Lenovo RD120 Bedienungsanleitung PDF herunterladen (Seite 82)

Removing 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.

Important: If the server has two power supplies and you remove either of them, the

server will not have redundant power; if the server power load then exceeds 835 W,

the server might not start or might not function correctly.

To remove a power supply, complete the following steps:

1. If only one power supply is installed, turn off the server and peripheral devices.

2. Disconnect the power cord from the power supply that you are removing.

3. Grasp the power-supply handle.

4. Press the orange release latch down and hold it down.

5. Pull the power supply part of the way out of the bay.

6. Release the release latch; then, support the power supply and pull it the rest of

the way out of the bay.

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

“Completing the installation” on page 74.

Installing a fan

For proper cooling, the server requires that five fans be installed for each power

supply installed.

The server comes with five replaceable fans. If you install a second power supply,

you must install the set of five fans that come with the power-supply.

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

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

Installed power supplies Required fans

Power supply 1 Fans in locations 3, 4, 8, 9, and 10

Power supplies 1 and 2 All 10 fans

Attention: To ensure proper server operation, if a fan fails, replace it as soon as

possible.

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

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Lenovo RD120 Bedienungsanleitung Seite 82