HP 195294-001 - ProLiant - ML370R Setup And Installation Manual page 79

Installing Hardware Options
Standard Memory Configurations
You can expand server memory to 12 GB. In the maximum standard memory
configuration, all six DIMM slots are populated with 2-GB ECC registered DDR
DIMMs.
NOTE: With Advanced ECC protection, the server can detect and correct four-bit errors in a
single DRAM DIMM.
Online Spare Memory Configurations
With online spare memory support, you can configure primary server memory for up
to 8 GB of ECC DDR memory and configure an additional 4 GB of memory for
online spare memory support. In the online spare memory configuration, all six
DIMM slots are populated with 2-GB ECC registered DDR DIMMs.
In the online spare configuration, the ROM will automatically configure the last
populated bank as the spare memory. If only banks A and B are populated, bank B
will be the spare bank. If banks A, B, and C are populated, bank C will be the spare
bank. If DIMMs in a non-spare bank exceed the limit for the single-bit correctable
errors threshold as defined by the Pre-Failure Warranty, the system copies the
memory contents of the failing bank to the spare bank. The system then deactivates
the failing bank and automatically switches over to the redundant bank.
After installing DIMMs, use RBSU to configure the system for online spare memory
support. Refer to "Configuring Online Spare Memory" in Chapter 7 for additional
information about enabling and configuring online spare memory support.
IMPORTANT: For online spare memory configurations, adhere to the guidelines for both
standard ECC and online spare DIMM installation. Refer to the sections "Standard ECC DIMM
Installation Guidelines" and "Online Spare DIMM Installation Guidelines."
Standard ECC DIMM Installation Guidelines
You must observe the following guidelines when installing additional memory:
•
Always install memory in pairs of two identical DIMMs.
•
DIMMs installed in the server must be registered DDR, 2.5-volts, 72-bits wide,
and ECC.
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