the descrition for the motherboard said this:
ASUS has created, in its A8N32, a motherboard that will support some serious tweaking. With support for 4GB of DDR RAM, two 16-pipe PCI-E links with SLI, and an 8-Phase power design
so i assumed when it said 2 16 pipe it meant the video card ciouldnt be more than 16 pipelines. maybe i just read it wrong.