Memory Interleaving; Memory Test; Memory Scrub Engine; Memory Ras - Intel SC5650HCBRP Product Specification

Functional Architecture
3.3.5

Memory Interleaving

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The Intel Xeon Processor 5500 Series and Intel
following memory interleaving mode:
Bank Interleaving – Interleave cache-line data between participant ranks.
Channel Interleaving – Interleave between channel when not in Mirrored Channel Mode.
Socket Interleaving – Interleaved memory can spread between both CPU sockets when
NUMA mode is disabled, given both CPU sockets are populated and DDR3 DIMMs are
installed in slots for both sockets.
3.3.6

Memory Test

3.3.6.1 Integrated Memory BIST Engine
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The Intel Xeon Processor 5500 series and Intel
integrated Memory Built-in Self Test (BIST) engine enabled to provide extensive coverage of
memory errors at both the memory cells and the data paths emanating from the DDR3 DIMMs.
The BIOS also uses the Memory BIST to initialize memory at the end of the memory discovery
process.
3.3.7

Memory Scrub Engine

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The Intel Xeon Processor 5500 Series and Intel
memory scrub engine, which performs periodic checks on the memory cells, and identifies and
corrects single-bit errors. Two types of scrubbing operations are supported:
Demand scrubbing – Executes when an error is encountered during normal read/write
of data.
Patrol scrubbing – Proactively walks through populated memory space seeking soft
errors.
The BIOS enables both demand scrubbing and patrol scrubbing by default.
Demand scrubbing is not possible when memory mirroring is enabled. Therefore, if the memory
is configured for mirroring, the BIOS disables it automatically.
3.3.8

Memory RAS

3.3.8.1 RAS Features
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The Intel Server System SC5650HCBRP supports the following memory channel modes:
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Independent Channel Mode
•
Mirrored Channel Mode – providing Channel RAS feature
These channel modes are used in conjunction with the standard Memory Test (Built-in Self-Test
(BIST) and Memory Scrub engines to provide full RAS support.
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Xeon
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Xeon
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Xeon
Intel order number E81443-002
Intel® Server System SC5650HCBRP TPS
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Processor 5600 Series support the
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Processor 5600 Series incorporate an
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Processor 5600 Series incorporates a
Revision 1.2