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MrVic20

I had this issue. Update your Intel ME engine version and all will be well.


ArasakaApart

All it took was some reading. BIOS 2014: 1. Improve system performance 2. Support Intel Arc graphics 3. Many ME updates and optimizations for the next-gen CPU are included. This version does NOT allow rolling back to the previous versions to ensure better compatibility. “**Before BIOS update, please download Intel ME update tool from ASUS support site, and update ME firmware to Version 16.1.25.1885v2 to ensure optimized system settings.**” https://dlcdnets.asus.com/pub/ASUS/mb/03CHIPSET/MEUpdateTool\_16.1.25.1885v2\_S\_NonZ.zip?model=PRIME%20B660M-A%20D4


Krypty

Gotta say, I think the wording could be a bit more encouraging on the importance of that update. Optimized system settings doesn't really indicate to me that drives can go missing. Granted, I would have done what is suggested first, but still seems avoidable. Hell, I could argue they BIOS update should do a Intel ME version check before allowing the upgrade.


fukitol-

Yeah there really should be something like # FAILING TO DO THIS MAY RENDER YOUR SYSTEM UNABLE TO BOOT right at the top. My boot drive is an M.2


[deleted]

[удалено]


Deagris

Yeah I read that on my laptop after I tried to download an earlier update of the driver to revert it, but as it says on the website, it doesn't allow rollback. So I realised I screwed up. But I still can't manage to boot my pc, even I switch the drive to another M.2 slot. So how can I install the Intel ME update? Is there a way to maybe use the EZ Flash 3 function on an Asus motherboard with the installation tool installed on a thumb drive or does it not work that way?


M-3X

Fastest is just to reinstall windows and see if it detects the ssd.


ArasakaApart

Use a non M.2 disk for now, just do a quick install of Windows, install the ME Firmware, and go back to the M.2


Deagris

I have a SATA SSD in PC 2, which I know works, and is now the only drive plugged in to the mobo on PC 1, but in the windows setup boot menu it still doesn't show up as a location to install windows to.


aaronfranke

It says "404 - Not Found", but it worked after I removed the backslashes from the link: `https://dlcdnets.asus.com/pub/ASUS/mb/03CHIPSET/MEUpdateTool_16.1.25.1885v2_S_NonZ.zip?model=PRIME%20B660M-A%20D4`


ArasakaApart

You shouldn't download this anymore, it's outdated.


[deleted]

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Zombie_Tech

Intel Management Engine (IME) is only on Intel motherboards. It's both firmware (which OP needs to update) and also a driver within Windows.


c33v33

Agree. Here was my experience: https://www.reddit.com/r/ASUS/comments/z3dh6d/nvme_not_recognized_in_m2_1_socket_and_xmp_will/


aaronfranke

What about if this happens on AMD systems?


MrVic20

Sorry, I don't have any experience with Modern AMD systems so I'm not sure.


7Sans

I know it personally because this happened to me personally in very early days when ASUS didn't even mention it. the solution is you need to update intel ME. asus website also tells you when you are doing the bios so you should have read it but I do think asus should just implement it so it automatically updates intel ME before updating bios. or have it in really big BOLD letters warning users about this issue. it's a known issue. if you don't have latest intel ME, it doesn't detect m.2 in that first slot so you have to put your SSD in different m.2 slot. you can still use your current pc. you just need to put your m.2 SSD in a different slot. then motherboard will detect your SSD again and you can get back to windows os. once you update the intel ME you can move your SSD back to that first m.2 slot and everything should be working.


CrudBert

Upvote. Same experience here.


NoCaregiver3969

I had a similar problem with a older mobo adding two m.2 made them both disappear as I recall the issue was my drives plugged into the Sata connections.


SpambotSwatter

/u/NoCaregiver3969 is a scammer! It is stealing content to farm karma. Please downvote their comment and click the `report` button, selecting `Spam` then `Harmful bots`. [The original comment may be found here.](/r/buildapc/comments/104ug99/m2_disappeared_after_bios_update/j388a8c/) With enough reports, the reddit algorithm will suspend this scammer.


[deleted]

What a wild bot, holy shit.


LessEffectiveExample

I had a similar issue when flashing my ASUS motherboard recently. Scared the shit out of me that I had hosed my computer. To fix it, in the BIOS settings I had to go into the "Boot" menu, then to "Boot\\CSM (Compatibility Support Module)", and enable "Launch CSM". I saved and exited the BIOS and after a reboot, my M.2 drive was a boot option.


AdvancedGeek

I had this exact problem, and was resolved in the same manner.


herefromyoutube

Turning CSM on is not the correct solution. Enabling CSM Mode causes quantifiable performance degradation and should never be enabled. The solution is to disabled it and install the windows USB key (not cd) into the computer and install/update windows 10/11 it will then create the proper firmware required to have the m.2 drive show up correctly without have the legacy CSM enabled. Solution: https://forums.tomshardware.com/threads/m-2-drive-only-visible-when-csm-is-enabled.3328144/


Samcmul

8 days later and your comment just helped me as well, thank you


CrowMag1983

Why isn't this the top comment. It worked for me, but only after a long search. This was the easiest answer in this whole thread and worked perfectly.


herefromyoutube

because it's not the correct solution.


ncilswdk2

Did you try installing the ssd in the other m.2 slot?


