HP PL Class 450/500/550/600/650/700/750 User Manual page 67

NOTE
How to Install Accessories In Your HP Visualize Linux Workstation
7. The system board has two processor sockets and a VRM slot for each
processor. If you are changing the existing processor, remove it from
the socket by squeezing the tabs at the top and bottom of the
processor and gently pulling the processor away from the system
board. Then remove the VRM for the processor.
If you are installing a processor in the second socket, remove the
terminator.
Installing a faster processor than the one supplied with your
Workstation will void the warranty.
1. Slide the new processor into the processor socket and push gently
until it snaps into place (the processor can only go in one way). If you
are installing a second processor, remove the card in the second
processor socket and slide the processor into the empty processor
socket (next to the existing processor).
2. Insert the VRM for the processor in the VRM socket.
3. Replace the transparent section of the HP UltraFlow airflow guide
covering the processor sockets.
4. Slide the power supply back into the computer and tighten the four
self-retaining screws.
5. Turn the Workstation upright and replace the HP UltraFlow airflow
guide.
6. Reconnect the fan to the system board.
Chapter 2
Installing a Processor
VRM module
Processor
51