I installed a new video card and power supply in a new desktop computer, but the machine had problems (restarting occasionally for no obvious reason over a few weeks) and now the card seems dead. I need help figuring out what has gone wrong!
The machine is an HP Pavilion Elite H8-1010. I bought a new video card (radeon 6850
) and power supply (Corsair TX650 V2
) and installed them, after verifying that the machine was functional with the old ones. It's running Windows 7. I installed the drivers from the disk provided with the video card.
Things were fine for a few weeks, then I'd notice that the machine had restarted while I was not using it. I re-enabled the blue screen of death to make sure it was not crashing, loaded up speedfan to verify that it wasn't overheating, then installed Prime 95 and just let it sit, stress testing, for a few hours, and nothing happened.
Then today, it started restarting more and more. After four hours of use, it restarted. Use in this case can mean text based MUDs (yeah, yeah) or just sitting idle. Then after thirty more minutes of use, it restarted again. Then it at that point, the graphics seemed to cease to function and it would restart after a minute of loading windows. You can hear the windows startup sound, but the monitor claims there is no input from the graphics card. And that's the state it's in now.
I put the old card back in and it worked fine, for whatever that's worth.
I am at a loss. Is the new card just a dud? Is there some bad interaction between the card and the PSU? I am pretty good at fixing things if I know what is wrong, but I'm not really sure where to start with this one.
Snowflake details: These are both japanese components, but the machine is from America. The PSU claims it can take any AC input from 90~264V, so I didn't think that would be a problem. The machine is receiving 120V as input.