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Block Diagram
AGP 8X/4X
AGPCLK
(66MHz)
5 PCI
PCICLK
(33MHz)
PCICLK (33MHz)
USBCLK (48MHz)
GA-8I845PE Pro Motherboard
Pentium 4
Socket 478
CPU
Intel 865P
RJ45
Marvell 8001
ICH5
AC97 Link
AC97
CODEC
8 USB
(2.0/1.1)
Ports
CLK GEN
14.318 MHz
33 MHz
24 MHz
- 8 -
CPUCLK+/- (100/133MHz)
System Bus
400/533MHz
266/333MHz
ZCLK (66MHz)
HCLK+/- (100/133/200MHz)
66MHz
33 MHz
14.318 MHz
48 MHz
LPC BUS
ITE8712
24 MHz
33 MHz
ATA33/66/100
IDE Channels
Serial ATA
Channels
ZCLK (66MHz)
CPUCLK+/- (100/133MHz)
AGPCLK (66MHz)
HCLK+/- (100/133MHz)
ICH3V66 (66MHz)
DDR
BIOS
Game Port
Floppy
LPT Port
PS/2
KB/Mouse
COM
Ports
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