NEC N8100-1668F, Руководство пользователя

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Upgrading Your Server 9-49
The memory 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] → [Memory RAS Mode] → [Lock Step].

After SETUP finishes, rerun SETUP and make sure that the installed DIMM status is
[Lock Step].

Install memory devices in the following order:
The following memory LockStep cannot be configured:

Memory LockStep between memory channels of different memory controllers (CPU)

Memory LockStep within the same memory channel
Notes on configuring memory LockStep
In memory LockStep configuration, [Memory RAS Mode] menu is changed from "LockStep" to
"Independent" in the following cases:

When you additionally install DIMMs that unable to configure memory LockStep

When you remove DIMMs that takes down the memory LockStep
1-CPU
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