1.7.3 Interrupt assignments

Standard interrupt assignments

IRQ

Standard Function

0System Timer

1Keyboard Controller

2Re-direct to IRQ#9

4Communications Port (COM1)*

5IRQ holder for PCI steering*

6Floppy Disk Controller

7Printer Port (LPT1)*

8System CMOS/Real Time Clock

9IRQ holder for PCI steering*

10IRQ holder for PCI steering*

11IRQ holder for PCI steering*

12PS/2 Compatible Mouse Port*

13Numeric Data Processor

14Primary IDE Channel

*These IRQs are usually available for ISA or PCI devices.

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

PCI slot 1

shared

PCI slot 2

shared

PCI Express x16 slot

shared

PCI Express x1 slot

shared

Onboard USB controller 1

shared

Onboard USB controller 2

shared

— — — — — —

Onboard USB controller 3

shared

Onboard USB controller 4

shared

Onboard USB 2.0 controller

shared

Onboard IDE port

shared

Onboard HD audio

shared

Onboard LAN

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.

ASUS P5LD2-FM/DH/VP

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Asus P5LD2-FM, P5LD2-VP manual Interrupt assignments, Standard interrupt assignments, IRQ assignments for this motherboard

P5LD2-DH, P5LD2-FM, P5LD2-VP specifications

The Asus P5LD2 series of motherboards, including the P5LD2-VP, P5LD2-FM, and P5LD2-DH, are notable platforms designed for users seeking a balance between performance and stability. Each variant caters to different needs while sharing common features derived from the Intel LGA 775 architecture. These motherboards support the Intel Pentium 4, Pentium D, and Intel Core 2 Duo processors, making them versatile options for a wide array of computing tasks.

One of the standout features across the P5LD2 series is its support for dual-channel DDR2 memory. These motherboards can accommodate up to 8GB of memory, which is particularly beneficial for multitasking and demanding applications. The P5LD2-VP features four DIMM slots, allowing for flexible memory configurations. Meanwhile, the P5LD2-FM emphasizes multimedia capabilities, incorporating integrated audio and graphics options to enhance entertainment experiences.

Connectivity is another key aspect of the P5LD2 motherboards. They include multiple SATA ports, enabling users to connect a variety of storage devices. The P5LD2-DH, for example, supports RAID configurations, which can improve data redundancy and performance for users managing large volumes of data. Additionally, the presence of USB 2.0 ports ensures ample connectivity for peripherals, ranging from external hard drives to printers.

In terms of expansion capabilities, the P5LD2 series features PCI Express x16 slots, providing the option for users to upgrade their graphics cards for enhanced performance in gaming and graphic-intensive applications. The motherboards also include PCI slots for legacy cards, which adds further flexibility in terms of hardware upgrades.

Asus has implemented several technologies in the P5LD2 line to enhance durability and performance. These include the Asus Stack Cool technology, which facilitates efficient heat dissipation and maintains lower operating temperatures. Additionally, the motherboards feature Asus Q-Fan technology that intelligently adjusts fan speeds based on system temperatures, reducing noise and improving overall cooling efficiency.

Overall, the Asus P5LD2 series represents a solid choice for users looking for reliable, feature-rich motherboards that can support a variety of computing needs without compromising on quality or performance. Their blend of robust features, expandability, and technological advancements makes them suitable for both everyday computing and more demanding applications.