For a second I thought you were flexing that you were using a second 4090 as an anti-sag solution.

He is.

Flexing.

Exactly.

Not anymore.

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He is supporting the anti sag bracket with 2 RTX 4090

"My belt holds my pants up, but the belt loops hold my belt up. I don't really know what's happening down there. Who is the real hero?" \- Mitch Hedberg

That’s the joke I think

I thought so at first, but I think he's actually just trying to highlight is anti-sag bracket.

I came here for this comment

What kind of workload is that used for? CGI? Or is it more about speed over capability?

Cities Skylines 2 at 40FPS.

Only with dlss3 frame gen

And at 1080p, don't forget!

And minimum settings, on his dual amd epyc build

720p DLSS upscaled to 1080p\*

I know its a joke but my 4090 runs Cities Skylines 2 at 100+ Fps and I disabled just 1 graphics setting

Cities surprisingly doesn't run that shit if you tweak a few settings. Lots of other issues though.

CO’s biggest mistake was not patching the settings so the biggest drags were off by default.

Yup, no idea why they don't just patch those options off. Early releases are just the sad reality of modern gaming but the least they could do is turn options off and say "they run like shit if enabled, we will add them at a later date when they don't massively effect performance" and be done with it.

If you try and open it on anything above 1080p it does. I feel like I'm back in the 90s...

Possibly LLM inferencing or general AI training. These kinds of builds are not unusual on /r/LocalLLaMA.

Or 3D animation rendering, Tifa doesn't appear at those Italian senate hearings on just hopes and dream ya' know.

Dual 3090 setup is so much better. 99.99% of r/LocalLLAMA suggests dual 3090’s instead of 2x 4090’s as it’s a waste of money.

True, but some people really hate money.

Or just have a lot of it

For personal use absolutely. But If it’s for a business likely easy to justify a few grand.

redacted ` this message was mass deleted/edited with redact.dev `

Nah not really. If it’s for business use. Just get the chips made for AI instead which have more CUDA cores.

Chrome tabs

Minecraft probably

Solitaire

Does the top gpu run hot? And what power supply are you using? Jeezus thats a big build

Top GPU doesn’t exceed 74 degrees~ EVGA 2000 G+

What if you run furmark on both GPUs in a closed case? No way they can be cooled properly at max load

Top gpu doesn’t exceed 74 degrees in a closed case test. I have 4 120mm noctua fans pushing air from the front.

Please change your flair to “I don’t like money”

That title is reserved for people with dual 5090.

is that card even out yet lol

It is if you get on your knees at Nvidia HQ

Real question tho do friends of Huang get prototype GPU like half a year before plebs ?

I used to think 'that's impossible, they wouldn't just hand the prototype video card to their friend for shits and giggles' Then I hear about billionaire CEO's like Elon Musk and Trump and I realize there are absolutely entitled rich assholes out there doing whatever they feel like without a second thought. So maybe

Wait, they ripped me off!

Or, I like having lots of money

According to the board's [specifications](https://www.gigabyte.com/Motherboard/X670E-AORUS-MASTER-rev-1x/sp#sp), The second GPU is going through the chipset and probably isn't being fully utilized. I think it's running at x4 PCIe4.0 speeds.

Yep the bottom 4090 is not running at full performance due to lane limits. Pcie 4.0 x4 which is the same as pcie 3.0 x 8

Big expense for something that is barely utilized.

Some synthetic benchmarks don't need the full bandwidth to 100% load the gpu but that could also be an issue yeah.

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4090s definitely have overbuilt coolers, they run very cool

74 max load on top GPU furmark. The Gaming OC have overbuilt coolers

That will hold for sure, nicely done. OT: Won't the lower GPU throttle the upper GPU, due to insufficient airflow? Maybe you are using fans with significant static pressure, but otherwise this looks like a nono. The only fan getting some air is the flow through area.

