Single-rank and dual-rank dimms, Udimm maximum memory configurations, Installing dimms – HP ProLiant MicroServer User Manual

Page 25

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Hardware options installation 25

Single-rank and dual-rank DIMMs

DIMM configuration requirements are based on these classifications:

Single-rank DIMM—One set of memory chips that is accessed while writing to or reading from the
memory.

Dual-rank DIMM—Two single-rank DIMMs on the same module, with only one rank accessible at a time.

The server memory control subsystem selects the proper rank within the DIMM when writing to or reading

from the DIMM.
Dual-rank DIMMs provide the greatest capacity with the existing memory technology. For example, if current

DRAM technology supports 2-GB single-rank DIMMs, a dual-rank DIMM would be 4 GB.

UDIMM maximum memory configurations

The server supports a maximum of 8 GB using 4-GB dual-rank UDIMMs.

Installing DIMMs

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.

For more information about product features, specifications, options, configurations, and compatibility, see

the product QuickSpecs on the HP Product Bulletin website (

http://www.hp.com/go/productbulletin

).

To remove the component:

1.

Power down the server (on page

6

).

2.

Place the server on a flat, level work surface.

3.

Open the panel door (on page

6

).

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