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Chapter 4 Technical Reference
Block Diagram
Pentium 4
Socket 478B
CPU
Intel
82845
ITE
8712
AC97
CODEC
Intel
ICH 2
CPUCLK+/- (100/133* MHz)
System Bus
400/533 MHz
DDR
200/266MHz
MCH66 (66MHz)
MCHCLK+/- (100/133* MHz)
66 MHz
33 MHz
14.318 MHz
48 MHz
48 MHz
LPC BUS
AGP 4X
AGPCLK
(66MHz)
5 PCI
PCICLK
(33MHz)
AC97 Link
MIC
LINE-IN
LINE-OUT
4 USB
Ports
ATA33/66/100
IDE Channels
Game Port
Floppy
LPT Port
PS/2
KB/Mouse
COM
Ports
BIOS
"*" Auto detect and optimized setting for Pentium
®
4 processor.
ICS
950223
MCH66 (66MHz)
CPUCLK+/- (100/133* MHz)
AGPCLK (66MHz)
MCHCLK+/- (100/133* MHz)
ICH3V66 (66MHz)
PCICLK (33MHz)
USBCLK (48MHz)
14.318 MHz
33 MHz