1. Installing Internal Optional Devices
Express5800/T120d User’s Guide
69
Chapter 2 Preparations
1.10.7
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. SDDC (Single
Device Correction) allows automatic correction of memory error (multi-bit error).
Note
Refer to
List of features supported by additiional memory board in 1.10.3 Memory RAS
Feature
before using memory RAS feature.
Only the features that additiional memory board support can be used.
N8102-478F is not supported to x4 SDDC.
The memory area on the motherboard of the server is divided into three 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
