ASRock Z87 Extreme9__ac - Manual (Page 28)

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Z87 Extreme9/ac
2.4 Expansion Slots (PCI and PCI Express Slots)
There are 6 PCI Express slots and 1 mini-PCI Express slot on the motherboard.
PCIe slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
PCIE4 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
PCIE5 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE6 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
mini-PCIe slots:
MINI_PCIE1 (mini-PCIe slot) is used for WiFi + BT module.
PCIe Slot Configurations
PCIE1 PCIE2 PCIE3 PCIE4 PCIE6
Single Graphics Card N/A x16 N/A N/A N/A
Two Graphics Cards in
CrossFireX TM or SLI TM
Mode
x16 N/A N/A x16 N/A
Three Graphics Cards in
3-Way CrossFireX TM Mode
or 3-Way SLI TM Mode
x16 N/A x8 x8 N/A
Four Graphics Cards in
4-Way CrossFireX TM Mode
or 4-Way SLI TM Mode
x8 N/A x8 x8 x8
For a better thermal environment, please connect a chassis fan to the motherboard’s chas-
sis fan connector (CHA_FAN1, CHA_FAN2 or CHA_FAN3) when using multiple graphics
cards.
Before installing an expansion card, please make sure that the power supply is switched off
or the power cord is unplugged. Please read the documentation of the expansion card and
make necessary hardware settings for the card before you start the installation.