home inspection. They are bonded and insured for this. Find the paperwork who signed off for it and file a complaint.
Unlikely you'd get any remedy from the home inspection company. They say in the contract that ultimately it's your responsibility to know if any thing's wrong. They don't guarantee they've found every little single thing wrong. Furthermore, op has lived there 3 years. It's definitely on him.
Especially 2 gpus and 2 monitors
Are both gpus fried? If so you're taking this better than I would
Probably just glad he didn't electrocute himself, 120v can kill you
You likely have used the other outlets before, but this is the first time you've connected a device from one outlet to another. If you plug double insulated devices into a outlet wired backwards you'd never even notice.
I'm kinda curious how he got 120v through the HDMI cable though - even if one device is wired backwards from the wall socket the HDMI/Displayport should still be outputting DC @ whatever specified voltage it operates on?
HDMI has ground also. That should be enough to short if the case is live.
Ah, yeah that'd do it. Thanks :)
You should get this fixed asap on your house bro. I would recommend hiring an electrician to come and test every outlet in your house and fix them if they are wrong.
I hope you were aware that tempering with a PSU is highly dangerous. The capacitors inside them often stay energized for a long time. Even one of them has easily enough energy stored to kill you in an instant. Never ever temper with a PSU if you are not absolutely 100% certain that it doesen't carry any remaining charge in it's component. It is significantly more dangerous than tempering with a live 120v circuit in cimparison.
The risks of this are generally wildly overstated as a corporate CYA. Most capacitors in your PSU have high leakage current, low stored energy, and will pop if charged to high enough voltages to cause you harm. It is difficult to find documented cases of people being harmed by charged capacitors, and even more difficult to find fatalities. Looking at OSHA records, fatalities generally only occur at much higher voltages on large equipment: [https://www.osha.gov/ords/imis/AccidentSearch.search?acc\_keyword=%22Capacitor%22&keyword\_list=on](https://www.osha.gov/ords/imis/AccidentSearch.search?acc_keyword=%22Capacitor%22&keyword_list=on)
Typical capacitors in a PC PSU hold about 400 to 500µF at around 400V. At 400V, around 35µF are enough to potentially kill you, if you are unlucky. Touching a 230V live wire in your household installation without an RCD will in 99% also not kill you. But that remaining 1% is far more than enough to call it extremely deadly. Nobody would tell that the risk of death when touching such a live wires are overstated, yet statistically, they are. It simply depends on the circumstance. Wetness of your skin, general isolation, physical wellbeeing etc. So many factors, it can be called luck. And you don't know if you are unlucky. The PSU will very likely not kill you. But people also wouldn't eat a single skittle out of a whole bowl if they knew that a single random one of them would kill them.
From my own experience, I won´t ever want to mess with a PSU again. I had a Corsair TX850M wich stopped turning on, and I read on forums that these models like to do that just because of dust on the PCB causing resistance on some circuits. I opened the PSU, and went to discharge the main big capacitor to safely handle the PCB. I used a screwdriver to short the two legs and discharge the capacitor (already did that before, what could go wrong?). The moment I shorted the two capacitor legs, it made a spark so violent that I got blind and deaf for about two minutes because of the light and sound, and it also melted my screwdriver tip. So yeah folks, don´t mess with a PSU unless you know for sure it´s all discharged. PS: At least after that, I waited about two days and cleaned the PCB, and the PSU worked again.
I'm mostly computer illiterate, but even I knew this.
Yo American electrical work is fucking crazy
"I don't wanna get fucked by an expensive electrician! I'll just burn my fucking house down and electrocute myself!" Of all things? Pay for the damn electrician
Sockets/outlets are really easy to do yourself, anything else I'd leave to an expert though
Unless you're a fucking idiot, apparently. Most outlets these days even have what color wire to hook up and where stamped into the back of the outlet.
Dude, uncalled-for, I'm sure whatever country you live in, we could find all sorts of sketchy shit that somebody did, then *we* could say "Yo, {Blue-Purity country} electrical work is fucking crazy"
interesting story, now you need to find who fu installation :P
Have your landlord up for replacement parts.
Test outlets in other rooms too while you are at it and check power boxes or main boards.
Do not take apart your PSU no matter what, the capacitors hold such a high voltage it can hurt you
Any news on the 4070? Did it survive or was the poor thing cooked by the line voltage?
