Just Shuts Off

[linearbit8]

So, my system just shuts off. Randomly. No BSOD. No freezing. No particular time. Windows 7 (64-bit) doesn't crash in safe mode, and I've been running Prime95 for the past 3 hours with no problem. I tried installing Fedora 16, but it shuts off during install. Same with the Windows 7 disc. I changed out processors, and windows went all twitchy. If the cpu is bad, would windows boot into safe mode running prime95? Would bad RAM cause this? I ran chkdsk /r and it reported no errors. I also uninstalled the realtek audio drivers and rebooted, still crashed. I then tried the latest version. Any other suggestions? Please help.





Biostar TA990FXE motherboard
AMD FX-6200 (Stock)
Corsair A70 Fan and Heat-sink
EVGA Geforce GTX285
8GB Visiontek Black Lable 1333Mhz RAM
Rosewill 850 watt Power Supply

 

[bruvvamoff]

So, my system just shuts off. Randomly. No BSOD. No freezing. No particular time. Windows 7 (64-bit) doesn't crash in safe mode, and I've been running Prime95 for the past 3 hours with no problem. I tried installing Fedora 16, but it shuts off during install. Same with the Windows 7 disc. I changed out processors, and windows went all twitchy. If the cpu is bad, would windows boot into safe mode running prime95? Would bad RAM cause this? I ran chkdsk /r and it reported no errors. I also uninstalled the realtek audio drivers and rebooted, still crashed. I then tried the latest version. Any other suggestions? Please help.





Biostar TA990FXE motherboard
AMD FX-6200 (Stock)
Corsair A70 Fan and Heat-sink
EVGA Geforce GTX285
8GB Visiontek Black Lable 1333Mhz RAM
Rosewill 850 watt Power Supply

It's possible that something is overheating and windows is auto shutting down to prevent hardware damage.
Download a probe like speedfan and see what's going on while the PC is running.

 

[linearbit8]

I can't even run windows in normal mode long enough to do anything like that. I don't think it's a heating issue since it was only on for a short period of time before it crashed.

 

[jsc]

The first thing I would do is try a different power supply.

 

[bartholomew]

+1 ^ Yeah, the PSU is most probably the problem here.

 

[bruvvamoff]

I guess you could try unplugging your graphics card to see if your PSU is failing. It won't be a difinitive test if it doesn't work but if it does work then it will be.

 

[bryonhowley]

I changed out processors, and windows went all twitchy

Are you sure the heatsink is seated properly? Did Windows get "twitchy" only after you changed out the CPU?

 

[linearbit8]

One problem. I don'd have a spare power supply. The heatsink is seated properly. And the twitching only happens when I switch out cpu's.

 

[linearbit8]

I've also been running prime95 in windows safe mode for 20 hours, with no crashing. Would a bad cpu do this?