NEC Exress5800 Series User Manual page 71

Chapter 2 Preparations
The memory mirroring feature can be used under the following conditions:
•
Install DIMMs in DIMM sockets to configure a mirror set.
• Use DIMMs having the same model number as DIMMs to be installed on a mirror set.
• See Chapter 2 (1. System BIOS) in "Maintenance Guide" to change parameters as shown below, save the
settings, and exit fromSETUP.
Advanced → Memory Configuration → Memory RAS Mode → Change to Mirroring.
•
After restarting, run SETUP again, and check if "Mirrored" is displayed for the following parameter.
Advanced → Memory Configuration → Memory Information → CPUx_DIMMx Status
•
Memory Mirroring feature cannot be used together with Memory LockStep feature.
•
Installation order depends on CPU configuration. See the figure below.
2-CPU
configuration
4th set
8th set
4th set
8th set
1st set
5th set
1st set
5th set
6th set
2nd set
6th set
2nd set
7th set
3rd set
7th set
3rd set
Express5800/R120g-2E User's Guide
1. Installing Internal Optional Devices
1-CPU
configuration
1st set
3rd set
1st set
3rd set
4th set
2nd set
4th set
2nd set
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