Chapter 1 – Asus Z87-WS User Manual
Page 32
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Chapter 1: Product introduction
Chapter 1
•
We recommend that you provide sufficient power when running CrossFireX™ or SLI™
mode.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN1-4 when
using multiple graphics cards for better thermal environment.
•
We recommend you connect an EATX 12V_1 cable when running CrossFireX and
SLI.
IRQ assignments for this motherboard
Slot
no.
PCIe Express 3.0 operating mode
Single VGA
SLI
CrossFireX
3-WAY SLI
CrossFireX
4-WAY SLI
CrossFireX
1
x16
(single VGA recommended)
x16
x8
x8
2
—
—
x8
x8
4
—
x16
(dual VGA
recommended)
x16
x8
6
—
—
—
x8
A
B
C
D
E
F
G
H
PCIe x16_1
shared
–
–
–
–
–
–
–
PCIe x16_2
shared
–
–
–
–
–
–
–
PCIe x16_3
shared
–
–
–
–
–
–
–
PCIe x16_4
shared
–
–
–
–
–
–
–
PCIe x1_1
–
–
–
shared
–
–
–
–
PCIe x1_2
shared
–
–
–
–
–
–
–
Marvell 9230
shared
–
–
–
–
–
–
–
ASM1061
–
shared
–
–
–
–
–
–
VIA1394
–
–
shared
–
–
–
–
–
USB 3.0
–
–
–
–
–
shared
–
–
LAN1 (I210)
–
–
shared
–
–
–
–
–
LAN2 (I210)
–
–
–
shared
–
–
–
–
SATA Controller 1
–
–
–
–
shared
–
–
–
SATA Controller 2
–
–
–
–
shared
–
–
–
USB 2.0 Controller 1
–
–
–
–
–
–
–
shared
USB 2.0 Controller 2
–
–
–
–
shared
–
–
–
HD Audio
–
–
–
–
–
–
shared
–