NEC N8100-1005F User Manual page 241

Installation Order and Notes
Single channel memory configuration
Install DIMMs one by one in the ascending order of DIMM slot numbers.
Dual channel memory configuration
To activate the dual channel mode, the following conditions must be met:
– Matched DIMM configuration in each channel
– Same density*
– Same DRAM technology*
– Same DRAM bus width*
– All either single-sided or dual-sided
– Matched in both channels.
– Populate symmetrical memory slots (#1 and #3, #2 and #4).
* Contact your sales representative or dealer for detail.
The following table lists an example of the relationship between the installation condition
and the dual channel memory mode.
Installation
example
1
2
3
4
Dual channel
memory mode
Active 512MB (factory-
installed
Active 512MB (factory-
installed
Inactive 512MB (factory-
installed
512MB (factory-
Inactive
installed
DIMM group
#1 #2
None
1GB
1GB
512MB
Upgrading Your Server 9-31
#3 #4
512MB None
512MB 1GB
512MB None
None 512MB