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Chapter 3 Processor/Memory Subsystem
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
3-4
3.2.3 PROCESSOR UPGRADING
All units use the PGA370 ZIF mounting socket and ship with either a Celeron 500E or a Pentium
III 500E installed. To replace the processor, use the following procedure:
1. Power down the system and disconnect the power cord.
2. Remove the right outer (carbon) panel.
3. Disconnect and remove the hard drive.
4. Remove the right chassis access panel.
5. After insuring that you have been properly grounded, remove the heatsink retaining clip and
then the heatsink itself.
6. Lift the release arm of the PGA370 socket to the upright position.
7. Lift the processor package from the socket.
Replacement of the new processor is a reversal of steps 1-7. The use of “boxed” processors may
also require the connection of a power cable from the processor’s heatsink-mounted fan to a
header on the system board. When replacing the processor it is recommended that the
replacement processor be of the same family as the existing processor (i.e., Celeron for Celeron,
or Pentium for Pentium).
WARNING
:
Upgrading to a faster processor is possible provided that the new
processor
does not draw more than 18 amps of current. Using a processor that
draws in excess of 18 amps may create a thermal condition and damage the system
board
The processor core voltage and operating frequency are automatically set early in power cycle
process. No DIP switch settings are involved in replacing the processor.
!