Chapter 2 – Asus SABERTOOTH X79 User Manual
Page 31

ASUS SABERTOOTH X79
2-13
Chapter 2
•
In single VGA card mode, use the PCIe 3.0 x16_1 slot (beige) for a PCI Express x16
graphics card to get better performance.
•
In CrossFireX™ or SLI™ mode, use the PCIe 3.0 x16_1 and PCIe 3.0 x16_2 slots for
PCI Express x16 graphics cards to get better performance.
•
We recommend that you provide sufficient power when running CrossFireX™ or SLI™
mode. Refer to page 2-24 for details.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using
multiple graphics cards for better thermal environment. See page 2-22 for details.
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCIEX16_1
shared
–
–
–
–
–
–
–
PCIEX16_2
shared
–
–
–
–
–
–
–
PCIEX16_3
shared
–
–
–
–
–
–
–
PCIEX1_1
–
–
–
shared
–
–
–
–
PCIEX1_2
shared
–
–
–
–
–
–
–
USB3.0 1
–
shared
–
–
–
–
–
–
USB3.0 2
–
–
shared
–
–
–
–
–
USB3.0 3
–
–
–
shared
–
–
–
–
eSATA
shared
–
–
–
–
–
–
–
Intel LAN
–
–
shared
–
–
–
–
–
Marvell 9128
–
–
–
shared
–
–
–
–
On Chip USB1
–
–
–
–
–
–
–
shared
On Chip USB2
–
–
–
–
–
–
–
shared
HD Audio
–
–
–
–
–
–
shared
–
On Chip SATA
–
–
–
–
shared
–
–
–
IEEE 1394
–
shared
–
–
–
–
–
–
PCI slot
shared
–
–
–
–
–
–
–