Hardware options installation 42
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UDIMM: A through H, sequentially in alphabetical order. Do not populate DIMM slots I through L.
After installing the DIMMs, use RBSU to configure Advanced ECC, online spare, or lockstep memory support.
Multi-processor Lockstep population order
For Lockstep memory mode configurations with multiple processors, populate the DIMM slots for each
processor in the following order:
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RDIMM
o
First: A, B, C, and D
o
Next: E, F, G, and H
o
Last: I, J, K, and L
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UDIMM
o
First: A, B, C, and D
o
Last: E, F, G, and H
o
Do not populate slots I, J, K, or L.
After installing the DIMMs, use RBSU to configure the system for Lockstep memory support.
Online Spare population guidelines
For Online Spare mode configurations, observe the following guidelines:
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Observe the general DIMM slot population guidelines (on page
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DIMM configuration on each channel of a processor must be identical.
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Each processor must have a valid Online Spare configuration.
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In multi-processor configurations, each processor can have a different valid Online Spare
configuration.
Single-processor Online Spare population order
For Online Spare memory mode configurations with a single processor, observe the following guidelines:
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Observe the general DIMM slot population guidelines.
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Each channel must have a valid online spare configuration.
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Each channel can have a different valid online spare configuration.
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Each populated channel must have a spare rank.
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A single dual-rank DIMM is not a valid configuration.
After installing the DIMMs, use RBSU to configure the system for Online Spare memory support.
Multi-processor Online Spare population order
For Online Spare mode configurations with multiple processors, observe the following guidelines:
•
Observe the general DIMM slot population guidelines.
•
Each channel must have a valid online spare configuration.
