Hardware options installation 34
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White DIMM slots denote the first slot of a channel (Ch 1-A, Ch 2-B, Ch 3-C, Ch 4-D)
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Do not mix RDIMMs and LRDIMMs.
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When one processor is installed, install DIMMs in sequential alphabetic order: A, B, C, D, E, F, and so
forth.
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When two processors are installed, install the DIMMs in sequential alphabetic order balanced between
the two processors: P1-A, P2-A, P1-B, P2-B, P1-C, P2-C, and so forth.
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For DIMM spare replacement, install the DIMMs per slot number as instructed by the system software.
For more information about server memory, see the HP website DIMM speeds are supported as indicated in the following table.
Populated slots
(per channel)
Rank
Speeds supported
(MT/s)
1, 2
Single or dual
2133
1, 2
Quad
2133
Advanced ECC population guidelines
For Advanced ECC mode configurations, observe the following guidelines:
•
Observe the general DIMM slot population guidelines (on page
•
DIMMs may be installed individually.
Online spare population guidelines
For Online Spare memory mode configurations, observe the following guidelines:
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Observe the general DIMM slot population guidelines (on page
•
Each channel must have a valid online spare configuration.
•
Each channel can have a different valid online spare configuration.
•
Each populated channel must have a spare rank. A single dual-rank DIMM is not a valid configuration.
Population order
For memory configurations with a single processor or multiple processors, populate the DIMM slots in the
following order:
•
LRDIMM: Sequentially in alphabetical order (A through H)
•
RDIMM: Sequentially in alphabetical order (A through H)
After installing the DIMMs, use HP UEFI System Utilities (on page
) to configure supported AMP modes.
Installing a DIMM
CAUTION:
To avoid damage to the drives, memory, and other system components, the air
baffle, and drive blanks must be installed when the server is powered up.
1.
Update the system ROM.
