P5N32-E SLI won't post with its sound card installed!!!

[Dano]

Hi guys
My ASUS P5N32-E SLI won't POST when I installed the ASUS Supreme-FX sound card (which came with the package). When I took the sound card out, the PC works fine. As a result I am using a creative USB sound blaster instead.
Anyway, can any one tell me what is going wrong with this MB or it was the sound card?
Cheers

[Jay]

thats odd.

Are you sure its inserted all the way?

Did you put all the motherboard standoffs in the correct places?

[Dano]

...Are you sure its inserted all the way??

Yes, I have tried a couple of times, the sound card was firmly pressed into the slot.

Did you put all the motherboard standoffs in the correct places?

Nop, I had some problems with the screws and the standoffs, as a result I was only able to install 7/9 standoffs. Do you think the MB wasn't properly grounded? But the MB works fine apart from the sound card part.