Problem with ati 4890

[Jake0]

Hey guys,

I've recently bought an ati 4890, it had been playing fine for about 3 days.. when suddenly today the pc wont boot up.

The card seems to go through it's normal post/start up process over and over ie:

the 3 red lights flash, fan goes on full.. then slows down.

Then happens about 3-4 times before the pc beeps in anger. And no display what so ever.

Any ideas if this is a broken psu or card, or anything else?

Help GREATLY appreciated.

Cheers.
(p.s running a pretty crappy(and 1-2years old) oryxx 750w psu)

 

[Jake0]

Thanks for the replys guys. I upgraded from an 8800gtx. If I plug the 8800gtx back in, the pc boots fine(haven't tried playing though as it's basically dead) so it's somthing up with the card ati itself or power drawing wise.