3080 FE - Black screen restarts

[xPETEZx]

What BIOS ver are you running ? I was getting some intermittent black screen reboots which I thought was maybe my RAM or even the games themselves but after updating to a newer beta BIOS (151 > 153 I think) for the X570 tomahawk the issues went away. Havent tried the newer official BIOS 1.5 or beta 1.6 yet since seems good atm.

I am running beta 1.54, I was tempted to try updated to 1.61 to see if it helps, but hate having to re-do all my bios settings.

Did you definitely remove all your CPU undervolt settings? I've been messing around with CO undervolting and all the articles say that you get instability at low load/near idle long before you get any problems under high load. Especially things like going from high to low load and vice versa, which sounds a bit like what you're describing.

Yes I reset BIOS. The issue occured again in that state, so that led me to believe its not the undervolt.
I then re-applied my UV, and ran Prime95 for 4hrs+, no crash.

I had similar problems with a faulty X99 motherboard but mainly freezes, not reboots, at idle or not under 100% load. Disabling C-States (which kick in at lower loads) in the BIOS would 99% work around the problem. You definitely tested the CPU at stock without the undervolt (using the PC normally and the problem still occurred)? This is because if it's the case that the undervolt lowers the voltage across the entire voltage curve then a stress test would not pick up problems that occur at lower loads as it only tests at 100% load.

I think I am now down to it being:
Motherboard
PSU
GPU

When I came back to my PC this evening, it again crashed as soon as I woke it from sleep.
This time thought it did not reboot, but just stayed off. Pressing the power button had no effect at all. Would not start.
I turned the power off at the PSU and back on, then it booted fine.

However that kind of made me think its got to be a PSU or Motherboard issue? (sorry to those I dismissed earlier!)
Surely a failing GPU would not prevent power button starting the system?

Either way, I decided to risk putting my old HX750 back into service. So running on that now, will see if I get anymore black screen reboots.
If I dont... I guess I need to RMA the RM750i ... if I do get another black screen reboot I guess that would make Motherboard perhaps the prime suspect?

If that happens, ill try put my 3080 in my old PC.... to rule that out.

Again, thanks for all the helpful comments so far. Hopefully getting somewhere

 

[xPETEZx]

So far so good... not a single crash since I switched out the PSU to the old HX750.
I have played games and tried to create as many scenarios that caused a crash before as I could. So far so good.
I opened a case with Corsair, so hopefully get the RM750i replaced ASAP.

The HX750 is the loudest component in my build at idle by some way... I forgot how loud it was! Makes more noises than just fan too which makes we slightly warry.
I checked and its nearly to the day 11 years old :O

Hopefully dont have to wait long for a replacement. Even though I also worry that if they just voltage check or boot test the RM750i it will work fine :| Fingers crossed, Corsair support has always been excellent in the past.

 

[jack allen]

I completed my new build system start of feb when I managed to obtain an RTX3080 FE, full spec:

CPU: 5900x
Cooler: Dark Rock 4 Pro
Mobo: MSI X570 Tommahawk
RAM: Crucail Ballistix Red RGB 2x 16GB 3600 CL16
SSD: Samsung 970 Evo Plus 1TB
PSU: Corsair RM750i
Case: Fractal Design Define 7 Compact (w/ 4x 140 & 1x120 Fans)
GPU: nVidia RTX3080 Founders Edition (connected using Corsair 12-pin cable)

Since last Wednesday I have been having random black-screen reboots. I had updated to latest nvidia drivers earlier that day.

The crashes usually happen in-game, and usually within a few seconds of the game full loading. However they have also occurred at desktop just web browsing.

Here is what I have tried so far:

1.) reverted driver to previous version (using device manager revert button)
2.) Clean-install of the latest drivers
3.) Disabled GeForce experience overlay and updated to the latest version.
4.) Ran the card at stock clocks instead of its usual undervolt of 850mv @ 1850Mhz
5.) To rule out the CPU, ran stock. Instead of the usual -30 curve. (Ran Prime95 for 4hrs at usual undervolt to confirm stable)
6.) To rule out RAM, ran at stock instead of XMP. (Ran Memtest @ stock & XMP settings. 0 errors after 5hrs+)
7.) Confirmed all physical cables secure. Reseat card securely in PCIe slot and ensured good fit.

So far none of these tests or fixes have worked. Most annoyingly I cant reliably cause the issue. Sunday I had 3 black screen reboots while just using Firefox (trying to complete the census of all things!)
The day before I had 2 black screen reboots trying to play Hitman 2, then was able to play fine for 2hrs+ on the third attempt.
Day before I attempted to run Prime95+Furmark. On first attempt, after less than 1m of both running system reboots. When it came back up, it ran fan with both CPU & GPU @ 100% load for over 30 minutes.

On Sunday I ran 5hrs+ worth of Memtest86 (both at stock & XMP) to confirm RAM is 100%, followed by 4hrs of Prime95 with CPU at its usual -30 undervolt. (So system online for 9hrs+) Then I browsed the web for a bit, before going to test FurMark one more time... and again black screen reboot within 1m~

All this leads me to believe the issue is the RTX3080 FE. I know some people will point fingers at the PSU, but if the PSU was the issue id be expecting it to crash reliably at very high power loads.
I do have a near 10-year old HX750 I could test too, but would rather avoid doing so, as that thing is long past warranty period.

As these are black-screen-reboots, I get nothing in event viewer. Just a "event id 41 task 63" indicating that the previous shutdown was not clean. Nothing to indicate what caused the issue.
I disabled auto-restart in Windows, but it still does it anyway.

I am at my wits end as to what the issue could be. The system ran 100% reliably for nearly 1.5 months. Since Wednesday I barely trust it...

My next test is going to be a clean install of Windows on a different SSD, install just the bare minimum and see if I get crashes the same way.

Appreciate any tips of pointers any of you guys may have!

I had the exact same issues as you, when I got my 3080 ftw3 and the thing we had in common was the same mobo (msi x570 tomahawk wifi)

I spent weeks trying different ram, PSU (everything from a 750w to a 1000w) different ram, clean install of video drivers, clean Install of windows on fresh ssds. Eventually I bought another x570 tomahawk WiFi and its worked fine ever since. Can't really explain it, but that's what fixed it for me.

 

[xPETEZx]

I had the exact same issues as you, when I got my 3080 ftw3 and the thing we had in common was the same mobo (msi x570 tomahawk wifi)

I spent weeks trying different ram, PSU (everything from a 750w to a 1000w) different ram, clean install of video drivers, clean Install of windows on fresh ssds. Eventually I bought another x570 tomahawk WiFi and its worked fine ever since. Can't really explain it, but that's what fixed it for me.

Oh no
I was hoping I was on to the culprit with the PSU...
Onto day 2 of the old HX750, and no reboot still. Still nervous running my new gear on an 11yr PSU but its holding strong in everything so far.

Did you RMA the motherboard? What BIOS version where you on?