Memory Options - HP ProLiant DL380 Maintenance And Service Manual

To replace the component, reverse the removal procedure.

Memory options

This server contains eight FBDIMM slots. You can expand server memory by installing supported
Registered DDR-2 FBDIMMs.
Memory configurations
The server supports the following Advanced Memory Protection (AMP) options to optimize server
availability.
•
Advanced ECC—supports up to 64 GB of active memory using 8-GB FBDIMMs.
•
Online Spare Memory providing additional protection against degrading FBDIMMs—supports up to
48 GB of active memory and 16 GB of online spare memory using 8-GB FBDIMMs.
•
Mirrored Memory providing protection against failed FBDIMMs—supports up to 32 GB of active
memory and 32 GB of mirrored memory using 8-GB FBDIMMs.
For the latest memory configuration information, see the QuickSpecs on the HP website
(http://www.hp.com).
The Advanced Memory Protection option is configured in RBSU. By default, the server is set to Advanced
ECC mode. For more information, see "HP ROM-Based Setup Utility (on page 77)." If the configured AMP
mode is not supported by the installed FBDIMM configuration, the system boots in Advanced ECC mode.
The following configuration requirements apply to all AMP modes:
•
FBDIMMS must be ECC Registered DDR-2 SDRAM FBDIMMs.
•
FBDIMMs must be installed in pairs.
•
FBDIMM pairs in a memory bank must have identical HP part numbers.
•
FBDIMMS must be populated as specified for each AMP memory mode.
The memory subsystem for this server is divided into two branches. Each memory branch is essentially a
separate memory controller. The FBDIMMs map to the two branches as indicated in the following table:
Branch 0
FBDIMM 1A
FBDIMM 3A
FBDIMM 2C
FBDIMM 4C
This multi-branch architecture provides enhanced performance in Advanced ECC mode. The concept of
multiple branches is important for the operation of online spare mode and mirrored memory mode.
If the server contains more than 4 GB of memory, consult the operating system documentation about
accessing the full amount of installed memory.
Advanced ECC memory
Advanced ECC memory is the default memory protection mode for this server. In Advanced ECC, the
server is protected against correctable memory errors. The server provides notification if the level of
correctable errors exceeds a pre-defined threshold rate. The server does not fail because of correctable
Branch 1
FBDIMM 5B
FBDIMM 7B
FBDIMM 6D
FBDIMM 8D
Removal and replacement procedures 57