Question Complete PC Shutdowns (Need Help)

[BlessedOne1989]

Tom's Hardware family,

Long time dweller here but I've never posted. I'm so frustrated and I really need some help here. I recently built a new PC.

https://pcpartpicker.com/user/cmlkirk89/saved/#view=vb4NvK
Lian Li O11 Air Mini Glass ATX Mid Tower Case
Samsung Odyssey G9 G93SC 49.0" 5120 x 1440 240 Hz Curved Monitor
AMD Ryzen 7 9800X3D 4.7 GHz 8-Core Processor
ARCTIC Liquid Freezer III 280 A-RGB 69.9 CFM Liquid CPU Cooler
Gigabyte B650 AORUS ELITE AX ICE ATX AM5 Motherboard
Corsair Vengeance RGB 64 GB (2 x 32 GB) DDR5-6000 CL30 Memory
Samsung 990 Pro 4 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive
ASRock Taichi OC Radeon RX 7900 XTX 24 GB Video Card
PSU: Lian Li SP850

After building my PC I installed all drivers and software, ran multiple Cinebench and other stress tests to ensure my build was stable. I've had the PC since late November and I've been plagued with constant SHUTDOWNS of the PC. Like full immediate shutdowns... This can happen while gaming, sometimes even opening web browser tabs or alt-tabbing through programs. When the PC shuts down, some of my RGB lighting stays on like on the CPU cooler and RAM but everything else is off. I can't simply power the system back on either, I need to kill the PSU switch and then turn it back on to boot. After booting, the system comes up as normal. My temps are solid and I've tried limiting the power drawn on my CPU and GPU. I've legit turned every setting to default and nothing seems to solve the issue. At first I thought it may be driver related but I'm starting to thing its the Lian Li PSU...

Any help or recommendations would be so so helpful! Thanks guys and Happy New Years!

 

[Lutfij]

Welcome to the forums and Happy New Year, newcomer!

What BIOS version are you on for your motherboard? When you experience these shut down, keep and eye on the temps using HWInfo.

I've legit turned every setting to default and nothing seems to solve the issue.
At the very least, enable X.M.P and see if that helps. Speaking of X.M.P, per the memory specs's page;
https://www.corsair.com/us/en/p/mem...-b-WQTi7tr-uZV8fN3_XmNqukIqD33b#tab-techspecs
they show to be meant for Intel's 13th Gen platform. If I were you, I'd have looked into a dual channel ram kit that had AMD's E.X.P.O advertised on it.

What OS are you working with? Was the OS migrated from an older build? If the OS was installed clean after building your system, did you install the OS in offline mode?

 

[BlessedOne1989]

Welcome to the forums and Happy New Year, newcomer!

What BIOS version are you on for your motherboard? When you experience these shut down, keep and eye on the temps using HWInfo.

I've legit turned every setting to default and nothing seems to solve the issue.
At the very least, enable X.M.P and see if that helps. Speaking of X.M.P, per the memory specs's page;
https://www.corsair.com/us/en/p/mem...-b-WQTi7tr-uZV8fN3_XmNqukIqD33b#tab-techspecs
they show to be meant for Intel's 13th Gen platform. If I were you, I'd have looked into a dual channel ram kit that had AMD's E.X.P.O advertised on it.

What OS are you working with? Was the OS migrated from an older build? If the OS was installed clean after building your system, did you install the OS in offline mode?

I've had HWinfo up 24/7 and I never see temps above 80 degrees. In terms of power spikes, the shutdowns are instant so its hard to tell if the shutdowns are related to power spikes.

I have XMP enabled in the bios. I'm running the newest advertised bios as well. I read enough reviews on the RAM that I was comfortable with the purchase within my system.

I'm running Windows 11 brand new build, no migration and I installed it fresh upon building the PC last month.

 

[stuff and nonesense]

Check and recheck all your PSU connectors. Ensure that all the peripheral cards (GPU) are connected properly. Make sure there are no loose wires (pins) in the connector housings.

Run the PC in its default settings, no OC, no xmp, everything as it comes out of the box. See what happens over a couple of days.

Repeated random hard resets are rare. I’d be looking towards a faulty PSU or PSU connection as a starting point.

 

[BlessedOne1989]

Check and recheck all your PSU connectors. Ensure that all the peripheral cards (GPU) are connected properly. Make sure there are no loose wires (pins) in the connector housings.

Run the PC in its default settings, no OC, no xmp, everything as it comes out of the box. See what happens over a couple of days.

Repeated random hard resets are rare. I’d be looking towards a faulty PSU or PSU connection as a starting point.

Thanks for the input, I've been running default out of the box settings for a day now. The resets keep happening. I even bought new PSU cables thinking the pigtail to the GPU could have been bad and I'm still getting hard resets... I have another PSU coming for testing and I'll keep you posted on that. Outside of the new PSU, anything else you'd test?

 

[stuff and nonesense]

I’d run off the inbuilt graphics, removing the gpu for a few days only to see if the problem persists. I would then look at if possible swapping the CPU, again for diagnostic purposes. If the problem persisted I’d be sending the motherboard for RMA.

Did you buy the parts from the same place at the same time?

 

[Ralston18]

Look in Reliability History/Monitor and Event Viewer for error codes, warnings, or even informational events that occur just before or at the time of the shutdowns.

Reliability History/Monitor is easy to use and presents a timeline format that can reveal patterns.

Event Viewer requires more time and effort to navigate and understand.

To help:

How To - How to use Windows 10 Event Viewer | Tom's Hardware Forum (tomshardware.com)

Both tools support clicking any given entry for more detailed information. The details may or may not be helpful.

And remember that you can take screenshots of what you find and post the screenshots here via imgur (www.imgur.com).

Increasing numbers of errors and varying errors may indicate, for example, a faulty or failing PSU.