1. Installing Internal Optional Devices
Express5800/R120g-2E User's Guide
69
Chapter 2 Preparations
1.11.8
Using Memory RAS feature
This server has RAS feature including Standard Memory feature (x4 SDDC ECC memory), Memory Mirroring
feature, Memory Sparing feature, and Memory Lock Step (x8 SDDC ECC memory) feature. Single Device Data
Correction (SDDC) allows automatic correction of memory error (multi-bit error).
Note
•
See
List of features supported by additional memory card
in
1.11.3 Memory
RAS feature
before using memory RAS feature.
•
Only the features that additional memory card supports can be used.
•
N8102-686F/687F/691/693 is not supported to x4 SDDC
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.
Memory controller
Memory controller
