hi, yami, thanks for your reply.
i was trying to install a raid card, then my harddisk crashed, so i tried to revive it by doing a windows restoration to an earlier time.
halfway leaving the windows restore running, the power button start blinking amber.
i changed the power supply and after that still see the power button blink amber.
eventually, it seems that there is no power at all after depressing the power button, no light at all.
another clue: i have a Nvidia graphic card and it seems that the fan is not running at all from the start the computer fail me.
Originally Posted by Yami
What were you upgrading, specifically? Were you touching anything? Was the system on when you were doing the upgrade?