Asus ESC300 G4 User Guide - Page 38

Configuring an expansion card, IRQ assignments for this motherboard

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2.8.2 Configuring an expansion card VGA configuration Single VGA/PCIe card Dual VGA/PCIe cards PCI Express operating mode PCIe 3.0 x16_1 (gray) PCIe 3.0 x16_2 x16 (Recommended for single VGA card) N/A x16 x4 • In single VGA card mode, use the PCIe 3.0 x16_1 slot (gray) 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 A B C D E F G H HD Audio Controller shared - - - - - - - XHCI shared - - - - - - - SATA Controller shared - - - - - - - LAN Controller - - - shared - - - - PCIEx1_1 shared - - - - - - - PCIEx1_2 - shared - - - - - - PCIEx16_1 shared - - - - - - - PCIEx16_2 shared - - - - - - - M.2 shared - - - - - - - Asmedia PCIE to PCI Controller - - shared - - - - - When using PCI cards on shared slots, ensure that the drivers support "Share IRQ" or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable. 2-20 Chapter 2: Hardware Setup

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Chapter 2: Hardware Setup
2-20
2.8.2
Configuring an expansion card
IRQ assignments for this motherboard
VGA configuration
PCI Express operating mode
PCIe 3.0 x16_1 (gray)
PCIe 3.0 x16_2
Single VGA/PCIe card
x16 (Recommended for single
VGA card)
N/A
Dual VGA/PCIe cards
x16
x4
•
In single VGA card mode, use the PCIe 3.0 x16_1 slot (gray) 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.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
A
B
C
D
E
F
G
H
HD Audio Controller
shared
–
–
–
–
–
–
–
XHCI
shared
–
–
–
–
–
–
–
SATA Controller
shared
–
–
–
–
–
–
–
LAN Controller
–
–
–
shared
–
–
–
–
PCIEx1_1
shared
–
–
–
–
–
–
–
PCIEx1_2
–
shared
–
–
–
–
–
–
PCIEx16_1
shared
–
–
–
–
–
–
–
PCIEx16_2
shared
–
–
–
–
–
–
–
M.2
shared
–
–
–
–
–
–
–
Asmedia PCIE to PCI Controller
–
–
shared
–
–
–
–
–