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Revision History
Chapter 4 Technical Reference
Block Diagram
AGP 4X
AGPCLK
(66MHz)
5 PCI
AC97 Link
AC97
PCICLK
CODEC
(33MHz)
PCICLK (33MHz)
USBCLK (48MHz)
14.318 MHz
33 MHz
Pentium 4
CPUCLK+/- (100/133MHz)
Socket 478
CPU
System Bus
400/533MHz
333/266MHz
82845GE
ZCLK (66MHz)
HCLK+/- (100/133MHz)
66MHz
33 MHz
14.318 MHz
48 MHz
ICH4
LPC BUS
24 MHz
33 MHz
6 USB
ATA33/66/100
Ports
IDE Channels
ZCLK (66MHz)
CPUCLK+/- (100/133MHz)
ICS
AGPCLK (66MHz)
950223
HCLK+/- (100/133MHz)
- 49 -
DDR
BIOS
Game Port
Floppy
IT8712
LPT Port
PS/2
KB/Mouse
COM
Ports
Technical Reference
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