i sold my video card to my friend today, and when we hooked it all up, it didnt work. like, the power wouldnt go on. i check my power, and there was power so it wasnt that.

idk what happened =/

and the video card worked in my computer. and they are both agp comps

Was your friend using an AGP card or onboard video before?

If onboard video, has it been disabled in the machines bios? (Some machines will automatically disable the onboard video display when it "senses" an add-in card. Some won't, and it must be manually disabled.)

yes he had an AGP card in there. but thats not the problem. the computer doesnt even turn on. like it acts as if theres no power

And if you remove the card then there is power?

It is possible it is an AGP 2X motherboard on which an AGP 4X or 8X/4X will not run.

yeah i unplugged the card to see whats up. and it didnt work still wouldnt power on. and he tried it at his house, and the power still dont work

Was it working previously?

Does the PSU get power? Fan run?

yes it was working previously. he brought it to my house, we tried to turn it on but it didnt work. no nothing goes on.

If the PSU doesn't work then that is the first problem.

Re-seat the cord; verify the switch is on.

my friend bought a new PSU right now and he put it in retried it, and it didnt work.