ASROCK B450M-HDV R4.0 - 2.4 Expansion Slots (PCI Express Slots)

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2.4 Expansion Slots (PCI Express Slots)
ere are 2 PCI Express slots on the motherboard.
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.
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 PCIE2
Ryzen Series CPUs (Pinnacle Ridge) x1 x16
Ryzen Series CPUs (Summit Ridge) x1 x16
Ryzen Series CPUs (Raven Ridge)
x1 x8
Athlon 2xxGE series APU x1 x4