Technical Reference Guide
4.5 SYSTEM CLOCK DISTRIBUTION
These systems use an Intel CK-type clock generator and crystal for generating the clock signals
required by the system board components. Table 4-13 lists the system board clock signals
how they are distributed.
Table 4-13. Clock Generation and Distribution
and
Table 4-13.
Frequncy
Clock Generation and Distribution
Source nati
C sso
CK M so
CK 2, AG
O
C so
r
[1] Routed to on-board controller on Deslpro EN SFF.
Routed to AGP slot on Desktop and Configurable Minitow
put g
Desti on
r, MCH
ckets
P Graphic
Cntlr.
r, ICH2, P
s Cntlr. [1]
CI Slots
er.
power modes to
66, 100, or 133 MHz K Proce
100 or 133 MHz DIM
66 MHz ICH
48 MHz CK ICH2, I/
33 MHz K Proces
14.31818 MHz C ystal CK
NOTES:
ertain clock out conserve energy. Clock
the SMBus interface by BIOS.
C s are turned off durin reduced
output control is handled through
Compaq Evo and Workstation Personal Computers
Featuring the Intel Pentium 4 Processor
Second Edition - January 2003
4-23
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