content: Dumb question Okay, so went over to the folks' place for the holiday, planned to watch a couple movies on their computer (a P4 dual core, 4 gigs DDR2 RAM, a Radeon half-height video card with half a gig, a single 500GB drive, blu-ray drive)... it's always been good for everything I've tossed at it (1080P YouTube, standard Blu-Ray).  I got there, tossed some SD YouTube at it, nothing spectacular, and was getting choppy video, tried streaming a movie (no questions as for the source), even choppier video.  Stepfather mentioned an ongoing problem (they forgot to mention)... BIOS reporting CPUfan error on boot/reboot.  I figured I'd take a look and see how dead it was (smokers apartment, not terribly unheard of happening).  Saw the fan was not spinning through the vents and opened it up.  Pretty much right away found the problem; the black (negative) on a four-pin fan connector was hanging loose.  Reached in to grab it to take a look at it, had to let go of it to get a better hold on it (part of the pin socket was broken off), it fell against the top edge of the RAM, and made a horrible chopping noise (couple times a second or so) until I swiped the wire off the RAM (while it touched the RAM, the fan spun up)... the setup is computer to TV via HDMI, either built-in TV speakers or RCA stereo outs to stereo receiver to 3.5 foot tall old stereo speakers.  Moved the HDD and video card to my old media center, started it up, didn't get any video across a couple cold boots.  Tried it in the Dell Optiplex, got video of BIOS on first boot which went to Windows 7 boot, then bluescreened, reset and got nothing.  Transplanted back into original machine and got nothing, even after CMOS reset.  My question, is: did something get completely borked in this whole thing?  I can build them a new(ish) machine (they don't need anything like mine... AMD 1090T, 16GB RAM, Radeon 7800's 2GB, six HDDs, BD burner) without putting even a dent in the bank, but don't want to order everything if someone has a better idea.  If anyone can tell me if this fried everything or give me some idea what might have happened, that would be awesome.  Thanks.