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Chapter 4 Technical Reference
Block Diagram
AGP 1X/2X/4X
AGPCLK
(66MHz)
5 PCI
AC97 Link
AC97
PCICLK
CODEC
(33MHz)
PCICLK (33MHz)
USBCLK (48MHz)
14.318 MHz
33 MHz
"*" This motherboard can auto detect and optimized setting for
Pentium
4 FSB 533MHz processor. (8SR533 only)
®
Pentium 4
CPUCLK+/- (100/133*M Hz)
Socket 478
CPU
System Bus
400/533*MHz
200/266/333MHz
SiS 645
ZCLK (66MHz)
HCLK+/- (100/133*MHz)
66 MHz
33 MHz
14.318 MHz
48 MHz
SiS 961B
LPC BUS
(PCB 2.0)
(PCB 3.0)
33 MHz
6 USB
ATA33/66/100/133
Ports
IDE Channels
ZCLK (66MHz)
CPUCLK+/- (100/133*M Hz)
ICS
AGPCLK (66MHz)
952004
HCLK+/- (100/133*MHz)
- 49 -
DDR
BIOS
Game Port
IT8700
Floppy
LPT Port
IT8705
PS/2
KB/Mouse
24 MHz
COM
Ports
Technical Reference
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