System Clock Distribution - HP Compaq d330 DT Technical Reference Manual

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 4-11 lists the system board clock signals and
how they are distributed.
Table 4-11. Clock Generation and Distribution
Clock Generation and Distribution
Frequncy
100, 133, or 200 MHz
100, 133, or 200 MHz
100 MHz
66 MHz
48 MHz
33 MHz
14.31818 MHz
Certain clock outputs are turned off during reduced power modes to conserve energy. Clock
output control is handled through the SMBus interface by BIOS.
Table 4-11.
Source Destination
CK Processor, GMCH
CK DIMM sockets
CK ICH
CK ICH, GMCH
CK ICH, GMCH
CK ICH, PCI Slots
Crystal CK, ICH
hp compaq d330 and d530 Series of Personal Computers
First Edition - June 2003
Technical Reference Guide
Featuring the Intel Pentium 4 Processor
4-21