HP ML150 HP ProLiant ML100 Series Server User Guide - Page 27

Advanced ECC population guidelines, Single-processor Advanced ECC population order

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Page 27 highlights

• Populate DIMM slots for a processor only if the processor is installed. • To maximize performance in multi-processor configurations, distribute the total memory capacity between all processors as evenly as possible. • Do not mix Unbuffered and Registered PC3 DIMMs. • Each channel supports up to two Unbuffered DIMMs. • If quad-rank DIMMs are installed for a processor, a maximum of two DIMMs can be installed on each channel for that processor. If a channel contains quad-rank DIMMs, the quad-rank DIMM must be installed first on that channel. DIMM speeds are supported as indicated in the following table. Populated slots (per channel) Rank Speeds supported (MHz) 1 Single- or dual-rank 800, 1333, 1066 1 Quad-rank 800, 1066 2 Single- or dual-rank 800, 1066 2 Single-, dual-, or quad-rank 800 Advanced ECC population guidelines For Advanced ECC mode configurations, observe the following guidelines: • Observe the general DIMM slot population guidelines (on page 26). • DIMMs may be installed individually. Single-processor Advanced ECC population order For Advanced ECC mode configurations with a single processor, populate the DIMM slots in the following order: • RDIMM: Sequentially in alphabetical order (A through F) • UDIMM: Sequentially in alphabetical order (A through F). Multi-processor Advanced ECC population order For Advanced ECC mode configurations with multiple processors, populate the DIMM slots for each processor in the following order: • RDIMM: Sequentially in alphabetical order (A through F) • UDIMM: Sequentially in alphabetical order (A through F). Lockstep Memory population guidelines For Lockstep memory mode configurations, observe the following guidelines: • Observe the general DIMM slot population guidelines (on page 26). • Always install DIMMs in channels 1 and 2 for each installed processor. • Do not install DIMMs in channel 3 for any processor. Hardware options installation 27

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Hardware options installation 27
•
Populate DIMM slots for a processor only if the processor is installed.
•
To maximize performance in multi-processor configurations, distribute the total memory capacity
between all processors as evenly as possible.
•
Do not mix Unbuffered and Registered PC3 DIMMs.
•
Each channel supports up to two Unbuffered DIMMs.
•
If quad-rank DIMMs are installed for a processor, a maximum of two DIMMs can be installed on
each channel for that processor.
If a channel contains quad-rank DIMMs, the quad-rank DIMM must be installed first on that channel.
DIMM speeds are supported as indicated in the following table.
Populated slots
(per channel)
Rank
Speeds supported
(MHz)
1
Single- or dual-rank
800, 1333, 1066
1
Quad-rank
800, 1066
2
Single- or dual-rank
800, 1066
2
Single-, dual-, or quad-rank
800
Advanced ECC population guidelines
For Advanced ECC mode configurations, observe the following guidelines:
•
Observe the general DIMM slot population guidelines (on page
26
).
•
DIMMs may be installed individually.
Single-processor Advanced ECC population order
For Advanced ECC mode configurations with a single processor, populate the DIMM slots in the following
order:
•
RDIMM: Sequentially in alphabetical order (A through F)
•
UDIMM: Sequentially in alphabetical order (A through F).
Multi-processor Advanced ECC population order
For Advanced ECC mode configurations with multiple processors, populate the DIMM slots for each
processor in the following order:
•
RDIMM: Sequentially in alphabetical order (A through F)
•
UDIMM: Sequentially in alphabetical order (A through F).
Lockstep Memory population guidelines
For Lockstep memory mode configurations, observe the following guidelines:
•
Observe the general DIMM slot population guidelines (on page
26
).
•
Always install DIMMs in channels 1 and 2 for each installed processor.
•
Do not install DIMMs in channel 3 for any processor.