ASRock X99 Extreme4 User Manual - Page 23

Expansion Slots PCI Express Slots

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X99 Extreme4 2.4 Expansion Slots (PCI Express Slots) here are 5 PCI Express slots on the motherboard. Before installing an expansion card, please make sure that the power supply is switched of 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. PCIe slots: PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE2 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width cards. PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE4 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE5 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards. * If M.2 PCI Express module is installed, PCIE5 will be disabled. PCIe Slot Conigurations (For CPU with 40 PCIe lanes) Single Graphics Card PCIE1 x16 PCIE2 N/A PCIE3 N/A PCIE4 N/A PCIE5 N/A Two Graphics Cards in CrossFireXTM or SLITM Mode x16 N/A x16 N/A N/A hree Graphics Cards in 3-Way CrossFireXTM Mode x16 N/A x16 N/A x8 or 3-Way SLITM Mode English 17

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17
English
X99 Extreme4
2.4
Expansion Slots (PCI Express Slots)
Here are 5 PCI Express slots on the motherboard.
PCIe slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE4 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE5 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
* If M.2 PCI Express module is installed, PCIE5 will be disabled.
PCIe Slot Con±gurations (For CPU with 40 PCIe lanes)
PCIE1
PCIE2
PCIE3
PCIE4
PCIE5
Single Graphics Card
x16
N/A
N/A
N/A
N/A
Two Graphics Cards in
CrossFireX
TM
or SLI
TM
Mode
x16
N/A
x16
N/A
N/A
Hree Graphics Cards in
3-Way CrossFireX
TM
Mode
or 3-Way SLI
TM
Mode
x16
N/A
x16
N/A
x8
Before installing an expansion card, please make sure that the power supply is switched oF
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.