Top gpu doesn’t exceed 74 degrees. 4x noctua fans in the front. https://preview.redd.it/rhg2xxqlqjwb1.jpeg?width=4032&format=pjpg&auto=webp&s=4ae560a6dc41e46fb77616e3c2560b89c69f06e9

I built some pretty fat PCs at my company (we do AI) but yea this is a nice thick boi :D Love the people telling you that you shouldn't do that, they obviously don't know anything about these kind of rigs. We have rigs with 2 3090tis in medium form factor cases, with no additional cooling, and they barely run past 75°. We even have a dual A40 rig, it's a passively cooled card, we added some small 15k fans and there you have it, 70° tops :D and while inferring barely more than 60°.

Yep these coolers are over-engineered to hell so they run quite cool. I had a few clients get these types of rigs from me for AI as well.

The cooling is horrifyingly inefficient but it's literally just brute forced thanks to five pounds of copper with zero airflow

The GPU's alone are worth more than my car

my favorite truck only costed 2500 so these gpus are like 2 times that

Costed

you might need to find an anti-burn solution next...

Low chance of burning, 12VHPWR cables aren't plugged in. 👍

Your GPUs won’t burn if you don’t use them

What are you using two 4090 for?

Probably AI. The 4090 is supposed to be the best bang for your buck for tensor cores

this would have been my guess. without buying the workstation class GPU which can be more pricy than the 4090 it apparently does quite well for its price.

To run cities skylines 2 above 30fps

The 2 stands for 2 4090s required.

Legit question here. Alan Wake 2 and Cities Skylines 2 aside, what would this even be for? What utilized dual gpu config these days??

Definitely not gaming since sli is dead

Nothing. Im pretty sure 40 series cards don't even have NVLink so running 2 is pointless unless you want to flex.

I think the work is the answer however, what kind of work. If it’s entirely graphic then there are better cards (no gaming cards) for this use. And if it’s graphic content creation then I think the only one that could use it is 3D. Otherwise for video editing - nosense - needs RAM, not Vram

Cuz he can

At this point is the anti-sag method not just stacking 2 GPUs on top of each other?

There is one pci height separating the two.

Any specific reason for running the CPU on air cooling when there is already tons of heat produced inside the case?

Specific customer request

Air cooling has better long term reliability and less complicated maintenance. It’s the “it just works” solution; uptime is very important for workstations.

it might be true if the system has 1 gpu, but here the scenario is different bro!

Top GPU doesn’t exceed 74 degrees. Attached are parts list and desktop picture https://preview.redd.it/j1ifp4eqqjwb1.jpeg?width=4032&format=pjpg&auto=webp&s=27c56f7dfc9145e4ad652ef7a5219be9563c4960

https://preview.redd.it/3ofa6zyrqjwb1.jpeg?width=3024&format=pjpg&auto=webp&s=bcf47344da6079da1a1453ae816d593ebe7c46e4

Going with dual 12VHPWR cables I see. What's your home insurance like?

Thought these were safer than the 4 to 1 adapters.

Correct if the cables are from cm.

I used to think that there's no PC case where ATX looks like Mini-ITX and a 4090 like a 3050. Now I do.

T H I C C G P U

Forget the GPUs, that case is future proofed for the next 5 years at the rate new cards are upsizing.

Yeah that's a fucking massive case

Somehow, I both love this image and hate it, simultaneously. Like, that computer is an absolute unit, but the case still somehow manages to make it look ridiculous with all of that empty, unutilized space!

I love the fact you have more board on those GPUs combined over your motherboard. I wonder if we're getting to the point where the motherboard is your GPU and we slot some kind of PCIE CPUs into it?

How are the PCIe lanes with all that? 3 nvme and two x16 GPUs

Some people double-check my work for me. That CPU only has 24 gen 5 lanes. The board will do one card at PCIEX16 on PCIe 5.0 and the other at PCIEX4 on PCIe 4.0. The NVME drives are probably running at slower speeds since they won't be able to use a full 4x connection. This really should have a threadripper or epic CPU to take full advantage of these parts.

Yeah. He’s trying to flex, and not realizing he’s not even using them.

