ASUS PRIME B250-PLUS
1-5
•
In single VGA card mode, use the PCIe 3.0 x16_1 slot (gray) for a PCI Express x16
graphics card to get better performance.
•
We recommend that you provide sufficient power when running CrossFireX™ mode.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when
using multiple graphics cards for better thermal environment.
•
When an M.2 device in PCIe mode is installed onto the M.2_1 socket, PCIe x16_2 slot
only runs at x1 mode.
PCI Express 3.0 x1 slots
This motherboard has two PCI Express 3.0 x1 slots that support PCI Express x1
network cards, SCSI cards, and other cards that comply with the PCI Express
specifications.
IRQ assignments for this motherboard
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.
A
B
C
D
E
F
G
H
HD Audio Controller
shared
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–
–
–
–
–
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XHCI Controller
shared
–
–
–
–
–
–
–
SATA Controller
shared
–
–
–
–
–
–
–
LAN Controller
–
shared
–
–
–
–
–
–
PCIex16_1
shared
–
–
–
–
–
–
–
PCIex16_2
shared
–
–
–
–
–
–
–
PCIex1_1
shared
–
–
–
–
–
–
–
PCIex1_2
–
–
shared
–
–
–
–
–
M.2_1
shared
–
–
–
–
–
–
–
M.2_2
shared
–
–
–
–
–
–
–
ASM1083
–
–
–
shared
–
–
–
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