Windows 10: PC BOOT UP AND REBOOTED

If anyone can help! Thank you! My PC started up and then it turned off and on again. This happened twice so far in like the span of 3 days. This hasn't happened before. These are all the warnings and events that happened during that time:Windows failed fast startup with error status 0xC00000D4.The previous system shutdown at 9:07:02 PM on ‎9/‎20/‎2023 was unexpected.The system has rebooted without cleanly shutting down first. This error could be

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Reboot loop on cold boots in the morning.

I mean possibly a bad write of the first bios. What happens in the dual bios is if the first bios fails to load, it cycles like 3-5 times trying to boot said bios chip. When it fails to load that correctly, the second chip automatically kicks in and you can boot.

I suggest trying a flash to the latest bios using a thumbdrive formated in fat32 with the bios file on it. reboot the PC and hit the Home key to get into the flash utility, then search for the bios and load it.

 

reboot and select property boot device

You need to set your main Harddrive which has your Operating System on as the first harddrive to boot, if have more than one harddrive.

open Bios
boot priority
Select the OS harddrive as first boot drive , If not sure switch between them
Set correct time and date if wrong
Save and reboot

If not sure on steps , give the Make and model number of motherboard and can assist you.

Hopefully no damage to the HDD

 

PC reboots (no BSOD) on CPU stress

Hi fellow TPU members,

not too long ago, the box my gf's PC was transported in gave way on the stairs. Yes, you got it right, that sent a PC tumbling down a flight of steps alright.

Stuff broke. Also, stuff remained intact somehow.

I bought her a new case, new CPU cooler and we removed the floppy drive, so far so good. But the PC started crashing for no apparent reason, without a BSOD.

I tested:

• Memtest86+, left overnight, 0 errors
• Scanned the HDD for errors, nothing there
• Left FurMark burning up the GFX card and drawing some power, no problems there
• Ran Ubuntu from a Live CD doing nothing special, didn't crash
• Ran OCCT, Linpack, Prime95, all 3 caused reboots within minutes
• Oh, and I disabled "Restart on error" so I'm sure it's not a BSOD.

Now, I can still try and test something CPU intensive on Ubuntu, but my guess is the CPU didn't survive.
Before I do anything drastic like whippin' out the magic wallet and get her a new AMD quad, is there anything I didn't see?
I'm guessing the motherboard could be borkered as well, but can I check that other than replacing the CPU with a working one?
Any suggestions on which proggies I can use from an Ubuntu Live CD to stress the CPU?