Hp ProLiant BL460c Gen8 Server Blade User Manual Page 33

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Hardware options installation 33
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:
o A single dual-rank DIMM is not a valid configuration.
o LRDIMMs are treated as dual-rank DIMMs.
Lockstep Memory population guidelines
For Lockstep memory mode configurations, observe the following guidelines:
Observe the general DIMM slot population guidelines (on page 32).
DIMM configuration on all channels of a processor must be identical.
In multi-processor configurations, each processor must have a valid Lockstep Memory configuration.
In multi-processor configurations, each processor may have a different valid Lockstep Memory
configuration.
When high performance heatsinks are installed on the server blade, do not install DIMMs in channel 2
or channel 4.
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)
UDIMM: A through D, sequentially in alphabetical order. Do not populate DIMM slots E through H.
After installing the DIMMs, use RBSU to configure Advanced ECC, online spare, or lockstep memory support.
Installing a DIMM
CAUTION: To avoid damage to the hard drives, memory, and other system components, the air
baffle, drive blanks, and access panel must be installed when the server is powered up.
CAUTION: To avoid damage to the hard drives, memory, and other system components, be sure
to install the correct DIMM baffles for your server model.
1. Power down the server ("Power down the server blade" on page 11).
2. Remove the server blade (on page 12).
3. Remove the access panel (on page 13).
4. Remove all DIMM baffles ("Remove the DIMM baffle" on page 13).
5. Locate the DIMM tool ("DIMM tool location" on page 10) and remove it from the DIMM baffle.
6. Use the DIMM tool to open the DIMM slot.
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