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Removal
Remove a DIMM as described in the following procedure.
IMPORTANT:
the metal frame of the server to discharge static electricity from your body before handling
the DIMM. Do not touch the DIMM terminals or on-board parts with your fingers or place
the DIMM directly on the desk. For more information on static electricity, refer to the
"Anti-static Measures" section.
NOTE:
To remove a failed DIMM, check the error message appearing during POST or via
NEC ESMPRO to identify the DIMM socket (group) in which the failed DIMM is
installed.
1.
See the section "Preparing for Installation and Removal" described earlier.
2.
Unlock the front bezel using the security key, and remove the front bezel.
3.
Remove the memory board according to "Memory Board" described earlier.
4.
Open the levers at both ends of the socket from which you remove the DIMM.
The DIMM is unlocked and ready for removal.
5.
Remove the DIMM from the paired connector.
6.
Replace the memory board removed in Step 3.
7.
Replace the front bezel.
8.
Power on the server and make sure that the POST displays no error messages.
If the POST displays an error message, note the message and refer to the POST error messages listed in
Chapter 8.
Start the SETUP and select [Advanced] → [Memory Configuration] → [Memory Retest] → [Enabled] to
9.
clear the error information about the removed DIMM slot. (See Chapter 4 for details.)
10.
Select "Yes" for [Reset Configuration Data] on the Advanced menu.
This setting is required to change the hardware configuration data. See Chapter 4 for details.
Memory Mirroring
The server supports the Memory Mirroring feature.
To use Memory Mirroring feature, select the supported function from the BIOS Setup Utility in the configuration
enabling the relevant environment build-up.
Memory Mirroring Feature
The memory mirroring feature places a memory board as spare memory in standby state. If a memory board in use
encounters an uncorrectable error, the memory mirroring feature switches to the memory board in standby. In order to
use this feature, the memory board in use and the standby memory board should be combined.
Available combinations are:
Mirroring with a pair of memory boards A and B and a pair of memory boards C and D
To enable the memory mirroring feature, the combined memory boards must have DIMMs of the same size and
capacities.
BIOS Setting
Start SETUP and select [Advanced] → [Memory Configuration] → [Memory RAS Feature] and set as follows:
To enable the memory mirroring feature: Select [Mirror].
The DIMM is extremely sensitive to static electricity. Make sure to touch
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