I recently installed a new hard disk because I had no space left.
It's 80 GB extra space I got now, that makes 160 GB. The same sort of hard disk wich came with the pc. But when I connect to a JA server ( also battlefront, and every heavy game) my pc crashes and then restarts when I am in the server for about 5 seconds. I think it's the new hard disk, but I already took it out, and tried again, it still crashed. I really have no idea what it is, but I guess it's overheated?
are all your drivers up to date?