Computer reboots randomly

[guwangeowns]

New to the forums here, at least posting wise.
Finally made a account lol.
just wondering one of the computers in my office at work reboots all the time sometimes it runs for hours sometimes but a few seconds.
goes black screen (no signal) then reboots.
I've had it happen anywhere from a few times in a day to 20 30+ times in a day seems to be whening i'm on the internet browsing a web page but not quiet sure it happens all the time all day long.

any suggestions as to what i can do? ive tried reinstall drivers.

 

[Law]

Could be due to a bad power supply. Which would be the first thing I check if computers randomly reboots. Over heating, some faulty hardware, also viruses can reboot your system.

 

[superdave1984]

You might try chkdsk /r to see if your hard drive has errors. A repair install may be in order.

 

[killians45]

disable auto reboot after error and when it happens again, wont reboot instead will give you an error that we can work with.

 

[turtile]

Sounds like an overheating video card.

 

[guwangeowns]

thx alot guys i went threw some of the stuff got my psu from my desktop at home and tried the psu right after i posted.
ended up trying my video card after reading the suggestions.
it was the video card.
so ordered a new cheapo for the work comp.
thx alot guys for the help.