Technical Reference Guide www.hp.com 2-21
System Overview
2.4.2 Chipset
The chipset consists of a Graphics Memory Controller Hub (GMCH), an enhanced I/O controller
hub (ICH), and a firmware hub (FWH). Table 2-4 compares the functions provided by the
chipsets.
NOTE:
[1] Or equivalent component.
Table 2-4
Chipset Components
Components Function
82945G GMCH Intel Graphics Media Accelerator 950 (integrated graphics controller)
PCI Express x16 graphics interface (945G only)
SDRAM controller supporting unbuffered, non-ECC PC2-4200 DDR2
DIMMs
533-, or 800-MHz FSB
82801GB ICH8 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
82802 FWH [1] Loaded with HP/Compaq BIOS