VGA configuration

Single or Dual VGA/PCIe card

PCI Express operating mode

PCIe

PCIe

PCIe

3.0_x16_1

2.0_x16_2

3.0x16_3

x16

x16

x16

(Recommend for

single VGA)

 

 

PCIe

3.0x16_4

N/A

3-way SLI

x16

x16

x8

x8

 

 

 

 

Chapter 1

• 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_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

 

 

 

 

 

 

 

 

 

1-24

Chapter 1: Product introduction

Page 37 Page 39
Page 38
Image 38
Asus SABERTOOTH990FXGEN3, 990FX R20, SABERTOOTH 990FX/GEN3 R2 manual IRQ assignments for this motherboard
Page 37 Page 39
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