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Chapter 4 Technical Reference
Revision History
Block Diagram
AGP 1X/2X/4X
AGPCLK
(66MHz)
6 PCI
PCICLK
CODEC
(33MHz)
PCICLK (33MHz)
USBCLK (48MHz)
14.318 MHz
Pentium 4
Socket 478
CPU
System Bus 100M Hz
SiS 645
SiS 961
AC97 Link
AC97
6 USB
Ports
952004AF
33 MHz
- 47 -
CPUCLK+/- (100M Hz)
100/133MHz
ZCLK (66MHz)
HCLK+/- (100MHz)
66 MHz
33 MHz
14.318 MHz
48 MHz
LPC BUS
IT8700
24 MHz
33 MHz
ATA33/66/100
IDE Channels
ZCLK (66MHz)
CPUCLK+/- (100M Hz)
ICS
AGPCLK (66MHz)
HCLK+/- (100MHz)
SDRAM
BIOS
Game Port
Floppy
LPT Port
PS/2
KB/Mouse
COM
Ports
Technical Reference
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