Windows 10: how do i make it so my computer never ever reboots overnight?

Numerical amount regarding work I lost this morning since my computer rebooted itself last night was tons.

:)

 

Freeze and reboot problems

think so? it does seem like it could be video related, the computer stutters when im playing sometimes when im multi-tasking. i upped the page file and it does it less now, but it only reboots itself when the video is more intensive. it runs nights on end with utilities or something running on the desktop overnight. Ill take the video card advice and purchase a new one i think unless someone can suggest an alternative.

 

Freeze and reboot problems

Dont purchase a new one.
Check that the problem was caused by your video card for sure.

Do what jock suggested by cleaning it etc before jumping to any conclusions and possibly wasting money.

 

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?