
Technical Reference
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Chapter 4 Technical Reference
Block Diagram
Pentium 4
Socket 478
CPU
SiS 645DX
AC97
CODEC
SiS 961B
/- (100/133MHz)
DDR
ZCLK (66MHz)
HCLK+/- (100/133MHz)
66 MHz
33 MHz
14.318 MHz
48 MHz
24 MHz
33 MHz
LPC BUS
AGP 1X/2X/4X
AGPCLK
(66MHz)
3 PCI
PCICLK
(33MHz)
MIC
LINE-IN
LINE-OUT
6 USB
Ports
ATA33/ 66/
100/133 IDE
C hannels
Floppy
LPT Port
PS/2
KB/Mouse
COM
Ports
ICS
952001AF
ZCLK (66MHz)
/- (100/133MHz)
AGPCLK (66MHz)
HCLK+/- (100/133MHz)
PCICLK (33MHz)
USBCLK (48MHz)
14.318 MHz
33 MHz
BIOS
W83697HF
RTL8100BL
RJ45
Sy stem Bus 400/533MHz
200/266/333 MHz