Lenovo RD120 manual Microprocessor-socketdust cover

Note: For simplicity, certain components are not shown in this illustration.

1	Heat sink
2	Heat-sink filler
3	Microprocessor
4	Microprocessor-socket dust cover

Attention:

vA startup (boot) microprocessor must always be installed in microprocessor connector 1 on the system board.

vTo ensure correct server operation when you install an additional microprocessor, use microprocessors that have the same cache size and type, front-side bus frequency, and clock speed. Microprocessor internal and external clock frequencies must be identical.

To install an additional microprocessor, complete the following steps:

1.Read the safety information that begins on page v and “Installation guidelines” on page 29.

2.Turn off the server and disconnect all power cords and external cables (see “Turning off the server” on page 12).

Attention: In a dc power environment, only trained service personnel other than Lenovo service technicians are authorized to connect or disconnect power to the dc power supply. See the documentation that comes with each dc power supply.

3.Remove the server cover (see “Removing the cover” on page 31).

56ThinkServer RD120 Types 6444, 6445, 6446, and 6447: User Guide