Sorry for the late response, been real busy with exams this week.

There's nothing "funny" with my setup of hardware, there's two SATA HDD's connected directly to the controller on the main board. The mainboard is a VIA K8T Neo, and my prosessor is an AMD 3200+. Memory: unknown crappy 1GB Ram.

I don't exactly know what's failing, but when the computer freezes the usage of CPU is set to 100%, don't understand how, though. The exact same thing happened to me about one year ago, but I had all my files backed up back then. Could it be a software-related problem? Anyways, I recall having a problem finding my second hdd in windows when installing it, I don't remember how that got solved. Never had any problems finding the first hdd, though.

Thanks for all your help so far, and I'm really sorry about not being able to explain the situation better than this. My knowledge is very limited.