Asus B450M-A/CSM User Manual page 13

• For Ryzen processors
TM
PCIEx16_1
PCIEx1_1
PCIEx1_2
M.2
APU USB3.1 Gen 1 XHCI
controller
AMD Promonotry Chip
XHCI controller
SATA controller
HD audio controller
Realtek LAN controller
When using PCI cards on shared slots, ensure that the drivers support "Share IRQ" or that
the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
ASUS PRIME A320M-K
A B C
– – –
shared – –
– – –
shared – –
– – –
shared – –
– shared –
– – –
– – shared
D E F
– – –
– – –
shared – –
– – –
– – –
– – –
– – –
shared – –
– – –
G H
shared –
– –
– –
– –
– shared
– –
– –
– –
– –
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