Asus P5NT Motherboard Installation Guide - Page 38

1.8.6 Two PCI Express x16 slots This motherboard supports one PCI Express x16 graphics card or two SLI‑ready PCI Express x16 graphic cards that comply with the PCI Express specifications. The figure shows a graphics card installed on the PCI Express x16 slot. Install a rear chassis fan to the chassis (CHA_FAN) connector when using two graphics cards for better thermal environment. See page 1-32 for details. • In Single Card mode, only the PCI Express blue slot can be used for PCI Express x16 graphics cards. • In SLI mode, the PCI Express x16 slots work at the bandwidth of PCI Express x8. The combined bandwidth of these maintain the bandwidth of PCI Express x16. • See the table below for possible PCI Express card configurations. PCI Express x16 slot configurations EZ Selector setting PCIEX16_1 (blue) slot PCIEX16_2 (black) slot Single Video Card Card Type Speed Qualified PCIe x16 x16 graphics card Card Type Speed Qualified RAID or x1 LAN card SLI mode Dual Video Qualified SLI-ready x8 graphics cards Cards Multi-monitor, Qualified PCIe x16 x8 RAID or LAN graphics card setup Qualified SLI-ready graphics card Qualified PCIe graphics card, RAID or LAN card x8 x8, x4, x2, x1 1-24 Chapter 1: Product introduction