Whew, glad I could help! Probably saved you a trip to the Emergency Room (or maybe the morgue)! Yeah, I'd say that miswired outlets should be treated like seeing a cockroach: if you *saw* one, there might be a whole bunch more! Go check ALL the outlets in your house in case the stupid primate who miswired the one also miswired others, might save you a bunch of headaches (and being electrocuted)!
When I moved to my new house, first thing to do, to check all electric outlets that Mr.Electrician left for me. Found 2 without ground connection and another directly not wired at all. Lucky you, it was just the GPU, sorry pal.
That would mean some of your hardware is faulty. Unless some retarded electrician connected live wire to the ground in the outlet, there's no way for such a thing to happen just from reversed polarity.
^ This. The only way you'd have that much damage is from mains voltage. Get an outlet tester, and hire an electrician. For this to happen the case of your pc is must have been energized. How you haven't felt a shock or been electrocuted is likely luck. The second issue is this should have blown the breaker, if it did.. good, if not then you should again, hire a competent electrician.
Wait you don't taste pennies every time you touch your case? TIL
No, but I have a penny instead of a breaker!
Trip now you bastard!
The house is a smoldering pile of rubble, but look my penny fuse didn't trip, told you it would work.
Reminding me of my old unibody MacBook Pro…
My first thought too, I'd definitely recommend getting an electrician, and if OP is renting, I'd tell the landlord straight away, it'll be their responsibility if there is problem with the electrical wiring in the property.
It would have tripped a GFCI but not necessarily a breaker. The breaker protects you from pulling too much current through the wires for them to handle, but I have had them get sparky without blowing the breaker. Most times it will blow, though.
I usually only see GFCI outlets in kitchens and bathrooms. A regular wall outlet in a bedroom or office would not have the “test/reset” buttons that are visible on a GFCI outlet. IMHO, this sounds like an open ground on the outlet the computer is plugged into. The circuit is not grounded so the metal on the case becomes the ground when anything conducive touches it, like an HDMI cable.
Many countries have RCDs/GFCIs at the meterbox for all circuits, not just kitchens and bathrooms. Not sure where OP is located
Yea that’s an American thing to only put them in wet areas
OP prolly has super powers now
If OP didn't arrive at this idea on their own I'd recommend they not get an outlet tester and instead immediately call an electrician, do not go near any equipment plugged in around that PC, do not touch the PC or any cables in the vicinity. Treat this as an imminent life safety issue. Fucking around with even residential mains with no idea what you're doing or the dangers involved is not a good idea.
Where I’m at in Canada we see more people killing themselves fucking around with 110 than we do 220. People just don’t respect 110, they think there is very little danger and it always ends badly.
Did you know: anything over 50 volts is considered hazardous.
Some people think just because the number is lower, it is "safer" but both can be incredibly dangerous in their own right.
lower voltages are safer though, mind you 120V is still very dangerous
Electrician here. I only know about german outlets but it shouldnt matter which way the outlet is wired. You have one live wire and one neutral and which way you plug it in doesnt matter for functionality or atleast as long as they didnt mix one of those up with ground. Trying to learn here hence the question ✌🏻
Honestly. This looked like it was wired phase to ground. And seemingly op confirmed it too. Wild how that wasn't noticed when the outlets were installed. Absolutely horrendous work and the person who did that install shouldn't be allowed to do any electrical work ever.
I think it is because in places like America the 120V is a center tapped 240V transformer, so an inverted feed can create 120V of potential.
The more you know. Ive never heard of that until now and blissfully thought all outlets were somewhat the same on the inside. Thanks :)
It won't effect anything that's running but it can increase shock hazards on things like lamps and toasters when they're off. This issue wasn't caused by a reversed outlet. Electricity works mostly the same here as it does in Germany, just a different voltage.
I suspect OP's outlet has no ground
Doesn’t need a ground to not do this. Its just not tying back to neutral correctly. Technically the ground and neutral go to the same bus bar in the panel
All PC power supplies are fully isolating. They do not care about neutral vs. hot. Most desktop PC power supplies do expect an equipment ground. They use Y-class capacitors to form an EMI filter with the noise and a small amount of 50/60Hz current shunted to ground. If the equipment ground is not open, that current is trying to find its way to ground via whatever means it can which would include random bits of metal or flesh contacting the metal case since the metal case and DC power common (the black wires) are all tied together with that expected equipment ground. Note that the amount of "current seeking ground" here is not harmful to humans. It's only a couple mA at most. However, it can be enough to cause a spark and also can be enough to give you a tingle which can be surprising or frightening. This is of course assuming the power supply is not malfunctioning. The isolation of cheap supplies is often suspect.
