Chapter 2 Preparations
Occurrence of Rank Sparing error (When the same DIMMs are used for failing rank and spare rank)
Memory Riser #1
Isolate
Transfer to
running system
Occurrence of Rank Sparing error (When the different DIMMs are used for failing rank and spare rank)
Memory Riser #1
Transfer to
running system
Isolate
Failure
occurrence
This feature can be used under the following conditions:
•
Each memory channel must have two or more DIMMs or 3Rank or higher rank.
196
Failure occurrence
DIMM #1
DIMM #2
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
DIMM #5
DIMM #6
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
CH0
CH1
Memory Buffer #1
SMI0
Memory Controller #1
DIMM #1
DIMM #2
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
DIMM #5
DIMM #6
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
CH0
CH1
Memory Buffer #1
SMI0
Memory Controller #1
Express5800/A1040b, A2040b, A2020b, A2010b User's Guide
1. Installing / Removing Internal Options
DIMM #3
DIMM #4
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
DIMM #7
DIMM #8
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
CH2
CH3
Memory Buffer #2
SMI1
Processor
DIMM #3
DIMM #4
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
DIMM #7
DIMM #8
RANK0
RANK0
RANK1
RANK1
RANK2
RANK2
RANK3
RANK3
CH2
CH3
Memory Buffer #2
SMI1
Processor
Running
system
Standby
(spare rank)
SMI2
SMI3
Memory Controller #2
Running
system
Standby
(spare rank)
SMI2
SMI3
Memory Controller #2