HP Dc7700 HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 33

System Overview 2.4 System Architecture The systems covered in this guide feature an architecture based on the Intel Q965 Express chipset (Figure 2-13). All systems covered in this guide include the following key components: ■ Intel Pentium 4, Pentium D, or Core 2 Duo processor. ■ Intel Q965 Express chipset - Includes Q965 GMCH north bridge and 82801 ICH8-DO south bridge ■ SMC SCH5317 super I/O controller supporting PS/2 keyboard and mouse peripherals ■ ALC262 audio controller supporting line in, line out, microphone in, and headphones out ■ Intel 82566DM 10/100/1000 network interface controller The Q965 chipset provides a major portion of system functionality. Designed to compliment the latest Intel processors, the Q965 GMCH intefaces with the processor through a 533/800/1066-MB Front-Side Bus (FSB) and communicates with the ICH8-DO component through the Direct Media Interface (DMI). The integrated graphics controller of the Q965 may be upgraded through a PCI Express x16 graphics slot. All systems include at least one PCI 2.3 slot and feature as standard a serial ATA (SATA) hard drive. The USDT model supports a Slimline Optical Drive through a legacy parallel ATA 100 interface. Table 2-3 lists the differences between models by form factor. Table 2-3. Architectural Differences By Form Factor Model USDT SFF ST MT Memory sockets 3 4 4 4 PCI Express x16 graphics slot? Yes [1] Yes [2] Yes [2] Yes # of PCI Express x1 0 Yes [2] Yes [2] Yes slots # of PCI 2.3 slots 1 [3] 2 [4] 2 [4] 2 Serial / parallel ports Optional [5] Standard [6] Standard [6] Standard [6] SATA interfaces 1 3 3 4 CMT 4 Yes Yes 4 Standard [6] 4 Notes: [1] Supports an ADD2 card in the reverse-layout. or a PCIe x16 graphics card (with PCIe riser card installed) [2] Slot not accessible if PCI riser is installed. [3] Full-height slot (requires PCI riser) [4] Low-profile slots without PCI riser, full-height slots with optional PCI riser [5] Requires adapter. [6] 2nd serial port requires adapter Technical Reference Guide www.hp.com 2-17