9700 Pro AIW not working in new system.

[edro]

I just got a new motherboard (Asus K8N) and CPU (A64 3000+) and RAM... and when I go to put my Radeon 9700 Pro AIW in it, it powers up, then instantly powers off (less than a second).

If I do not connect the little floppy power cable to the Radeon, it powers up and gives a BIOS error telling me to connect the additional power cable. After I do that, it will not boot up (it does the power on/ power off thing).

2 other video cards work fine in it, but they do not require the extra power connector.

My gut tells me that the PSU is bad, although it is a brand new Antec case and 400W Antec PSU. (Almost every problem I have seen that concerns power, always ends in the PSU being bad)

What do you guys think?

 

[edro]

Thread @ Rage3d.com (14 Pages) explaining the problem.

Apparently the 9700 Pro AIW (and a few other cards) pull too much power from the PSU initially, making the PSU think there is a power fault or short somewhere, so the PSU shuts off immediately. Apparently, you either need to RMA the card and randomly get a "newer version", create a switch to turn on the power to your video card after 1sec. after boot, create a circuit to do it for you, or be sh|t our of luck...

This sucks.