System Overview

✎The processor heatsink/fan assembly mounting differs between form factors. Always use the same assembly or one of the same type when replacing the processor. Refer to the applicable Service Reference Guide for detailed removal and replacement procedures of the heatsink/fan assembly and the processor.

2.4.2Chipset

The Intel Q965 Express chipset consists of a Graphics Memory Controller Hub (GMCH) and an enhanced I/O controller hub with Digital Office (ICH8-DO). Table 2-4 compares the functions provided by the chipsets.

 

Table 2-4

 

Chipset Components

 

 

Components

Function

 

 

G965 GMCH

Intel Graphics Media Accelerator 950 (integrated graphics controller)

 

PCI Express x16 graphics interface (Q965 only)

 

SDRAM controller supporting unbuffered, non-ECC PC2-6400 DDR2

 

DIMMs

 

533-, 800-, or 1066-MHz FSB

 

 

82801GB ICH8-DO

PCI 2.3 bus I/F

 

PCI Express x1

 

LPC bus I/F

 

SMBus I/F

 

IDE I/F with SATA and PATA support

 

HD audio interface

 

RTC/CMOS

 

IRQ controller

 

Power management logic

 

USB 1.1/2.0 controllers supporting eight (8) ports

 

Gigabit Ethernet Controller

 

 

The I/O controller hub (ICH8-DO ) features Intel Digital Office, which includes Active Management Technology (AMT). AMT is a hardware/firmware solution that operates on auxiliary power to allow 24/7 support of network alerting and managment of the unit without regard to the power state or operating system. AMT capabilities include:

■System asset recovery (hardware and software configuration data)

■OS-independent system wellness and healing

■Software (virus) protection/management

 

2-20

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Technical Reference Guide