Okay, so I was on my PC yesterday, just browsing the tubes -- nothing out of the ordinary. Out of nowhere it just froze, so I hit the reboot switch on my case and waited for it to boot up. Then I got the message "DISK BOOT FAILURE, PLEASE INSERT SYSTEM DISK AND RESTART" or something along the lines of that. So I rebooted and went into the BIOS and none of my SATA drives were being detected. Two HDDs and two ROMs, none of them are detected anymore.