Removal and replacement procedures 49
IMPORTANT: PPM 2 must be installed when processor 2 is installed. The system fails to boot if
the PPM is missing.
CAUTION: To prevent possible server malfunction, do not mix processors of different speeds or
cache sizes. Refer to the label on the processor heatsink for a description of the processor.
IMPORTANT: Processor socket 1 must be populated at all times or the server does not function.
CAUTION: Removal of the processor or heatsink renders the thermal layer between the
processor and heatsink useless. Clean the component with the provided alcohol swab, then
add thermal grease.
NOTE: PPM 1 is embedded in the system board.
To remove the component:
1. Update the system ROM.
Locate and download the latest ROM version from the HP website
(http://h18023.www1.hp.com/support/files/server/us/romflash.html
). Follow the instructions on
the website to update the system ROM.
2. Power down the server (on page 27).
3. Do one of the following:
o Unlock and remove the bezel ("Front bezel" on page 29).
o Extend the server from the rack (on page 28).
4. Remove the access panel.
5. Remove the heatsink ("Heatsink" on page 46).
6. Open the processor retaining latch and the processor socket retaining bracket.
