The primary PCI Express x16 slots support PCI Express x16 graphics cards that comply with the PCI Express specifications.
Universal PCI Express x16 slots (max. x8 mode)This motherboard also supports universal PCI Express x16 slots with a maximum speed of 8 GB/s. The operating frequency of this slot changes, depending on the type of PCI Express card you install. Refer to the table below for details.
If you install multiple VGA cards, we recommend that you plug the rear chassis fan cable to the motherboard connector labeled CHA_FAN1/2 for better thermal environment. See page
VGA configuration
Single VGA/PCIe card
Dual VGA/PCIe card
Triple VGA/PCIe card
Quad VGA card
| PCI Express operating mode |
|
| |
PCIex16_1 | PCIex16_2 | PCIex16_3 | PCIex16_4 | |
x16 | x1 | x16 | x1 |
|
x16 | x1 | x16 | x1 |
|
x16 | x1 | x8 | x8 |
|
x8 | x8 | x16 | x1 |
|
x8 | x8 | x8 | x8 | |
|
|
|
|
|
•When using one VGA card and a x4 PCIe card at the same time, install them to the blue slots.
•If you install two VGA cards to the blue slots and use other x4 PCIe cards simultaneously, the x4 PCIe cards will downgrade to x1 mode for optimum VGA performance. You may reassign PCIe width in BIOS settings. Refer to page
ASUS |