The bios inits, than nice progressbar fills, telling me its checking the disks. After its done it tells me both disks are ready to use, begins booting the os (which isnt there) and hangs on a blinking cursor.
If i physically remove one drive, at this check point, it gives me a "disk array failure" message, and the option to press cntl-f to configure raid.
So i suspect the data on the disk is messed, not the raid controller.
Ah, i recall, before the system died it gave a number of BSOD's and eventually hang on a distorted screen...

edit:
its two 1TB drives. I also thought of using dd to backup the disks enterely, but we do not have enough empty diskspace available...