On 11/14/2010 05:25 PM, compdoc wrote: > Unless you have old cards you have to retain, PCI-x isn't useful anymore. > Too slow. Supermicro X8SAX: 2 (x16) PCI-Express 2.0, 1 (x4) PCI-Express (using X8 slot), 2x 64-bit 133/100MHz PCI-X, 1x 32-bit PCI Slots I put the video and the RAID card in the PCI-e slots. I use the PCI and PCI-x for things like parallel port cards, which cost double for PCI-e. -T