I've got a X800 XL in my box (AGP) that requires its own plug from the power supply. A long time ago, I used to have a problem where when I reboot it would shout that my video card didnt have the power plugged in, even if it did. This problem went away (seemingly by itself) -- the workaround when it happened was to just turn off the PSU, unplug the video card, replug the video card, and turn the PSU back on.
Last night, I was in the middle of playing a game and the screen went black. Restarted a few times and it wouldn't boot into windows. Let it go. Woke up this morning and checked, and now device manager is saying that my "device cannot start" and right-click display shows "Default Monitor on " with no video card listed. I'm worried -- its a $300 video card and it's spring break -- I won't be able to play video games.
I have a 420W PSU, with 2 magnetic, 2 optical, plug for video card, 3 plugs for case fans.. some of its daisy chained together and I don't know for sure if the PSU is enough .. I tried unplugging all the case fans, and still a problem..
Any idea what this could be? It doesn't really seem like I cooked the video card, although I could have.