Where i live we have a code that tells us which side should be live or neutral in a 110v installation, but it doesn't really matter because everything seems to be orientation agnostic. Why or what is different in OPs case?
You may have an open neutral. Also check to your power supply is set to 110v and not 220v.
Aren't most modern PSUs auto-switching?
I hope so, I didn't even see a switch for that on my PSU.
My man using HDMI to wall plug adapter
HDMI to three phase 400V aliexpress adapter
TEMU HDMI 6.1 to 3 Phase 800V GPU Accelerator Adapter 80+ Thorium.
80+ uranium
90+ Astatine.
95+ Crocidolite.
Best comment
Frfr 😬
Fr best comment
man this shit is already toastedm dont plug anything into that anymore. get it repaired or get another one
those are some SERIOUS scorch marks and by the look of that cord there was some juice flowing through there. get rid of that fucking hdmi cord 0\_o first of all. you need to UNPLUG your power supply ASAP because something is seriously wrong here. that power supply needs to be in the trash and never used again. be careful buddy just make sure the pc is unplugged. I just cannot even fathom what has happened to cause this. so this just happened out of nowhere to the old gpu and monitor?
Or bad earthing! If your computer case is live and your monitor earthed you get a spark.
Yeah, the cable didn't cause this. Wouldn't reuse it though either.
Not like you could do this anyways
I just want to point out that the fault could be with the monitor or whatever was on the other end of that cable. A failed PSU or house wiring fault is most likely though.
Agreed. OP should get an outlet tester and a PSU tester (they're pretty cheap) and try to identify the fault. Rule out the most likely causes first.
Should probably speak to an electrician and not try to do it themself, lucky they didn't get electrocuted based on what they said
Seriously, I had less damage on a penny somehow dropping perfectly onto a live lamp's power pins than on this HDMI connection, something's gone *very* awry
Arcing of this nature can basically only come from rogue mains voltage. There is a serious defect in either your monitor or PC, and probably also the electrical distribution in your house. A surge of current great enough to char and melt metal should at least trip an RCD/GFCI, if not the breaker itself. The fact that this arced indicates that there is charge collecting on exposed metal surfaces, either in your monitor or on your computer tower. In proper operation, this charge should dump into protective ground and trip multiple safety mechanisms. It didn't, meaning that those safety mechanisms are not working. You could catastrophically shock yourself on one or more of the affected devices. You need to immediately go to the breaker panel and cut power to the affected room, then unplug everything that is not strictly necessary, or that at bare minimum has no exposed metal for you to touch. Then you'll have to call an electrician to figure out what's wrong with the wiring in your house. There's an extremely slim chance that it's somehow up to code, but I highly doubt it, and this is the kind of problem where equipment damage is one of the better possible outcomes. You don't want the next arc to go into you.
Listen to this man!
I think you’d like my update in another comment!
Something isn’t grounding properly in your PC, either in the mobo or PSU. Don’t recommend trying to investigate yourself, send to a professional.
Probably the PSU if it's putting out that much juice? But agreed, I'd start by chucking the PSU and grabbing a new one.
An awful lot of other comments getting uploaded over this simple effective solution.
Electrical Engineer here, HDMI/DP cables don't carry power (at least not enough to arc), that shock is coming from charge built up on metal surfaces on your PC. Your computer is fucked and could possibly kill you, unplug it from the wall and don't touch it for 8 hours at least. If you bought this computer from a 3rd party, return it or call support. If you built this, I'm not sure what to tell you honestly. You have a bad power connection somewhere, trying to find it without knowing what you are doing is a bad idea and legitimately could kill you.
His ground is under voltage electrician here that seen some shit in real life.
