ASRock X79 Extreme7 - Manual (Page 18)

18
ASRock X79 Extreme7 Motherboard
English
2.4 Expansion Slots (PCI and PCI Express Slots)
There is 1 PCI slot and 5 PCI Express slots on this motherboard.
PCI slot: PCI slot is used to install expansion cards that have the 32-bit PCI
interface.
PCIE slots: PCIE1 / PCIE2 / PCIE3 / PCIE4 / PCIE5 (PCIE 3.0 x16 slots) are used
for PCI Express graphics cards.
PCIE Slot Confi gurations
PCIE1 PCIE2 PCIE3 PCIE4 PCIE5
Dual Graphics Cards in x16 x0 x16 x0 N/A
CrossFireX TM or SLI TM Mode
Triple Graphics Cards in x16 x0 x16 x0 x8
3-Way CrossFireX TM or
3-Way SLI TM Mode
Five Graphics Cards x8 x8 x8 x8 x8
1. In single VGA card mode, it is recommended to install a PCI Express
x16 graphics card on PCIE1 slot.
2. In CrossFireX TM mode or SLI TM mode, please install PCI Express x16
graphics cards on PCIE1 and PCIE3 slots. Therefore, both these two
slots will work at x16 bandwidth.
3. In 3-Way CrossFireX TM or 3-Way SLI TM mode, please install PCI
Express x16 graphics cards on PCIE1, PCIE3 and PCIE5 slots.
Therefore, both PCIE1 and PCIE3 will work at x16 bandwidth, while
PCIE5 works at x8 bandwidth.
4. If you install fi ve PCI Express x16 graphics cards on PCIE1, PCIE2,
PCIE3, PCIE4 and PCIE5 slots, these fi ve slots will work at x8
bandwidth.
5. Please connect a chassis fan to motherboard chassis fan connector
(CHA_FAN1, CHA_FAN2 or CHA_FAN3) when using multiple
graphics cards for better thermal environment.
6. Currently Intel ® Socket 2011 Sandy Bridge-E Processor doesn’t
support PCIE 3.0, but this motherboard is already PCIE 3.0 hardware
ready. It depends on Intel’s CPU to enable PCIE 3.0. Please check
Intel’s website for information on future CPU updates and releases.