ASRock X99 OC Formula User Manual - Page 25

Expansion Slots PCI Express Slots

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X99 OC Formula 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) PCIE1 PCIE2 PCIE3 Single Graphics Card x16 N/A N/A PCIE4 N/A PCIE5 N/A Two Graphics Cards in CrossFireXTM or SLITM Mode x16 N/A N/A x16 N/A hree Graphics Cards in 3-Way CrossFireXTM Mode x8 or 3-Way SLITM Mode x8 N/A x16 N/A Four Graphics Cards in 4-Way CrossFireXTM Mode x8 x8 N/A x8 x8 or 4-Way SLITM Mode For a better thermal environment, please connect a chassis fan to the motherboard's chassis fan connector (CHA_FAN1, CHA_FAN2 or CHA_FAN3) when using multiple graphics cards. 19 English

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19
English
X99 OC Formula
2.4
Expansion Slots (PCI Express Slots)
Here are 5 PCI Express slots and 1 mini-PCI Express slot on the motherboard.
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 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
N/A
x16
N/A
Hree Graphics Cards in
3-Way CrossFireX
TM
Mode
or 3-Way SLI
TM
Mode
x8
x8
N/A
x16
N/A
Four Graphics Cards in
4-Way CrossFireX
TM
Mode
or 4-Way SLI
TM
Mode
x8
x8
N/A
x8
x8
³or a better thermal environment, please connect a chassis fan to the motherboard’s chas-
sis fan connector (C´A_³AN1, C´A_³AN2 or C´A_³AN3) when using multiple graphics
cards.
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.