ASRock Z270 SuperCarrier User Manual - Page 28
Expansion Slots (PCI Express Slots), PCIe Slot Configurations
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2.4 Expansion Slots (PCI Express Slots) There are 5 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 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards PCIE3 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards. 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 Configurations Single Graphics Card PCIE1 x16 PCIE2 N/A PCIE4 N/A Two Graphics Cards in CrossFireXTM or SLITM x16 N/A x16 Mode Three Graphics Cards in CrossFireXTM or SLITM x8 Mode x8 x16 Four Graphics Cards in CrossFireXTM or SLITM x8 x8 x8 Mode PCIE5 N/A N/A N/A x8 English 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. 22
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