44 Sun Fire 280R Server Service Manual • January 2001
How to Remove a Memory Module
Memory modules for this system are next generation dual inline memory modules
(DIMMs). Each DIMM group must contain four DIMMs of equal density (for
example, four 128-Mbyte DIMMs, one in each slot in group 0, or one in each slot of
group 1). You can have memory groups with different densities (for example, 128-
Mbyte DIMMs in group 0, and 512-Mbyte DIMMs in group 1). Supported DIMM
configuration options are 128, 256, 512, and 1024 Mbytes. See the Sun Fire 280R
Server Owner’s Guide for more information.
Before You Begin
Complete these tasks:
■ “How to Power Off the System” on page 5
■ “How to Position the System for Service” on page 14
■ “How to Remove the System Cover” on page 30
■ ““How to Avoid Electrostatic Discharge” on page 35
Caution – DIMMs are made of electronic components that are extremely sensitive
to static electricity. Static electricity from your clothes or work environment can
destroy the DIMM. Do not remove any DIMM from its antistatic packaging until you
are ready to install it. Handle the modules only by their edges. Do not touch the
components or any metal parts, including the gold contacts on the bottom edge of
the module. Always wear a grounding strap when you handle the modules.
What to Do
1. Locate the memory module(s) to be removed.
2. Press down the ejection lever at each end of the DIMM connector and eject the
memory module from the socket.
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