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2-5
Expansion Cards
2-5-1 Procedure For Expansion Card Installation
1. Read the documentation for your expansion card and make any necessary
hardware or software setting for your expansion card such as jumpers.
2. Remove your computer's cover and the bracket plate on the slot you intend to use.
3. Align the card's connectors and press firmly.
4. Secure the card on the slot with the screen you remove above.
5. Replace the computer system's cover.
6. Set up the BIOS if necessary.
7. Install the necessary software driver for your expansion card.
2-5-2 Assigning IRQs For Expansion Card
Some expansion cards need an IRQ to operate. Generally, an IRQ must exclusively
assign to one use. In a standard design, there are 16 IRQs available but most of
them are already in use.
Standard Interrupt Assignments
IRQ
Priority
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.
NOTE!
2-5-3 Expasion Slot
Two PCI-Express2.0 x16by8 lane graphic slot offer 4Gbyte/sec data transfer rate at
each relative direction and up to 8Gbyte/sec concurrent bandwidth at full speed. Fully
compliant to the PCI Express Base Specification revision2.0, support PCI Express
VGA card, and other PCI Express device. One PCI-Express 2.0 x1 and two 32-bit PCI
slots guarantee the rich connectivity for the I/O of peripherals.
N/A
System Timer
N/A
Keyboard Controller
N/A
Programmable Interrupt
8
Communications Port (COM2)
9
Communications Port (COM1)
6
Sound Card (sometimes LPT2)
11
Floppy Disk Controller
7
Printer Port (LPT1)
N/A
System CMOS/Real Time Clock
10
ACPI Mode when enabled
3
IRQ Holder for PCI Steering
2
IRQ Holder for PCI Steering
4
PS/2 Compatible Mouse Port
N/A
Numeric Data Processor
5
Primary IDE Channel
1
Secondary IDE Channel
If using PCI cards on shared slots, make sure that the drivers support "Shared
IRQ" or that the cards don't need IRQ assignments. Conflicts will arise between the
two PCI groups that will make the system unstable or cards inoperable.
Standard function
11
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