System Overview

2.3System Architecture

The systems covered in this guide feature an architecture based on the Intel Q45 Express chipset (Figure 2-2). All systems covered in this guide include the following key components:

■Intel Pentium Dual-Core, Core 2 Duo, Core 2 Quad, or Celeron processor.

■Intel Q45 Express chipset - Includes Q45 GMCH and 82801 ICH10-DO

■Super I/O (SIO) controller supporting PS/2 keyboard and mouse peripherals

■AD1884A audio controller supporting line in, line out, microphone in, and headphones out

■Intel 82567LM GbE network interface controller

The Q45 chipset provides a major portion of system functionality. Designed to complement the latest Intel processors, the Q45 GMCH integrates with the processor through a 800/1066/1333-MHz Front-Side Bus (FSB) and communicates with the ICH10-DO component through the Direct Media Interface (DMI). The integrated graphics controller of the Q45 on SFF and CMT systems can be upgraded through a PCI Express (PCIe) x16 graphics slot. All systems include a serial ATA (SATA) hard drive in the standard configuration.

Table 2-2 lists the differences between models by form factor.

Table 2-2.

Architectural Differences By Form Factor

Function

USDT

SFF

CMT

 

 

 

 

Memory sockets

2 SODIMMs

4 DIMMs

4 DIMMs

 

 

 

 

PCIe 2.0 x16 graphics slot

No

1 [1]

1

 

 

 

 

PCIe x4 (x16 connector) graphics slot

No

1 [1]

1

 

 

 

 

# of PCIe 1.1 x1 slots

0

1 [1]

1

 

 

 

 

# of PCI 2.3 slots

0

1 [3]

3

 

 

 

 

Serial port

0

1 [4]

1 [4]

 

 

 

 

Parallel ports

0

optional

optonal

 

 

 

 

SATA interfaces

2

3

4

 

 

 

 

eSATA capability [2]

No

Yes

Yes

 

 

 

 

Notes:

[1]Low-profile slot. Not accessible if PCI riser is installed.

[2]Requires optional bracket/cable assembly.

[3]Low-profile slot in standard configuration. 2 full-height slots supported with optional PCI riser.

[4]2nd serial port possible with optional adapter.

 

2-4

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Technical Reference Guide