I have an iMac that seems to panic at random and just turn off. I've reinstalled the OS. Took it to the shop and they've replaced the following:
661-4670 Power Supply, 180W
661-4673 Card, Video, ATI Radeon HD 2400XT
922-8188 Cable, DC, Power Supply/SATA/Inverter
I'm still getting random crashing. I've ran a file system check (fsck -fy) twice. Would you guys know of anything else I should try?