Lenovo RD120 User Manual download pdf (Page 79)

Removing a memory module

To remove a DIMM, 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 peripheral devices, and disconnect the power cord and

all external cables.

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

4. Remove the riser-card assembly (see “Removing the riser-card assembly” on

page 32).

5. Remove the air baffle over the DIMMs (see “Removing the DIMM air baffle” on

page 37).

Attention: To avoid breaking the retaining clips or damaging the DIMM

connectors, open and close the clips gently.

6. Open the retaining clip on each end of the DIMM connector.

7. Lift the DIMM out of the connector.

8. Replace the DIMM or remove the second DIMM of the pair.

you have other optional devices to install or remove, do so now. Otherwise, go to

“Completing the installation” on page 74.

Installing a hot-swap power supply

Attention: The information in this document regarding installing and removing

power supplies and connecting and disconnecting power refers to ac power

supplies only. If the server contains dc power supplies, see the documentation that

comes with the dc power supplies. 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 and to install and remove a dc power

supply.

The server supports a maximum of two hot-swap ac power supplies.

Important: Only the configurations that are shown in the following table are

supported. The fan numbers are printed on the microprocessor air baffle.

Chapter 2. Installing optional devices 65

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Lenovo RD120 User Manual Page 79