ASROCK B550 Phantom Gaming-ITX/ax - Expansion Slots and Jumpers; PCI Express Slot Configuration

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B550 Phantom Gaming-ITX/ax
2.4 Expansion Slot (PCI Express Slot)
ere is 1 PCI Express slot on the motherboard.
PCIe slots:
PCIE1 (PCIe 4.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIe Slot Congurations
Before installing an expansion card, please make sure that the power supply is
switched o 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
Ryzen Series CPUs (Matisse) Gen4x16
Ryzen Series APUs (Renoir) Gen3x16
For a better thermal environment, please connect a chassis fan to the motherboard’s
chassis fan connector (CHA_FAN1/WP) when using multiple graphics cards.