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2.4 Expansion Slots (PCI Express Slots)
here are 5 PCI Express slots and 1 mini-PCI Express slot 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.
mini-PCIe slots:
MINI_PCIE1 (mini-PCIe slot) is used for WiFi module.
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 x8 lane width graphics cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width cards, such as
hunderbolt™ add-in card.
PCIE4 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE5 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
PCIe Slot Conigurations (For CPU with 40 PCIe lanes)
Single Graphics Card
Two Graphics Cards in
TM
CrossFireX
or SLI
Mode
hree Graphics Cards in
TM
3-Way CrossFireX
Mode
TM
or 3-Way SLI
Mode
Four Graphics Cards in
TM
4-Way CrossFireX
Mode
TM
or 4-Way SLI
Mode
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.
PCIE1
PCIE2
x16
N/A
TM
x16
N/A
x8
x8
x8
x8
X99 OC Formula
PCIE3
PCIE4
PCIE5
N/A
N/A
N/A
N/A
x16
N/A
N/A
x16
N/A
N/A
x8
x8
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