System Overview

2.3.3 Support Components

Input/output functions not provided by the chipset are handled by other support components. Some of these components also provide “housekeeping” and various other functions as well. Table 2-3 shows the functions provided by the support components.

Table 2-3

Support Component Functions

Component Name

Function

 

 

SCH5327 SIO Controller

Keyboard and pointing device I/F

 

Diskette I/F

 

Serial I/F (COM1and COM2) [1]

 

Parallel I/F (LPT1, LPT2, or LPT3) [2]

 

PCI reset generation

 

Interrupt (IRQ) serializer

 

Power button and front panel LED logic

 

GPIO ports

 

Processor over temperature monitoring

 

Fan control and monitoring

 

Power supply voltage monitoring

 

SMBus and Low Pin Count (LPC) bus I/F

 

 

Broadcom BMC5754

10/100/1000 Fast Ethernet network interface controller.

Network Interface Controller

 

 

 

AD1884A HD Audio Codec

Audio mixer

 

Two digital-to-analog stereo converters

 

Two analog-to-digital stereo converters

 

Analog I/O

 

Supports stereo (two-channel) audio streams

NOTE:

[1]COM2 requires optional bracket/cable assembly.

[2]LPTn support requires optional bracket/cable assembly.

2.3.4System Memory

These systems implement a dual-channel non-ECC Double Data Rate (DDR2) memory architecture. All models support DDR2 800- and 667-MHz DIMMs, and are shipped with DDR2 800-MHz (PC2-6400) DIMMs. These systems provide four DIMM sockets and support a total of 8 gigabytes of memory.

✎DDR and DDR2 DIMMs are NOT interchangeable.

 

Technical Reference Guide

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