help!!! i think i fried my hdd. i hope im wrong. i just fixed my computer by reinstalling the OS. now i went to plug a fan back in and unpluged my hdd while the comp was on. i pluged it back in wrong and there was a small whiteish spark that came from the four pin connector. did i fry it by pluging it in backwards. i will try using the sata power cable instead of 4 pin to see if that works. but now my comp wont start up. it askes for system disk. and does not show a hdd in bios. and i screwed???