Lenovo 7Y54, Руководство по обслуживанию, Страница: 48 / 138

Step 2. Press the battery straight down until it clicks in place.
After you install the CMOS battery, complete the following steps:
1. Install the top cover onto the server (see “Install the top cover” on page 87 ).
2. Install the server into the rack if necessary.
3. Reconnect power cords and all external cables.
DIMM replacement
Use the following information to remove and install a DIMM.
Remove a DIMM
Use this information to remove a DIMM.
Attention:
Memory modules are sensitive to static discharge and require special handling. In addition to the
standard guidelines for “Handling static-sensitive devices” on page 33 :
• Always wear an electrostatic-discharge strap when removing or installing memory modules. Electrostatic-
discharge gloves can also be used.
• Never hold two or more memory modules together so that they touch. Do not stack memory modules
directly on top of each other during storage.
• Never touch the gold memory module connector contacts or allow these contacts to touch the outside of
the memory-module connector housing.
• Handle memory modules with care: never bend, twist, or drop a memory module.
Before you remove a DIMM, complete the following steps:
1. Read “Safety” on page iii and “Installation Guidelines” on page 31 to ensure that you work safely.
2. Turn off the server. Disconnect the power cords and all external cables (see “Power off the server” on
page 10 ).
3. If server is installed in a rack, remove the server from the rack.
4. Remove the top cover (see
“Remove the top cover” on page 86 ).
5. Locate the DIMM connectors. Determine which DIMM you want to remove from the server.
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ThinkSystem SR150 Maintenance Manual