Removal and replacement procedures 64
IMPORTANT: This server does not support mixing RDIMMs and UDIMMs. Attempting to mix
these two types causes the server to halt during BIOS initialization.
To identify the DIMMs installed in the server, see "DIMM slot locations (on page 91)."
To remove the component:
1. Power down the server (on page 26).
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Extend ("Extend the server from the rack" on page 27) or remove ("Remove the server from the rack" on
page 28) the server from the rack.
4. Remove the access panel ("Access panel" on page 32).
5. Remove the air baffle ("Air baffle" on page 33).
6. Remove the DIMM.
To replace the component, reverse the removal procedure.
For DIMM configuration information, see the server user guide.
System battery
If the server no longer automatically displays the correct date and time, you may need to replace the battery
that provides power to the real-time clock.
WARNING: The computer contains an internal lithium manganese dioxide, a vanadium
pentoxide, or an alkaline battery pack. A risk of fire and burns exists if the battery pack is not
properly handled. To reduce the risk of personal injury:
• Do not attempt to recharge the battery.
• Do not expose the battery to temperatures higher than 60°C (140°F).
• Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
• Replace only with the spare designated for this product.
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