Oracle SPARC T8-2, Service Manual

Page: 89 / 188

Servicing Memory Risers and DIMMs
These topics explain how to remove and install memory risers and DIMMs in the server.
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“Memory Riser and DIMM Configuration” on page 89
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“Identifying DIMMs” on page 90
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“Memory Riser and DIMM FRU Names” on page 91
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“Add Memory to the Server” on page 93
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“Replace a Faulty DIMM” on page 97
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“Remove a Memory Riser” on page 98
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“Remove a DIMM” on page 100
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“Install a DIMM” on page 102
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“Install a Memory Riser” on page 104
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“Enable and Verify a DIMM” on page 106
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“DIMM Configuration Errors” on page 109
Memory Riser and DIMM Configuration
The server includes eight memory risers, each containing four DIMM slots. Four memory risers
are associated with each CPU.
Either 16 or 32 DIMMs may be installed in the server.
The memory configuration rules for the server are as follows:
■
All eight memory risers must be installed in all configurations.
■
In half-populated configurations (16 DIMMs) DIMMs must be installed in all
CH0
slots.
These slots have black ejector levers.
■
In fully-populated configurations (32 DIMMs), DIMMs must be installed in all slots (
CH0
and
CH1
)
Servicing Memory Risers and DIMMs 89