ASRock Fatal1ty X370 Professional Gaming User Manual - Page 33
Expansion Slots (PCI Express Slots), PCIe Slot Configurations
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Fatal1ty X370 Professional Gaming Series 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 2.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards. PCIE4 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE5 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width graphics cards. * If PCIE5 slot is occupied, M2_2 will be disabled PCIe Slot Configurations Single Graphics Card PCIE2 x16 PCIE3 N/A Two Graphics Cards in CrossFireXTM or SLITM x8 x8 Mode 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 25
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