I own a Dell Precision 690 workstation. Yesterday it just went off suddenly in the middle but then it didnít turn on. No matter what I do, still I could not able to get it live and working. I have installed a new processor as well as the new power supply but still same problems appearing. The system starts up, fans run at real fast, I can see the BIOS POST screen saying Sata 0" and Drive4 not found. Then it runs for few seconds and immediately shuts down. Looks like it has gone into hibernation mode. I have double checked everything at start up but nothing appeared to be strange there. Anything else I should try?