ASRock Z97M OC Formula Quick Installation Guide - Page 20

Expansion Slots PCI Express Slots

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2.4 Expansion Slots (PCI Express Slots) There are 4 PCI Express slots on the motherboard. 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. PCIe slots: PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE2 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards. PCIE4 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width graphics cards. PCIe Slot Configurations Single Graphics Card Two Graphics Cards in CrossFireXTM or SLITM Mode PCIE1 x16 x8 PCIE3 N/A x8 PCIE4 N/A N/A For a better thermal environment, please connect a chassis fan to the motherboard's chassis fan connector (CHA_FAN1 or CHA_FAN2) when using multiple graphics cards. English 18

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18
English
2.4
Expansion Slots (PCI Express Slots)
°ere are 4 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 x1 slot) is used for PCI Express x1 lane width cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
PCIE4 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width graphics cards.
PCIe Slot Configurations
PCIE1
PCIE3
PCIE4
Single Graphics Card
x16
N/A
N/A
Two Graphics Cards in
CrossFireX
TM
or SLI
TM
Mode
x8
x8
N/A
For a better thermal environment, please connect a chassis fan to the motherboard’s chassis
fan connector (CHA_FAN1 or CHA_FAN2) 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.