Intel CHIPSET 820E - Manual (Page 167)

Intel ® 820E Chipset
R
Design Guide 167
Table 57. Intel ® 820E Chipset Platform System Clock Cross-Reference
CK133/DRCG Pin Name Component Pin Name
PCICLK PCI slot CLK
PCI slot CLK
PCI slot CLK
PCI slot CLK
PCI slot CLK
ICH2 PCICLK-F
LPC super I/O CLK
FWH Flash BIOS CLK
3V66 MCH GCLKIN
ICH2 CLK66
AGP connector (on-board device) CLK
48MHz ICH2 CLK48
CPUCLK Processor BCLK
Processor BCLK
MCH HCLKIN
CPU_div2 DRCG Refclk
APIC Processor PICCLK
Processor PICCLK
ICH2 APICCLK
Clk/ClkB1 RDRAMs
MCH CTM/CTM#
CFM/CFM#1,2 RDRAMs
PclkM MCH HCLKOUT
SynclkN MCH RCLKOUT
NOTES:
1. Differential clocking pair
2. CFM/CFM# driven by MCH.