23
2.6 Expansion Slots (PCI Express Slots)
There are 5 PCI Express slots on this motherboard.
PCIE slots:
such as a Gigabit LAN card, SATA2 card, etc.
graphics cards, or to install PCI Express graphics cards to support
CrossFireX
TM
or SLI
TM
function.
such as a Gigabit LAN card or SATA2 card, etc.
-
ics cards, or to install PCI Express graphics cards to support CrossFi-
reX
TM
or SLI
TM
function.
-
ics cards.
PCIE1 PCIE2 PCIE3 PCIE4 PCIE5
Single Graphics Card N/A x16 N/A N/A N/A
Two Graphics Cards in N/A x8 N/A x8 N/A
CrossFireX
TM
or SLI
TM
Mode
Three Graphics Cards in N/A x8 N/A x8 x4
3-Way CrossFireX
TM
Mode
1. In single VGA card mode, it is recommended to install a PCI Express
x16 graphics card in the PCIE2 slot.
2. In CrossFireX
TM
mode or SLI
TM
mode, please install the PCI Express
x16 graphics cards in PCIE2 and PCIE4 slots. Both these two slots
will work at x8 bandwidth.
3. In 3-Way CrossFireX
TM
mode, please install the PCI Express x16
graphics cards in PCIE2, PCIE4 and PCIE5 slots. PCIE2 and PCIE4
will work at x8 bandwidth, while PCIE5 works at x4 bandwidth.
when using multiple graphics cards for better thermal environment.
5. Only PCIE2 and PCIE4 slots support Gen 3 speed. To run the PCI
Express in Gen 3 speed, please install an Ivy Bridge CPU. If you
install a Sandy Bridge CPU, the PCI Express will run only at PCI
Express Gen 2 speed.
6. You can use PCIe ON/OFF Switch to enable and disable the
corresponding PCI Express x16 slots. Please refer to page 48 for
details.
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