Chapter 1 – Asus H87-PLUS User Manual
Page 27

ASUS H87-PLUS
1-13
Chapter 1
•
In single VGA card mode, use the PCIe 3.0/2.0 x16_1 slot (yellow) 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.
IRQ assignments for this motherboard
VGA configuration
PCIe Express operating mode
PCIe 3.0/2.0 x16_1
PCIe 2.0 x16_2
Single VGA/PCIe card
x16 (single VGA recommended)
N/A
Dual VGA/PCIe card
x16
x4
A
B
C
D
E
F
G
H
PCIe x16_1
shared
–
–
–
–
–
–
–
PCIe x16_2
shared
–
–
–
–
–
–
–
PCIe x1_1
shared
–
–
–
–
–
–
–
PCIe x1_2
–
shared
–
–
–
–
–
–
PCI 1
–
–
–
shared
–
–
–
–
PCI 2
shared
–
–
–
–
–
–
–
PCI 3
–
shared
–
–
–
–
–
–
Intel SATA Controller
–
–
–
shared
–
–
–
–
Realtek LAN
–
–
shared
–
–
–
–
–
Intel xHCI
–
–
–
–
–
shared
–
–
Intel EHCI 1
–
–
–
–
–
–
–
shared
Intel EHCI 2
–
–
–
–
shared
–
–
–
HD Audio
–
–
–
–
–
–
shared
–