Losing display during demanding gaming, CPU debug light pops up

[Raeid324]

Issue: When I play demanding games such as RDR2 or Warzone 2.0, display will suddenly turn off and the CPU debug light will also turn on on the motherboard. The motherboard lights and fans are still on; it looks as if the pc is running. Power switch on case does not work, so I have to manually turn power off from the PSU to turn pc off.

When did issue show up: I recently upgraded pretty much my whole pc (cpu,gpu,psu,2 more ram sticks) and all was fine. I realised that I powered my GPU (rx 6800XT) using daisy chains, and read that you should power them separately. Issue showed up as soon as I used two separate PCI cables to power my GPU.

Extra details: Undervolting my GPU seems to massively help (only no displayed once in the last week while playing RDO, all other games were fine) and undervolting both my cpu and gpu seems to resolve the issue entirely. I initially thought my PSU was faulty, so I bought another one (went from RM850 to RM750) and issue sill persisted. No overclocking on any components, RAM runs on 2666 Mhz.

PC specs:
[ul]
[li]B450 Tomahawk Max[/li][li]Ryzen 9 5900x[/li][li]RX 6800XT (merc version)[/li][li]RM850 corsair psu (I also tried RM750 - same issue still)[/li][li]4 8GB 3200 corsair vengeance ram sticks[/li][li]1 TB SSD (Samsung EVO) and 1 TB HDD (Seagate Barcuda)[/li][li]Gammaxx GT BK Cooler for cpu[/li][/ul]
Any suggestions would be massively appreciated, thank you in advance.

[Pyro]

Let’s get some more information:

Download and run speccy.

Once you have ran speccy, follow the instructions to upload a snapshot found here.

To publish a Speccy profile to the Web:
[ol]
[li]In Speccy, click File, and then click Publish Snapshot.[/li][li]In the Publish Snapshot dialog box, click Yes to enable Speccy to proceed.[/li][li]Speccy publishes the profile and displays a second Publish Snapshot dialog box. You can open the URL in your default browser, copy it to the clipboard, or close the dialog box.[/li][/ol]

[Raeid324]

Let’s get some more information:

Download and run speccy.

Once you have ran speccy, follow the instructions to upload a snapshot found here.

To publish a Speccy profile to the Web:

link to my speccy profile: http://speccy.piriform.com/results/t...Muu8fmi0VqbzqP

[Pyro]

Installation Date: [COLOR=rgb(184, 49, 47)]24/10/21

When upgrading components such as the CPU, changing the OS drive, or upgrading the motherboard, it’s best to start off with a fresh installation to ensure proper drivers are installed and done so in the correct order. All applicable drivers should be installed before allows Windows to automatically install updates (these are generic and not good for performance).
Disk Letter: C
Free Space:
180 GB ([COLOR=rgb(184, 49, 47)]20%)

A little more free space might help you, 20% is technically within spec, but 25-30% would be better to ensure.

Make sure all of the power cords are plugged in to the correct place, the correct orientation (one side will go the PSU, the other will go to the component), and plugged in firmly (there should be a click when they are fully seated).

This is my laundry list, it’s a good starting point for troubleshooting and should get you an idea what’s going on:

1. Try running the following programs, also try to keep at least 25-30% of your disks as free space.

Run Disk Cleanup (check all the boxes) this will delete things such as your recycling bin, so make sure you don’t have any files you want to keep.

Run Defragment and Optimize Drives, run this on your drives.

1. Disable any overclocking or changes to power/performance settings

Turn off XMP/any overclocking you may have done (if any)

Settings > System > Power and sleep > Additional power settings
Make sure your power plan is set to balanced, anything else could tamper with the wrong settings and cause issues.

1. Check for Operating System Corruption

Right click on the Windows logo in the bottom left and select Windows Powershell (Admin)
Run these three commands separately:

sfc /scannow

Dism /Online /Cleanup-Image /CheckHealth

Dism /Online /Cleanup-Image /RestoreHealth

These will take a while to run, do not close out of Powershell while they are running, if one fails then move onto the next and then loop back around.

Note: It doesn’t hurt to make a system backup before you make all these changes, save any important files of folders. While these changes shouldn’t cause any issues, better to be safe than sorry.

1. Unplug unnecessary devices.

If you have a gamepad, extra monitor, external hard drive/flash drive, or anything that is not essential to using the computer plugged in, unplug it.

Once you have completed all of these tasks, restart it (using the restart option in the power menu) and re-test.[/COLOR][/COLOR]

[Raeid324]

When upgrading components such as the CPU, changing the OS drive, or upgrading the motherboard, it’s best to start off with a fresh installation to ensure proper drivers are installed and done so in the correct order. All applicable drivers should be installed before allows Windows to automatically install updates (these are generic and not good for performance).

A little more free space might help you, 20% is technically within spec, but 25-30% would be better to ensure.

Make sure all of the power cords are plugged in to the correct place, the correct orientation (one side will go the PSU, the other will go to the component), and plugged in firmly (there should be a click when they are fully seated).

This is my laundry list, it’s a good starting point for troubleshooting and should get you an idea what’s going on:

1. Try running the following programs, also try to keep at least 25-30% of your disks as free space.

Run Disk Cleanup (check all the boxes) this will delete things such as your recycling bin, so make sure you don’t have any files you want to keep.

Run Defragment and Optimize Drives, run this on your drives.

1. Disable any overclocking or changes to power/performance settings

Turn off XMP/any overclocking you may have done (if any)

Settings > System > Power and sleep > Additional power settings
Make sure your power plan is set to balanced, anything else could tamper with the wrong settings and cause issues.

1. Check for Operating System Corruption

Right click on the Windows logo in the bottom left and select Windows Powershell (Admin)
Run these three commands separately:

sfc /scannow

Dism /Online /Cleanup-Image /CheckHealth

Dism /Online /Cleanup-Image /RestoreHealth

These will take a while to run, do not close out of Powershell while they are running, if one fails then move onto the next and then loop back around.

Note: It doesn’t hurt to make a system backup before you make all these changes, save any important files of folders. While these changes shouldn’t cause any issues, better to be safe than sorry.

1. Unplug unnecessary devices.

If you have a gamepad, extra monitor, external hard drive/flash drive, or anything that is not essential to using the computer plugged in, unplug it.

Once you have completed all of these tasks, restart it (using the restart option in the power menu) and re-test.

Thanks for you suggestions, really appreciate it. As for the time being, I have ordered a B550 Tomahawk MAG. Will build PC again and reset as you suggested. I will let you know if problem is solved or persists. Have a good day.

[Pyro]

Sounds good, @veeg can close this thread for you in the meantime. You can message a site admin to reopen it for you once you have been able to test things out.