About Dimms; Dimm Population Rules - Sun Oracle SPARC T3-2 Service Manual

About DIMMs

This section includes the following topics.
"DIMM Population Rules" on page 112
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"Supported Memory Configurations" on page 113
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"DIMM FRU Names" on page 114
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"DIMM Rank Classification Labels" on page 115
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DIMM Population Rules

Up to 32 DDR3 DIMMs can be installed in the server, with up to eight DIMMs
installed in each memor riser.
When installing, upgrading, or replacing DIMMs, note the following:
Only DIMM capacities of 4 Gbyte and 8 Gbyte are supported.
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All DIMMs installed in the server must have identical capacities (all 4 Gbyte or all
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8 Gbyte).
All DIMMs associated with each CMP must be identical (identical capacity and
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identical rank classification). For example, install identical DIMMs in all slots of
CMP0/MR0 and CMP0/MR1, and identical DIMMs in all slots of CMP1/MR0 and
CMP1/MR1.
To identify DIMM rank classification, see
page
The DIMM slots may be populated as 1/2 full or full.
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112 SPARC T3-2 Server Service Manual • December 2013
115.
1/2 Full—In all memory risers, install DIMMs in the slots labeled 1 and 2 in the
illustration, for a total of 16 DIMMs installed in the server. Install DIMM filler
panels in the remaining slots.
Full—In all memory risers, install DIMMs in all slots (labeled 1, 2, and 3 in the
illustration), for a total of 32 DIMMs installed in the server.
"DIMM Rank Classification Labels" on