HP dc73 Technical Reference Guide: HP Compaq dc7800 Series Business Desktop Co - Page 20
System Architecture - smc
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System Overview 2.3 System Architecture The systems covered in this guide feature an architecture based on the Intel Q35 Express chipset (Figure 2-13). 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 Q35 Express chipset - Includes Q35 GMCH north bridge and 82801 ICH9-DO south bridge ■ SMC SCH5327 super I/O controller supporting PS/2 keyboard and mouse peripherals ■ AD1884 audio controller supporting line in, line out, microphone in, and headphones out ■ Intel 82566DM 10/100/1000 network interface controller The Q35 chipset provides a major portion of system functionality. Designed to compliment the latest Intel processors, the Q35 GMCH integrates with the processor through a 800/1066/1333-MHz Front-Side Bus (FSB) and communicates with the ICH9-DO component through the Direct Media Interface (DMI). The integrated graphics controller of the Q35 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. The USDT model supports a Slimline Optical Drive through a legacy parallel ATA 100 interface. 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 x16 graphics slot? No Yes [1] Yes # of PCIe x1 slots 1 [2] 2 [1] 2 # of PCI 2.3 slots 0 1 [3] 3 Serial / parallel ports 0 1 [4] 1 [4] Parallel ports 0 1 1 SATA interfaces 1 3 4 Notes: [1] Low-profile slot. Not accessible if PCI riser is installed. [2] PCIe Mini-Card slot. [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 www.hp.com Technical Reference Guide