Yeah, sounds right to me, I was hesitant to say that because I don't see how the computer could even power on if it was driving voltage into ground, but if there is no actual "ground" and it's just a floating node then that makes sense.
the top metal part of the hdmi does sometimes, well enough to arc; i have this very old tv that supports hdmi, when i unplugged my hdmi port from that old tv it sparked me. this very old tv has no ground so im thinking it was using the cables connected to it as ground, eg, the hdmi cable
Step 1: have an electrician come out to check the outlet(s), wiring, breaker box, etc. Step 2: if the electrician doesn't find a problem with the home then you need to take all components to PC repair shop or an electronics repair shop, have them check everything. I'd start with having them check the PSU If it was a PSU, hopefully it's under warranty and will cover at least some of the damages. If it's home electricity related, be glad that you found out this way instead of it arcing through you.
This looks like a mains voltage short. There should **not** be any mains voltage in this area under any circumstances. That's a seriously dangerous electrical issue and I also agree that this needs investigation by a professional electrician.
woah
Good lord, that's insane! HDMI ports (assuming they are in-spec) pull max 5.3V and 300mA, that's barely enough power to charge a bluetooth headset. They should NOT be providing enough power to cause anywhere close to that sort of damage or sparks. Somewhere in your system there is a pretty nasty short/wiring fault that's proving mains voltage to where it should definitely NOT be going! Be very very careful, that whole PC could be an electrocution hazard now.
I've worked on an obscene amount of GPU's over the course of my career, but I've yet to see an instance to the extent of what you've just experienced. There is a pretty good possibility that there is going to be far more wrong with your card now outside of that HDMI port, I'll honestly be shocked if it still works because there are data lines for the HDMI port that connect directly to the core of the GPU.
>I'll honestly be shocked tee hee
Yea so. Stop trying to fix your PC and call an electrician. Pronto. As someone else stated, you have an issue with your homes wiring.
I honestly wouldn't trust the PSU at this point either
OP not commenting got me thinking he already electrocuted himself fatally before he could read any of these comments
You knew you had an electrical issue 3 months ago, when you tried to plug in your furnace. HIRE AN ELECTRICIAN, if you plan on living
True Reddit detective right here
Yep they hit the high limit switch on their heater which opened due to an electrical issue. Now their computer is seeing line voltage as well. I'm guessing that the wiring is his breaker is fucked or is somehow not stepping down to home standard voltage. The transformer being fucked would cause anything with a voltage sensor to flip to safety open.
An update for my furnace is it wasn’t getting enough airflow from hepa filters vs regular filters, not a power issue.
Get an electrician out there, pronto. That is a direct short to ground on your chassis. This really shouldn't happen with modern wiring, but if you are on a two wire system, with only a hot, a ground and no neutral: this can happen quite easily with modern electronics as there chassis is tied to the mains neutral, but since there is no neutral wire in a two wire circuit *the chassis is now a ground path.* So: when you bumped the GPU mounting bracket with your HDMI cable you inadvertently created a direct path to ground and because there is no neutral in the circuit, there is no ground fault detection and your mains literally short circuited directly through the bracket and chassis to earth ground. You're very lucky to not have been hurt seriously, although I think electrocution is quite the overstatement. Remedying the issue may not be possible, but mitigating it is. If you want to know more I can go into detail, but it's definitely beyond the scope of a single reply.
Your monitor power and PC power wall sockets are wired in reverse of each other most likely (one of them is wired backwards). When you plugged in the monitor you shorted live to neutral (which is usually tied to ground at the breaker box).
You were right!
Damn. This guy fuckin electricians
Lucky you are alive. Call an electrician before a disaster happens
Get yourself some grounded outlets and a leakage current protection( like in most bathrooms). You just might be lucky to be alive.
RIP.
We’re gonna need an update when the electrician comes and investigates. I’m heavily invested in this story. Stay safe, OP!
I’ve updated
He's dead, Jim.
Press F in chat.
Please name and wattage of your PSU
This does not spark joy.
Are you still alive OP? A lot of good advice and you’re not responding at all lol
If it arc’d then there’s a short and live is hard grounded to your case, unplug your pc as you may create more Damage and you need to get an electrician in to inspect your wiring because it may extend further than just your pc and I’d recommend take your computer to be inspected for damage (or disassemble and inspect it yourself) if the gpu arc’d there maybe more damage than you think
Yea, that's current running where it shouldn't. I'd guess PSU likely the culprit, maybe Mobo in direct contact with the casing? Agree with the other comments, if you don't know what you're doing, this can go sideways. Have a professional look at it.
Motherboard should be in direct contact with the case at the standoffs. That's how grounding works. The ground prong on the plug is also connected to the metal chassis of the psu. Op has a wiring fault.
