Dimm Installation Requirements; Additional Requirements For Online Spare Memory Technology - Compaq 230039-001 - StorageWorks NAS Executor E7000 Model 904 Server Maintenance And Service Manual

Removal and Replacement Procedures

DIMM Installation Requirements

Observe the following DIMM configuration requirements when installing DIMM:
Note:
installation requirements. For information about third-party DIMM installation requirements, refer to
the Advanced Memory Protection white paper on the HP website at www.hp.com.
Note:
configuration requirements carefully. If the DIMMs are not configured properly, you receive an error
message during POST.

Additional Requirements for Online Spare Memory Technology

In addition to the DIMM configuration requirements for advanced ECC memory, observe the
following DIMM configuration requirements when installing DIMMs for online spare
memory:
Note:
advanced ECC memory and displays an error message during POST.
Note:
40
Use only industry-standard PC1600 registered DDR SDRAM DIMMs in 256-MB,
512-MB, 1-GB, and 2-GB capacities, and that support Error Checking and Correcting
(ECC).
Install DIMMs in groups of four, one bank at a time.
Groups of four DIMMs must be identical. Installing DIMMs of different capacities into
the same bank can degrade memory performance.
Bank A must always be populated. To ease subsequent DIMM installations, install the
DIMMs in sequential order.
HP recommends that you use only HP DIMMs. Third-party DIMMs may have additional
You must power down the server before installing additional DIMMs. Follow all DIMM
Memory board slot 1 must be populated.
Bank B on the memory board in slot 1 is always the online spare bank, even if two
memory boards are installed, and must be populated when the server is configured for
online spare memory.
DIMMs installed in the online spare bank must be of equal or greater capacity than each of
those in the remaining banks on both memory boards.
If memory board slot 1 Bank B is not populated, the system automatically switches to
When configured for online spare memory, the memory board has no hot-plug capabilities.
NAS e7000 v2 Maintenance and Service Guide