[Alneyan]

For what it's worth, I occasionally have lock-ups that force a hard reboot, but I cannot detect my CD/Harddrives or enter the Bios after these sorts of crash. I simply have to shut down the computer and restart it to go back to normal.

I'm not quite sure why it is so, though I have my own idea. One of these days, I guess I'll have to open up the case and try to take care of it... but I'm not really on speaking terms with the hardware part of a computer.