Hp ProLiant ML370 G5 Server Bedienungsanleitung Seite 43

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Seitenansicht 42
Hardware options installation 43
The Advanced Memory Protection option is configured in RBSU. By default, the server is set to Advanced
ECC mode. For more information, refer to HP ROM-Based Setup Utility (on page 82). 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.
Memory Board 1 must always be populated with FBDIMMs installed in Bank A.
The memory subsystem for this server is divided into two memory controllers, one for each memory board.
This multiple memory board architecture provides enhanced memory performance in all AMP modes for
dual memory board configurations.
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
memory errors. Advanced ECC provides additional protection over Standard ECC because it is possible
to correct certain memory errors that would otherwise be uncorrectable and result in a server failure.
Whereas standard ECC can correct single-bit memory errors, Advanced ECC can correct single-bit
memory errors and multi-bit memory errors if all failed bits are on the same DRAM device on the
FBDIMM.
In addition to general configuration requirements ("FBDIMM installation guidelines" on page 48),
Advanced ECC memory also has the following configuration requirements:
For single-memory board configurations, FBDIMMs must be installed in sequential order, beginning
with memory board 1 - bank A.
For dual-memory board configurations, FBDIMMs must be installed sequentially on each memory
board, beginning with memory board 1 - bank A, then memory board 2 - bank A.
For dual memory board configurations, the same amount of total memory should be used on both
memory boards for maximum performance.
In Advanced ECC mode, FBDIMMs must be populated as specified in the following tables:
Single memory board configuration:
Memory board 1
configuration
Bank A
1A and 5A
Bank B
2B and 6B
Bank C
3C and 7C
Bank D
4D and 8D
1 X — — —
2 X X —
3 X X X —
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