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1.6
Expansion slots
The P4BGL-ED has only one expansion slot exclusive for a PCI riser;
when a PCI riser is installed, it allows slots for two PCI expansion cards.
1.6.1
Configuring an expansion card
After physically installing the expansion card, configure the card by
adjusting the software settings.
1.
Turn on the system and change the necessary BIOS settings, if any.
See Chapter 2 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.
1.6.2
Standard Interrupt Assignments
IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
*These IRQs are usually available for ISA or PCI devices.
1-8
Standard Function
System Timer
Keyboard Controller
Programmable Interrupt Controller
USB Universal Host Controller
Communications Port (COM1)
USB Universal Host Controller
Standard Floppy Disk Controller
Printer Port (LPT1)
System CMOS/Real Time Clock
Generic Cardbus Controller
ACPI IRQ Holder for PCI IRQ Steering
ACPI IRQ Holder for PCI IRQ Steering
PS/2 Compatible Mouse Port
Numeric Data Processor
Ultra ATA Controller
Secondary Ultra ATA Controller
Chapter 1: Motherboard Information
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