Windows 10: PC Randomly Reboots with no BSOD sometimes at idle sometimes under load

My PC has recently started randomly restarting. I've made no hardware or software changes recently apart from updating windows. When it reboots, it goes into a boot error screen from the BIOS and gives me the option to either enter BIOS setting or "load optimised defaults and reboot". I've reset all defaults on the MOBO and error still occurs. I updated BIOS to latest release and error still occuring. Will often do it in waves - 3 or 4 times in a row then won't do it again for a few days. Initially it only occured when idle, I disabled C8 and C10 states however this didn't fix the issue. Turn

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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?

 

PC Randomly Reboots

Just recently, my PC started to randomly reboot, to start it was once every other day, and know every few minutes.
Any suggestions to rectify this problem would be greatly appreciated.

 

BSOD when idle

I have been having randomly restarts when my pc is idling. According to windg is it a DRIVER_POWER_STATE_FAILURE BSOD.

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