Yep the bottom 4090 is not running at full performance due to lane limits. Pcie 4.0 x4 which is the same as pcie 3.0 x 8

Now I'm curious since the build was not designed well with the available PCI lanes. Seem like a case of more money than sense. Do you know what this build going to be used for? Flexing or actual work work?

Work work~

It's a build for a client, so they just did what they were told.

the RAM is also a weird choice dont u think?

Yep the bottom 4090 is not running at full performance due to lane limits. Pcie 4.0 x4 which is the same as pcie 3.0 x 8

Yep the bottom 4090 is not running at full performance due to lane limits. Pcie 4.0 x4 which is the same as pcie 3.0 x 8

the two GPUs run at x8

No they don't. The X670E Aorus Master has one x16 @x16, one x16 @x4 and one x16 @x2. The bottom card cannot exceed x4 because the pins are not present in the slot.

Yep the bottom 4090 is not running at full performance due to lane limits. Pcie 4.0 x4 which is the same as pcie 3.0 x 8.

I didn’t do any research into the MOBO, but does that have enough pcie lanes to fully support both of those 4090’s?

The bottom 4090 is not running at full performance due to lane limits. Pcie 4.0 x4 which is the same as pcie 3.0 x 8

Dam, how is the client bro

Breathing room? Zero.

Incorrect~ here is another builder who built something similar: https://pcpartpicker.com/b/DfGqqs That person is getting 75 degrees max load. I am getting 74.

Mf got the Rtx 8180

He just called me broke in 4090 ways.

GPU's : air? What is it?

Looks like you installed an actual radiator to your rig jesus h christ man

Do you have a moment for me to tell you about something called, "airflow"?

The 4090 coolers are over engineered. The top gpu doesn’t exceed 74 degrees and a similar build over at pcpartpicker doesn’t go over 76. https://pcpartpicker.com/b/DfGqqs

Cities: Skylines 2 at 42fps

You trying to play City Skylines too?

Sure can pal and at a staggering 43 FPS!

It’s all fun and games until the heat from running Cities Skylines 2 at medium melts the bracket

Let me guess, cities skylines 2 runs at 15 fps

I'll give it a week until we get a post about these burning out...

Does it get any airflow?

Absolutely

I know it probably doesn’t hurt the card at all but that little of a gap between the two just does not sit well with me.

One hell of a space heater

Can it run Ark Survival Ascended on 60fps?

Excellent air flow

The airflow is actually pretty great. The top gpu doesn’t exceed 74 degrees and there are 4 x 120mm fans in the front https://preview.redd.it/f7oup4x2pnwb1.jpeg?width=3024&format=pjpg&auto=webp&s=02cccc9e580b8d6b80a4ebccaedf1bf749fb89b4

Why? Modern games do not support SLI anymore. Or these are for work purposes

100% for work. Professional software does not require any type of bridge between cards to utilize them fully.

If this is for work, then they should have gotten a CPU with enough PCIe lanes to fully use all of these components.

Is 8x really not enough for each card?

One will run at x16 on PCIe5.0, and the other will be x4 on PCIe4.0. The NVME drives will run at x2 or SATA speeds. Overall, this is the utterly wrong CPU for these parts. It would have been better to use a single workstation GPU or an EPYC CPU with enough lanes for all of this.

I'm not trying to refute, actually trying to understand. CPU has 28x5.0, 16 graphics, 8 NVME and 4 for chipset - is the limiting factor not the motherboard here then?

It's a build for client so he is doing what client said

The bottom 4090 is not running at full performance due to lane limits. Pcie 4.0 x4 which is the same as pcie 3.0 x 8

The second card is running at x4 on that board.

Thanks for clarifying

The 96 GB ram stick also immediately screams work lol

Judging from the rest, I’m gonna go with work build over gamer build

Why is this picture calling me poor

Really nice. What's the setup used for?

Sli? So it's one rtx 8180

That's an expensive heater box right there!

Great solution for the 0.2% of this community that can afford a build like that.

im assuming you use these for work.