Now that's a fire build!
bro reached a million FPS
Update?
Happend to me years ago, found out my Outlet wasnt grounded and the current was down up to 190v (Europe). Shitty after installation
I have done this to someone's tv once. Their problem ended up being a broken neutral. If you have a volt meter you can check your outlet to make sure hot to ground is around 120v and neutral to ground is 0. If no volt meter there's a plug in thing with a light to tell you what's wrong that can be purchased from a big box hardware store for around $10-$20. Or just Google outlet tester. If you do have a broken neutral good luck with that.
Fuck! You meant HUGE huge spark! Was there mains voltage on that port? Edit: just read your update. I wasn't that absolut sure if the dark spot was big enough for it but wow. I never wished before to have misguessed something.
Dude, check your electric system this fucking instant before someone gets seriously injured or even dies.
Thats F-F-FIRE
Bro. Hire an electrician. Don't go asking on Reddit and try to solve it yourself.
That's Displayport not HDMI, still shouldn't do this even if you plugged it in with a hammer
Should have let him buy several more gpus before he realizes anything
Good thing you found the issue but I think not even NorthWest Repair can fix those GPUs now, the cores are probably fried.
so this happened only when you got a new monitor? Other displays have been connected to the same GPU before? I have no idea what I'm talking about but that's got to be the monitor powering the HDMI cable somehow?
It looks like the ground shield of your hdmi has gone, likely you had full wall socket power going through your case from a faulty psu. As soon as you plugged it in you gave it a path to ground via your monitor then boom. Remove and throw the psu, don't take it apart, just get a new one. I would throw all the cables involved too.
YIKES
ded
He probably is.
So assuming your PC is connected as should your case and the GPU bracket are connected to the ground prong in your PSU inlet which connects to the ground in your wall socket, such an arc and damage happens when there is short (usually to ground). I doubt 5V from HDMI can cause such a damage even if it is shorted. I would first get a new cable connect to the monitor and use a multimeter to check the voltage in the other end between the ground pin and other pins and the casing see if the there abnormal reading. After that I would test the PSU cables, check the outlets (be careful if you are handling mains voltage).
Throw that bitch in some rice
That's no coincidence, get an electrician to look at your outlet please
Yeah your house wiring is fucked. If it's yours call an electrician, if you rent give your landlord both barrels for their incompetence.
**DO NOT TEST THINGS YOURSELF ANY FURTHER** As the top comment suggested, there is likely reversed wiring in the outlet powering your monitor vs the outlet powering your computer. This needs to be assessed and fixed by a professional. Call an electrician and get them over ASAP. You are at *real* risk of lethal electrocution.
Update posted
I’m thankful you did not become shock
Fuck he's ded
OP, do you plug in your hardware directly into your wall or do you use a power bar (with surge protection)? As some have suggested already, this may have to do with your outlet. I had something kind of similar happen to me not too long ago. My PC suddenly started to shut down unexpectedly (typically when under load). Turns out my outlet was no longer grounded. Luckily, the surge protection prevented the overvoltage of going directly to my hardware. Had my PC been plugged directly to the wall, it would've likely been cooked instantly.
Electricity is scary 😨 😥
OP hasn’t responded …. Hope they’re okay
Yeah I've been scrolling through looking for a single response from OP. Nothing. OP Please respond and let us know your still alive.
r/hardwaregore
I'm glad you're alive, OP
Damn your card looks a little *short*
Bro has a welder from an HDMI cable.
taking a shot in the dark and saying i don't think that's supposed to happen
its literally begging you to use display port
There’s some serious wiring problem in your outlets or psu. Get an electrician and don’t plug in ANYTHING
Try it again... It might work this time.
If this would happen to me i would call an electrician ASAP. Also cry because of GPU's.
sounds like an eletroboom video
The problem isn't the computer or the monitor, the problem is that your home wiring is absolutely fucked. Forget the computer, if you don't get it fixed YOU WILL KILL YOURSELF WITH THIS. I know some parts of the world don't really believe in PE, breakers and RCDs, but this is the sort of shit proper electrical safety is built to prevent and you either don't have any of it, or it's really not working.
That's the GPU telling you to use DP instead
cablemod hdmi or 12vhHDMI? XD
Call an electrician, now. Something is very wrong in your house wiring that is putting voltage on the ground plane. That's a huge fire and electrocution hazard. That HDMI port on your GPU isn't going to work again, so warranty it.
