NEC N8100-1575F, User Manual, Page: 333 / 378

Upgrading Your Server 11-19
The LockStep feature can be used under the following conditions:
„
Install two DIMMs that operate in parallel in memory socket.
„
All the installed DIMMs should have the same capacity.
„
Run SETUP (see Chapter 4), change parameters appropriately in the menu selected as
shown below, save the settings and exit from SETUP.
Select [Advanced]
→
[Memory Configuration submenu]
→
[Memory RAS Feature]
→
[Lock Step].
„
Install memory devices in the following order:
The following LockStep cannot be configured:
„
LockStep between memory channels of different memory controllers (CPU).
„
LockStep within the same memory channel.
2nd
4th
1st
3rd
6th
2nd
8th
4th
1-CPU configuration
FRONT REAR
2-CPU configuration
3rd
7th
1st
5th