Memory Clock; Memory Ras Feature - NEC N8100-1575F User Manual

11-14 Upgrading Your Server
IMPORTANT:
If CPU2 is not installed, CPU2_DIMM1 through CPU2_DIMM4
are not available.
If you are going to install N8102-340/341, install DIMMs starting
from the smallest slot number.
NOTE:
SDDC feature. To use x4 SDDC feature, additional 2-GB/4-GB
memory board is required.

Memory Clock

Memory clock speed depends on CPU model installed.
Xeon E5504/L5506
Always operates at 800MHz.
Xeon L5520
Operates at 1066MHz.
May operate at 800MHz depending on memory configuration.

Memory RAS Feature

The server supports LockStep (x8 SDDC) feature as memory RAS feature. For more informaton,
see "Using the Memory RAS Features" described later.
To use x4 SDDC feature, you need to remove the factory-installed DIMMs and install 2GB/4GB
DIMMs.
The additional 1-GB memory board is unavailable for x4