I was playing Cod4 when my screen turned off and my computer started resetting, no delay in between the cycles. The fans were spinnning up and going silent each cycle and I could hear the bass going off, as it does when the computer is turned off or on. I tried to shutdown, but was unable to, so I cut the power at the wall. When I tried to start up again everything turned on, but no signal was detected. I got an electrical smell and immediately turned the PC off. After some limited testing I have concluded that the PSU is still operational but the Graphics card is fried. The computer will now start and stay on, but without a graphics card I am unable to see if it posts. There are no error noises on startup. All fans and HDD's appear to still be working.
Any ideas on what would cause this? Should I be replacing the PSU regardless?
Vista Ultimate SP1 X64
Core 2 Duo E8400@3750mhz
G-skill DDR 1066@ 1100mhz
1x500gb Seagate SATA
1x1tb Seagate SATA;
Vantec ION2+ 500W
Computer was running fine for 3 months prior to this incident.
Cpu was at 38 degrees idle, and up to 58 under 100% load.
GPU was at 50 idle, and up to 75 under load.
Yep, another cheap PSU took a companion with it into the nether regions. Antec, Corsair, PC Power & Cooling, Seasonic, and Enermax are among the decent brands. Look for full range active PFC (no little voltage switch) and 80+ certification.
An electrical smell?
I dont thing the GPU is fried.
Must be the DC cable going to the GPU Card that is fried.
Try replacing the PSU.
Even cheap PSUs have a safety mechanism and will not necessarily harm stuff attached to them when they die . . .
A PRIME example of a person thinking he can get away with a cheap PSU.
-Now instead of buying a real PSU in the first place, you will have to replace the PSU AND buy a graphics card. I hope you learned your lesson and hopefully others will learn from these kinds of mistakes, because when a cheap PSU goes down, nothing will stop it from taking half your computer down with it. Get a decent brand name PSU: Coolermaster, Corsair, Seasonic, PCP&C...etc
Oh and I highly recommend getting a UPS (Uninterupptable Power Supply), because a power outage can also end your PC, a UPS will keep it on for 10-20minutes so you have enought time to turn it off safley or hibernate it.