Hardware Reference
In-Depth Information
P6-class processors and their capabilities. The ICH2 is also used as part of some of the
first seventh-generation (Pentium 4/Celeron 4) Intel chipsets.
Table 4.16 Intel South Bridge-I/O Controller Hub Chips for P6
Several third-party companies also produced chipsets designed to support P6-class pro-
cessors, including ALi Corporation (formerly known as Acer Laboratories), VIA Techno-
logies, and SiS. ALi (Acer Labs, Inc.) spun off its chipset division in 2003 as ULi Elec-
tronics; then ULi was acquired by NVIDIA in 2006. ALi manufactured a variety of chip-
sets for the P6-class processors. Most of these were similar in form and function to the
Intel offerings.
Seventh/Eighth-Generation (Pentium 4/D, Core 2, and Core i) Chipsets
The Pentium 4 and Celeron processors using Socket 423 and those made for Socket 478
are essentially the same processors with different cache designs and minor internal revi-
sions, so the same chipset can be used for both processors. The Pentium 4 processor in
Socket 775 is different from its predecessors; consequently, most 9xx-series chipsets sup-
port only the Socket 775 version of the Pentium 4, as well as the newer Core 2 series of
processors.
Tables 4.17
and
4.18
show the 8xx-series chipsets Intel makes for Pentium 4 and Celeron
4 processors. These chipsets use Intel's hub architecture, providing an interconnect speed
of 266MBps between the MCH/GMCH and the ICH chips.
Table 4.17 Pentium 4 8xx-Series Chipsets from Intel Introduced 2000-2002
