6600GT Dead?

Hey! Just got my new fandangled 6600GT...

Its the Gigabyte silent pipe one with vivo (agp)

All was going well, no hicups during installation.. games playing awesome..

So, i decided to test HDR in farcry..

Jump in, ramp up the graphics, play for 30 seconds.. computer turns off, dead...

Push the button.. nothing.. pull out the power, plug it back in.. a blink of light.. dead..

So i did waht i always read hexus people say to do, un plug everything except ram cpu and graphics.. nothing.. unplug the extra power thingy, it all fires up... turn off the computer, plug the power thingy in, it doesnt work..

So I tried the graphics card in a difffernt computer, same story...

What should I do?

Whats the extra power thingy? To plug into your gpu? Or your motherboard? What power supply are you using?

What PSU brand/rating do you own?

A thermaltake 420w silent purepower..

And the extra power thingy is the plug that goes into the graphics card from the psu..

RMA the card, it's obviously quite buggered.

back to my 9600 pro then :'(

HDR was sooo pretty (if a tad slow)

unplugging the card, and reinstall it and see what happens

It has been unplugged, It has been to another computer.. its been to the shop i got it from, and is currently being replaced :)