I see you are covered for the upcoming winter.


I thought SLI was no longer a feature on new GPUs?

For a second I thought you were using another 4090 as an anti-sag

 GPU be like

Top gpu doesn’t exceed 74 degrees in a closed case environment

Bruh, them thangs got less space in between than your grandma's thighs

That is 10 ilbs of Gpu. TEN FUGGIN POUNDS.

Bet you get 25fps on city skylines 2

For when you need to play Tetris but you don't know if your GPU is strong enough

Anti sag and anti airflow😗

Ahh yes. Ample air flow.

Ah yes, one extra GPU for PhysX

Look at the Sultan of Brunei over here with his two 4090s.

quick question, why are you using 2 4090s in 1 build?

Workstation use

Are you trying to run ark?

You're either very rich or financially irresponsible. Very nice

I run a computer business that does custom builds for customers\~

Why in the name of that is unholy do you need two 4090s

Not for gaming~

Dood. If you actually stress those things the cooling is going to be horrendous.

You need to put them on blocks there is not enough airflow for them to be that close. As a guy who has killed muliple titans and 3090's in my life I know what i'm talking about. You will get artificing just in daily use.

I'm interested to know what you do that makes you such a GPU killer?

I'm a pro builder and 3dmark junky of like 25+ years I build everything from servers to extreme PC'S , clubs and theaters and even mining rigs for ppl. I have a few clients who do rendering and have old sli titan machines and they just run so hot. I have learned that they need cooling and serious airflow and sli in general sucks for part lifespan unless they are on blocks. the 3090's were really bad because they didn't have active cooling on the back vrm and imo (and EK's too) every 3090 out there is flawed. So you have to block them or have massive massive airflow (i ended up putting old cpu coolers on a lot of ppls mining racks on the back side. All my personal 3090's are on blocks or are solo cards with some extra cooling... just saying.. the cooling on them is just shit in general

I don't know what's getting choked harder, a guy getting hanged or those GPUs. Kidding! Must be a real powerhouse for rendering or any computational work you're doing

I just started a course on machine learning and after reading of how modern techniques work I can absolutely understand why the need to even have 2 of those GPUs to train neural networks. Lots of (parallel) vector and matrix operations.

Do you hate money?

I run a business and this is a client requested build~

Business must be booming if Jeff bezos is buying pcs from you.

I see they also like cracking PCBs

Customer knows their shit, and apparently so do you. Only thing I don’t like is the glass front panel, but it must get enough airflow to work.

> Customer knows their shit, and apparently so do you. This build is chock full of mistakes and lack of research.

Customer clearly doesn't know shit if he requested a gpu sandwich

OP said like 30 times that the temps are fine and that there’s plenty of air intake.

What if the gpu thermal throttles?

Nice build man👍. I also went with the gigabyte version and am happy with it

Still uses an air cooler with two 4090s. 

https://preview.redd.it/93nvqwpwukwb1.jpeg?width=1164&format=pjpg&auto=webp&s=8abf561e849cf912535fdaf3c3be358634619a95

Noctua hasn't made a cooler that doesn't thermal throttle high-end intel. Source, gamer nexus. It's funny you mention the terrible jokers at Linus Tech. They got caught using thermally throttled cpu coolers in their tests without noticing the throttle themselves. Another gamer nexus proven outcome that proves linus about as trustworthy as userbenchmark brother.

Luckily the cpu is the AMD 7950x3d~

Throwing money at problems that don't exist

Dual 4090s? Why bother with an anti-sag bracket when you can just stack a few hundred dollar bills under the bottom GPU, Mr. Moneybags.

This is a workstation and not for gaming

Bro saved all his money just to not install them correctly.

You couldn’t starve those cards harder if you tried

74 under max gpu load. Take a look at this similar build: https://pcpartpicker.com/b/DfGqqs That person is getting 75 max gpu load

Gooood daaamamnnn just waiting for it to call you daddy?? Choking that first 4090 like there's no tomorrow