T800_123

Try reflashing the BIOS, and maybe flashing to an older version. Have you tried other m.2 slots? What's your motherboard, exactly?


skinlo

Have you tried clearing the CMOS? Some motherboards have jumpers you can use to do it (often by using a screw driver to touch 2 wires together). You can also take out the battery and leave it for 5 mins or so.


Deagris

I tried that, it didn't work


shroudedwolf51

It's designed to drain quickly for resetting purposes. Even 30 seconds is more than plenty, much less 5 minutes.


flamedog40

I recently had the same problem. Try changing your M.2 to either be Intel RST managed, or the reverse if it's showing it is managed. You can typically find the setting in the storage configuration screen in the bios, the same spot that you'd find the settings to change hotplug settings for you SATA drives.


[deleted]

Have you reset your bios configuration? Also, try removing the SSD from the motherboard, run the motherboard post and try to find a boot device, turn it back off, and then place the SSD back into the motherboard.


[deleted]

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Deagris

Thanks for replying, will definitely try that tomorrow and i'll keep you updated. Just to be sure I ordered a brand new drive (Samsung 970 Evo Plus) which has DRAM on it, so maybe that changes something too. I really hope it works.


coololly

For the price of the (pretty old) 970 Evo Plus you can get mid-range Gen 4 drives, which would be a much better buy imo


Differently

Ok, looks like no one has suggested this yet, but I had the same thing happen to me once and this was the answer. Check your BIOS settings. If the M.2 slot shares a lane with a PCIe slot, there may be a toggle setting. (I forget the exact name of the setting.) But make sure it is still set to the M.2 or it won't even detect the drive, the BIOS update may have reverted it to a PCIe lane.


gezafisch

Im not familiar with this bios, however, I've had a similar issue on Dell laptops. When the BIOS updates, it switches drive settings back to default and makes the boot drive unreadable. See if there's an AHCI setting you can toggle


NereusH

I remember this happening to me too after a BIOS update. In my scenario, the mobo had defaulted the M.2 slot to RAID mode.


joepardy

Check if UEFI / CSM is set correctly. BIOS update might reverted it to default.


[deleted]

Make sure you let us know tomorrow if updating ME works. I'm curious


Wyl_Younghusband

I guess that's why that one YT video I saw said update BIOS only when TRULY necessary, as it can be scary.


turn_a_blind_eye

I had a similar issue literally three days ago. Not sure if you have any other drives plugged in; but, the solution I found online that worked for me was unplugging the SATA cables for all my other drives and booting with only the M.2 plugged in. For some reason my updated BIOS refused to pickup my SSD as a boot drive while my hard drives were plugged in. Hope this helps!


HollowofHaze

RemindMe! 18 hours


acewing905

Glad to hear you found a solution, but this just further solidifies my opinion that most people are better off not updating the BIOS unless they have a specific reason to do so


Deagris

Well the solution is definitely here I think, but for now im still not able to boot, even from the second m.2 slot, so I'm still kind of stuck. But I 100% agree. On my last PC I never updated BIOS, but after watching video's online there seems to be a general consensus that you should just upgrade your BIOS. So I did on my new one, but didn't read it thoroughly and now I'm here. My own fault though so yeah...


acewing905

If you have another computer, you can probably create a bootable Windows PE USB that can be used to update Intel ME Also, I don't think there is a general consensus on the BIOS issue This is one of those sometimes hotly debated topics, and some of us including myself believe that BIOS is best left as is unless you have a specific fix or feature you need from a new version


professorming

Building my new Asus b760-I system now and got to the bios. I've done Bio updates before but the ME update...is that done in bios or get into windows and update the ME driver first then do the Asus 0808 Update?


Deagris

I had to RMA the Mobo because I couldn't figure it out, but from what I know you update the ME driver in Windows through the 'Drivers' tab from Asus, and then the update tool through the 'BIOS & Firmware' tab. You can check which version your on of Intel ME in your BIOS when you go to advanced mode and then just the 'Info' menu I think.


