Attention:
1. A startup (boot) microprocessor must always be installed in microprocessor
socket 1 on the system board.
2. To ensure correct server operation when you install an additional
microprocessor, use microprocessors that are compatible and install at least one
DIMM in a DIMM connector for microprocessor 2 (starting with the connector
farthest from the microprocessor). (See “Installing a memory module” on page
61 for more information.)
To install a microprocessor, complete the following steps:
1. Read the safety information that begins on page v and “Installation guidelines”
on page 35.
2. Turn off the server and peripheral devices; then, disconnect the power cords
and all external cables. Remove the left-side cover (see “Removing the
left-side cover” on page 48 for more information).
3. Remove the hot-swap power supplies from the server.
4. Open the power-supply cage (see “Opening the power-supply cage” on page
52 for more information).
5. Remove the air baffle (see “Removing the air baffle” on page 50 for more
information).
6. Locate the second microprocessor socket on the system board.
Attention: The microprocessor retention latch is spring-loaded when the
microprocessor is in place. Releasing the latch too quickly or allowing it to
spring upward can damage the microprocessor and surrounding components.
7. Release the microprocessor retention latch by pressing down on the end,
moving it to the side, and slowly releasing it to the fully open (up) position.
68 IBM System x3500 M2 Type 7839: Installation and User’s Guide