ASRock B550M/ac User Manual - Page 34

Expansion Slots PCI Express Slots

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B550M/ac 2.4 Expansion Slots (PCI Express Slots) There are 3 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 4.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE2 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards. PCIe Slot Configurations Ryzen Series CPUs (Matisse) PCIE1 Gen4x16 PCIE2 Gen3x1 PCIE3 Gen3x4 Ryzen Series CPUs (Renoir) Gen3x16 Gen3x1 Gen3x4 For a better thermal environment, please connect a chassis fan to the motherboard's chassis fan connector (CHA_FAN1/WP, CHA_FAN2/WP , CHA_FAN3/WP or CHA_ FAN4/WP ) when using multiple graphics cards. English 27

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English
27
B550M/ac
2.4
Expansion Slots (PCI Express Slots)
°ere are 3 PCI Express slots on the motherboard.
PCIe slots:
PCIE1 (PCIe 4.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards.
PCIe Slot Configurations
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.
PCIE1
PCIE2
PCIE3
Ryzen Series CPUs (Matisse)
Gen4x16
Gen3x1
Gen3x4
Ryzen Series CPUs (Renoir)
Gen3x16
Gen3x1
Gen3x4
For a better thermal environment, please connect a chassis fan to the motherboard’s
chassis fan connector (CHA_FAN1/WP, CHA_FAN2/WP , CHA_FAN3/WP or
CHA_
FAN4/WP ) when using multiple graphics cards.