Accidentally swapped the power switch and power button LED connectors on the motherboard, and after fixing it, it only turns on for a tenth of a second, then turns off. Is the PSU fried?
UPDATE: I discovered that the PSU was busted in some way, and installed a different one, and it works just fine now. Thanks for all the replies.
UPDATE: I discovered that the PSU was busted in some way, and installed a different one, and it works just fine now. Thanks for all the replies.