Sparing mode – Acer AR360 F1 User Manual
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3 System upgrades
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Sparing mode
•
In this mode, if system detects degrading memory and system still
not crash, the data in failed channel will be copied to spare
channel. Failed channel is then isolated and spare channel
becomes active. But if any uncorrectable error happens before the
isolation, it will still cause the system stop normal operation.
•
Channel 3 is the spare channel. Therefore, the effective size will be
reduced by one-third.
•
Follow the population rules described in independent mode.
•
Sparing mode need all three channels with identical DIMMs. 1A,
2A and 3A should be the same type, size and manufacturer. 1B, 2B
and 3B memory should be the same type, size and manufacturer.
1C, 2C and 3C memory should be the same type, size and
manufacturer. Same rule is applied to CPU2.
•
Intel® Xeon® Processor 5500 Series CPUs do NOT support the
memory sparing mode.
Sparing mode single processor configuration:
Notes: 1. Place DIMMs in “X” location.
2. DIMM population must correspond to the above tables.
3. DIMM modules support 1 GB, 2 GB and 4 GB DIMMs.
4. DIMM modules support 8 GB and 16 GB DIMMs (support
depends on availability).
5. Do not mix UDIMMs with RDIMMs.
6. 3-DIMM per channel configuration is only available for
single/dual rank RDIMM.
Channel 1
DIMM slots
Channel 2
DIMM slots
Channel 3
DIMM slots
Notes
Configuration
1C
1B
1A
2C
2B
2A
3C
3B
3A
A
X
X
X
B
X
X
X
X
X
X
C
X
X
X
X
X
X
X
X
X
SR, DR RDIMMS
ONLY