NEC EXP805 User Manual page 85

Chapter 2 Preparations
The following mirroring cannot be configured.
● Memory mirroring in the same memory channel
Notes for the setting of memory mirroring
Even if "Mirrored Memory with Advanced ECC Support" is set in "Advanced Memory Protection" and
Memory Mirroring Configuration is selected, in case DIMM configuration that cannot constitute
memory mirroring due to expansion or removal of DIMM is detected, "Advanced Memory Protection"
operates as "Advanced ECC Support" configuration.
In this case,"Advanced ECC Support" is displayed in POST's "Advanced Memory Protection Mode".
IML also records the relevant error events.
Notes for replacements at failure
At the time of failure, identify damaged DIMM(s) from IML and replace DIMM(s) one by one.
 When using Memory Mirroring Function, install 12 DIMMs per CPU.
Note
 Use memories with the same product number for the device.
 Partial Mirror supports only Gold5200 series /Gold6200 series /Platinum8200
series of Intel Xeon processor.
Express5800/R120h-2M (2nd-Gen) User's Guide
1. Installing Internal Optional Devices
85