ASUS SABERTOOTH 990FX R2.0
1-23
Chapter 1
•
In single VGA card mode, use the PCIe 2.0 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_3 slots for
PCI Express x16 graphics cards to get better performance.
•
In 3-way SLI mode, use the PCIe 3.0 x16_1/PCIe 3.0 x16_3/PCIe 3.0 x16_4 slots for
PCI Express x16 graphic cards to get better performance.
•
We recommend that you provide sufficient power when running CrossFireX™ or SLI™
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
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
–
–
–
ASM eSATA
–
–
–
–
shared
–
–
–
ASM SATA [Gray]
–
–
–
–
–
–
shared
–
ASM USB3_12
–
–
–
–
–
–
shared
–
ASM 1042 (Front)
–
–
–
–
–
–
–
shared
ASM USB3_3
shared
–
–
–
–
–
–
–
Realtek 8111F (LAN)
–
–
–
–
–
shared
–
–
Onchip SATA [Brown]
–
–
–
shared
–
–
–
–
Onchip Audio
shared
–
–
–
–
–
–
–
Onchip USB2_1-5
–
shared
–
–
–
–
–
–
Onchip USB2_6-8
–
–
–
–
–
shared
–
–
Onchip USB2_11-14
–
–
–
–
–
–
–
shared
VGA
configuration
PCI Express operating mode
PCIe
2.0_x16_1
PCIe
2.0_x16_2
PCIe
2.0x16_3
PCIe
2.0x16_4
Single VGA/
PCIe card
x16
(Recommend for
single VGA)
x4
N/A
x8
Dual VGA/PCIe
card
x16
x4
x16
x1
3-way SLI
x16
x4
x8
x8
Summary of Contents for SABERTOOTH 990FX R2.0
Page 1: ...Motherboard SABERTOOTH 990FX R2 0 ...
Page 52: ...1 38 Chapter 1 Product introduction Chapter 1 ...
Page 58: ...2 6 Chapter 2 Getting started Chapter 2 2 3 4 5 ...
Page 59: ...ASUS SABERTOOTH 990FX R2 0 2 7 Chapter 2 1 2 3 To remove a DIMM 2 1 4 DIMM installation B A ...
Page 60: ...2 8 Chapter 2 Getting started Chapter 2 2 1 5 ATX Power connection 1 2 OR OR ...
Page 61: ...ASUS SABERTOOTH 990FX R2 0 2 9 Chapter 2 2 1 6 SATA device connection OR 2 OR 1 ...
Page 154: ...4 40 Chapter 4 Software support Chapter 4 ...
Page 174: ...6 10 Chapter 6 Multiple GPU support Chapter 6 ...
Page 180: ...A 6 Appendices Appendices ...