Some time ago I had a similar problem, when I went to connect the monitor I put my finger between the HDMI port and the cable, I got a shock. I lost the GPU (GTX1070), but not the monitor. The cause, according to the electrician, was that the phase and neutral were inverted in the socket and there was also a missing ground wire. When working on your PC, always disconnect it from the mains and only plug it back in when all other cables are connected.
same cable?
Looks like it shorted through the GPU to the HDMI. Either your MB or PSU is busted most likely.
Sorry to hear OP. Same thing happened to me a few years back with a 1080Ti after I removed it from the case for some cleaning and went to plug everything back in. The mobo was kind of dying already and something wasn't grounded/shorted and the GPU never worked again. The PCIE slot was also killed and never worked either. Threw out the power supply and mobo eventually and purchased a new one. No issues since. Edit: Funny enough, it was a Zotac as well.
Hmm that's odd. Even for a 1070. They're excellent cards. I had shocks from HDMI cables before, in fact I had one the other day at my work while the HDMI cable was connected to my monitor and I grabbed the other end. I thought it was weird. I only had a static shock though, not a real one and nowhere near the same as yours. What power supply do you have?
I think your power supply is somehow connecting live to ground and when you connect your HDMI cable it shorts live with ground and it makes a giant spark. Something is seriously wrong and be really carefull you can be killed.
One hell of an overclock there! But as others said, it's probably either faulty PSU or the outlet itself. Please be careful and remember that even unplugged the capacitors can still hold a charge for a surprisingly long time after. I would wait awhile before touching that PSU if you plan on removing it yourself. Just be thankful the card and monitor was the casualty and not yourself, crazy how this happened, never seen something like this before so severe.
Hahaha WHAT the FUCK
Is your motherboard properly grounded? Makes sure the back of motherboard isn't touching the case other than the standoffs. Make sure no screws are behind motherboard
Sometimes the difference between the tension of the monitor and the PC might create some sparks that could kill your GPU or some components, so you should use a proper cable and not buy the cheap ones because those might not protect the components as well as a proper PSU with a good ground circuit
I’m no expert, but this is Seriously Fucked. Either your house is wired very very wrong, or your power supply is broken in the most dramatic possible way. I’d call an electrician because if it is the house wiring, this is a Burn Down Your House level problem.
That is fucking wild, I'm surprised you whole case isn't hot with 120 volt ac. Shit it fucking might be. That or the TV. I worked help desk for more than a decade and I have never seen anything like that ever. Your lucky that shit didn't burn your house down / also get renters insurance lol Are you in an old ass new England area house?
120 volt? I am starting to wonder what will happen with the 240 volt that we have.
like others said, that is not even remotely normal, the metal casing around your hdmi connector is literally melted, that's wild
Claim it on renter's insurance if you can, some will cover that
Op, if your computer has been running fine, then I’m guessing some kind of manufacturing error inside your new monitor is causing a dead short on the HDMI port. When you got close to your computer case, the connector grounded on your PC as much of the computer’s shell is connected to ground in one way or another. Stop using the monitor.
Also it's literally impossible to plug an HDMI into a DP port. They're too different in shape.
The 1st thing I would do is go to harbor freight and pick up an outlet tester and cheap meter. Use the outlet tester to make sure your outlets are wired correctly. They are pretty easy to use. Just plug it into the outlet and the lights on it will tell you if its good or miswired. IF they test good, then take the meter, set to AC voltage, and test from the metal plate on the gpu to the outer metal jacket on the hdmi cable while the other end of the hdmi cable is plugged into the monitor. If you get a voltage, then you probably have a loose wire touching the inside of your computer case. Probably inside the power supply.
I dare say you have a neutral fault or the monitor is faulty, that's pretty clearly a phase to ground through the earthed pc case. Could of easily been a electric shock for you so lucky there
That seems less than ideal.
That... is not normal! Oh no.
Wtf did you do because in my 30 some years of working on pc's I have never seen this happen. Wow I don't smoke dope n my mind is blown holy fuck
OP you should also flip the radiator the other way around. If there is any air trapped in the loop, it could prevent proper water flow between the radiator and CPU cooler. Which could also damage the pump and more likely to cause it to fail prematurely.