My two-year old Dell Dimension 2400 died three days ago in the middle of computing -- The notorious blue screen appeared and saying physical memory is dumped. When I tried to reboot, it says 'primary hard drive disk 0 not found'.
In BIOS it says 'hard drive (device unknow)'. I did not do any thing to the hardware recently. It seems quite a lot of people experienced similar problem , but I just could not find a good solution (or maybe I should have spent days garner the information from the internet).