HIS Radeon HD 7770 Problems

Okay so I just bought this card the other day and tried it in my PC tonight (Dell XPS420).

The only thing that happens is the fan spins for a second and then turns off, obviously I get no display images, but all the little boot up sounds and Windows sound come on.

On the box it recommends a 450w power supply, however I believe my power source is only 430w, which from what I read and my setup should not be any problem. I tried my HIS 4670 with a grinding fan and a HD 2400 Pro; both of which worked.

I also downloaded the new drivers, ATI Catalyst: 12.3, and installed them.

Otherwise I guess I got a DOA card??? This seems almost impossible for me to believe.

If all the connectors are in place, then I would tend to believe that the card IS defective.
Doesn't the 7770 require more connectors than come with the stock PSU in your Dell?

Ditto to what the previous poster said. If all the connectors are in place, you should at least be getting 2d video booting into windows. Drivers should be irrelevant to getting video during the boot process.

Power connector plugged into the back of the card?

Quote from RockySosua : If all the connectors are in place, then I would tend to believe that the card IS defective. Doesn't the 7770 require more connectors than come with the stock PSU in your Dell?

No I have a cable connector to attach to it in both PCs. I know it sat overnight in freezing temps and then in warm temps, not that it should matter.


Thanks for the help anyways.

Quote from Milstar : No I have a cable connector to attach to it in both PCs. I know it sat overnight in freezing temps and then in warm temps, not that it should matter. Thanks for the help anyways.

Two PC's?
I'm lost.
If you have two PC's, does the GPU work in either?
Are there two PSU connectors on your 7770, and if so, does your present PSU have two to connect to it? (see attachments}
I have a 5770 here that requires two of the connectors like in the attached pix, but I don't know if yours has them too.
If it does and you haven't connected them, that would explain why the card doesn't work.