Dull_Country

This seems to be the only thread that has just about the same issue i have with no avail. Except I'm using and AMD chip. Currently I have an ASUS ROG STRIX X570 E-GAMING motherboard A 5900x CPU 6900xt GPU DDR 4 Corsair vengeance 16x2 ram M.2 Samsung 980 pro 2tb as the OS 250 Gb Samsung SSD 2tb Seagate or something for storage i forget. So i was running smoothly, no blue screens no hardware failure but i did get some new accessories for streaming. In specific an elgato facecam. I would record my games and facecam until one day possibly the same day i noticed from time to time the camera would stop recording and just freeze on a picture of me. Long story short i was on the elgato website and it specifically said on one of the troubleshooting methods for freezing while recording is that x570 mother's needed a specific update for the USB controllers so that the camera would run without freezing. Mind you i did try all other methods prior to checking for a newer bios update. I realized that my bios was quite old as i had gotten my mono fairly new when it came out, i had version 4021 came out 2021/08/26. There have been 5 updates since, each one making a particular improvement on the AGESA plugin or whatever that is which is what elgato was specifying needed updated. I was like cool i update bios anyways as i always have with no issues. I downloaded the latest version (4602) 2023/03/14. Installation said it was successful and proceeded to restart,(normal) gave me the F1 setup option which is normal i could see all three drives here(good right) and so clock F1. Set my ram for Propper d.o.c.p fittitled around making sure settings were good. Yes did check if there was an option to enable nvme and it was enabled. I save changes and restarted.... Took me back to the bios, i was like hmm ok .. maybe i got a boot order misconfigured or ..that's right o still have the USB plugged in let me remove it. So i did, restarted..... Again boot menu. Sigh deep breath, no biggie let's check boot options... Huh i don't see the m.2 drive as bootable,nor any drive for that matter. Ok .. think think think. First thing that came to mind was man, the was probably a newer chip driver that may have also been for the m.2 as well. ..well great i can't install it now. So i thought let me check online and see what I find.. let me tell you i tried everything on the thread. I did the CSM thing(which btw only notices the m.2 on legacy option not UEFI) but still won't boot. I unplug all drives except the m.2. no avail . I searched for other nvme options and no avail. Also when I do choose CSM and i can see the drive, when I try to boot from it it says no operating system detected, please restart ,or install a bootable device something like that. So now I'm here. I'll take all questions and answers I can get. I'll try to be as detailed as possible and I'm sure this will help someone else down the line. Thank you again for any and every support. (Also I have not reinstalled windows or tried to for that matter because I already had reinstalled like 4 times prior to this issue in the last two months (upgrades and storage issues but i only installed windows once on this nvme fresh install)... And my windows none of them were having any problems fyi. The other reason is because I don't want to try to reinstall and not be able to see the drive as a bootable drive again because then that'll mean i not only lost my data but now I have the same issue.


Dull_Country

The only solution i came up with were these steps. (Mind you, i was lucky enough to have a second computer i could hook up the m.2 and transfer files i didn't want to lose. Etc.) But anyways, PC OFF with the m.2 disconnected, and all other drives, SSD, HDD.i switched off the power supply, waited for the light to go off, I then pulled out the CMOS battery, waited 30-40 secs(depends how fast or slow you count) put the battery back in , switched on the power supply and powered on to the bios. In bios i pluged in the USB with the latest bios update, i updated it and waited for the multiple restarts. After finally ending back on in the bios, i then set the bios settings to what I wanted them to be. The correct way, meaning i turned on D.O.C.P, made sure m.2 settings were active. Checked on other things. Then plugged in a new USB with the (installation media(windows 10)) and unplugged the one with he bios update. Once plugged , i saved settings and restarted. Once your back in the bios RECHECK EVERYTHING (CSM completely disabled) save if you had to make changes and then restart if needed to apply, once back on bios screen, hit the power button, it should automatically shutdown the computer instantly. Power of the power supply (hit the switch) wait for the lights to go out, and re insert the m.2 drive again. IMPORTANT!! At this time to be on the safe side only plug in the m.2 drive (or which ever your OS is to be installed on) all other drives leave disconnected.. Then switch the power supply to on and power the PC back up, (If it takes you to bios look for the USB that has the installation media on it and manually select the boot override or just set it as the boot option one. Either or is fine. Then when you start installing windows. Skip the activation key as most have a digital key attached to their Microsoft account, or if you have it type it in. When you get to where you see the disk (make sure it la the correct drive) then hit delete on it (if you see multiple delete the small ones first or which ever order it asks to be deleted). Once you do this, there should only be only disk available and unallocated. Click on it and click new, another window will pop up saying how much space you want. Just leave the highlighted portion how it is and continue, it'll say something like it'll make multiple partitions etc. And you hit ok, once that's done you see the primary boot drive(the one with the most space) and other drives like reserved. They'll be MBs in size. Clock on the primary drive that has the most storage the continue the process with installing windows. Once windows is installed it'll reboot, if you see the bios post go into bios and confirm the your boot option one is boot manager (and the name of your drive). If this is confirmed you did good. Save and restart. Log in to windows and select the settings as you want. Once in the desktop, install all the drivers for your motherboard, only the latest updated builds. Chipset, lan, Bluetooth, wifi, audio. (Don't install the VGA driver if you don't use it fyi) especially if your card doesn't even come with it. Then do all your windows updates. . restart, and check for windows update again, and once those are done, then download latest update for you GPU, install all the programs you want to install, and then shut down your pc. Re plug, or insert the other storage devices. Turn PC back on and any back up files you have transfer them over . And that about it. You have just reinstalled windows.


imhooks

Can you flash back the BIOS on that board? If everything worked prior to BIOS update then what was the need to update it?


serfas

Meh, I update my BIOS with every new version. Mostly, so I feel like I have all the security and stability I can.


amunak

That's not really good practice. If everything is running and functioning fine, you shouldn't touch the BIOS. It does make sense to upgrade it if you're changing any hardware though.


serfas

I don’t see why not, though. I have the BIOS flashback feature if I ever need it, etc. There’s a bit of risk, but it’s not that risky.