Computer turns on, fan revs, no display
Hi, my friend has a problem with his computer.
"After over a year of my PC working perfectly, overnight something seems to have rendered it totally unuseable.
When I turn on the computer, everything seems fine but there's no response from the monitor, as if the computer is turned off. Any help would be appreciated. The problem definitely isn't my monitor, I just tried a different monitor and the same thing happens. Also, the second I plug my computer in to a mains socket, it just switches itself on automatically."
He said it still beeps (which is post isnt it) so it isnt ram or cpu?
Any help is appreaciated.
Thanks
"After over a year of my PC working perfectly, overnight something seems to have rendered it totally unuseable.
When I turn on the computer, everything seems fine but there's no response from the monitor, as if the computer is turned off. Any help would be appreciated. The problem definitely isn't my monitor, I just tried a different monitor and the same thing happens. Also, the second I plug my computer in to a mains socket, it just switches itself on automatically."
He said it still beeps (which is post isnt it) so it isnt ram or cpu?
Any help is appreaciated.
Thanks
0
Comments
For the power supply you could try a different one to see if it makes any difference. I would suggest the Video card first though because it is easier to do.
Was there a power surge or anything preceeding this problem?
also, try taking everything out except for cpu/ram/vid card and see if it will post then.
We then tried it with onboard graphics, sure enough, it booted, did the same thing, but this time after the beep we were greeted with the bios screen. It then went into Windows (Vista Home) and began searching for "problems", it then repared the "problem" and rebooted. Now it works fine (using onboard graphics). Once it was booted, i pulled out the cable and switched to the graphics card graphics and sure enough no screen. I put it back in the onboard, and we had a screen but it was asking to install drivers. We installed the drivers and then put it back into the graphics card graphics but still no screen.
Now we took the graphics card. started it up and it instanly went to the bios then loaded Windows perfectly and it works fine now. Basically the graphics card is broken. Its an 8600GT.
I took the 8600GT home to try it in my computer, just to make sure its not just his computer, and predictably it did the same this, just ran revving then stopping then revving etc.
Proir to putting it in my pc I took the heatsink cover off and discovered alot of dust walls clogging the metal fins. Im guessing the graphics card has overheated and now is borked. Anyway, looks like we found the problem.