Using Memory Ras Feature - NEC Express5800 Series User Manual

Chapter 2 Preparations

1.9.8 Using memory RAS feature

This server has RAS feature including Standard Memory feature (x4 SDDC ECC memory), Memory Mirroring
feature, Lock Step feature (x8 SDDC ECC memory), and Memory Sparing feature. Single Device Data
Correction (SDDC) allows automatic correction of memory error (multi-bit error).
The memory area on the motherboard of the server is divided into four memory channels.
Memory Mirroring and Memory Lock Step (x8 SDDC) features keep memory redundancy between memory
channels by monitoring or altering memory active/inactive status, respectively.

Note See List of features supported by additional memory card in 1.9.3 Memory RAS feature
before using memory RAS feature.

Only the features that additional memory card supports can be used.

N8102-686F/687F/691/692/693/694 are not supported to x4 SDDC.
Memory controller
Express5800/T120g User's Guide
1. Installing Internal Optional Devices
Memory controller
65