Asus RS260-E4 RX8 Service Guide - Page 45

Interrupt assignments, DDR2 SO-DIMM socket - driver

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2.5.3 DDR2 SO-DIMM socket The DDR2 SO-DIMM socket on the motherboard support an optional ASUS Server Management Board. DDR2 SO-DIMM socket 2.5.4 Configuring an expansion card After installing the expansion card, configure it by adjusting the software settings. 1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 5 for information on BIOS setup. 2. Assign an IRQ to the card. Refer to the tables below. 3. Install the software drivers for the expansion card. 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. 2.5.5 Interrupt assignments IRQ Priority Standard function 0 1 System timer 1 2 Keyboard Controller 2 - Re-direct to IRQ#9 3 11 Communications Port (COM2)* 4 12 Communications Port (COM1)* 5 13 IRQ holder for PCI steering* 6 14 Floppy Disk Controller 7 15 Printer Port (LPT1)* 8 3 System CMOS/Real Time Clock 9 4 IRQ holder for PCI steering* 10 5 IRQ holder for PCI steering* 11 6 IRQ holder for PCI steering* 12 7 PS/2 Compatible Mouse Port* 13 8 Numeric Data Processor 14 9 Primary IDE Channel 15 10 Secondary IDE Channel * These IRQs are usually available for ISA or PCI devices. ASUS RS260-E4/RX8 2-25

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ASUS RS260-E4/RX8
2-25
2.5.4
Configuring an expansion card
After installing the expansion card, configure it by adjusting the software settings.
1.
Turn on the system and change the necessary BIOS settings, if any. See
Chapter 5 for information on BIOS setup.
2.
Assign an IRQ to the card. Refer to the tables below.
3.
Install the software drivers for the expansion card.
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.
2.5.5
Interrupt assignments
* These IRQs are usually available for ISA or PCI devices.
IRQ
Priority
Standard function
0
1
System timer
1
2
Keyboard Controller
2
—
Re-direct to IRQ#9
3
11
Communications Port (COM2)*
4
12
Communications Port (COM1)*
5
13
IRQ holder for PCI steering*
6
14
Floppy Disk Controller
7
15
Printer Port (LPT1)*
8
3
System CMOS/Real Time Clock
9
4
IRQ holder for PCI steering*
10
5
IRQ holder for PCI steering*
11
6
IRQ holder for PCI steering*
12
7
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
Primary IDE Channel
15
10
Secondary IDE Channel
2.5.3
DDR2 SO-DIMM socket
The DDR2 SO-DIMM socket on the
motherboard support an optional ASUS
Server Management Board.
DDR2 SO-DIMM socket