PC help

OK, so...I just got a new PC. Specs are all good- Dual 9800 GTs, 4 GB DDR2 RAM, 3.0Ghz Core 2 Duo, the works.
Now, the problem is, whenever I boot the thing up, the second graphics card doesn't read. The guy who set it up for me claimed it was a problem with the power supply. Is this accurate?
(Also, I have an Asus motherboard, if fucking with the BIOS can help in any way)
Thanks in advance.

Well, what is the power supply? Are you sure he installed the SLI bridge?

Btw, why'd you get dual 9800 GT's? From what I understand, it's not much better than dual 8800 GT's. Could've saved some money...

It could be the Power Supply. The second card may not A) be plugged in, or B) have enough juice)

If you know the guts of your pc, try poking around in it, make sure all cables seem to be in the right place.

"Well, what is the power supply? Are you sure he installed the SLI bridge?

Btw, why'd you get dual 9800 GT's? From what I understand, it's not much better than dual 8800 GT's. Could've saved some money..."

Bump.