HP Vectra VE 5/xxx - 2 Manual page 31

WARNING
Replacing the Microprocessor
The system board has a ZIF - Zero Insertion Force - "universal" socket to
allow the microprocessor to be easily changed. Each microprocessor has a
Voltage Regulator Module (VRM) which must be installed with the
microprocessor.
The 75, 100 and 133 MHz Pentium processors, as mounted in the various
models, use the shortening block VRM 5063-7939.
To install the upgrade processor and VRM:
1 Remove the old processor and heatsink. Insert the new processor into the
processor socket, making sure that the dot or notch on the processor
is aligned with the dot on the socket. If the new processor has a
detachable heatsink, secure the heatsink onto the processor with the clip
provided.
2 Remove the old VRM by unclipping the two white tabs and sliding it up
and out of the socket.
3 Insert the new VRM. Slide the module into the socket, pressing it down
firmly, then push the two white tabs back into place. The VRM module
goes in one way only.
4 Set switches 1,2,3,4, and 7 on the system board for the correct processor
speed. Refer to the section "System Board Switches," on page 19.
Note that you will not need to change these switches if the new processor
is an Intel Overdrive for the old Intel Pentium processor.
The speed selected by the system board switches must correspond
to the speed of the installed processor.
Processor, VRM and 3.3V connector
2 PC Hardware Structure
Installing Accessories
27