Acer Altos R510, User Manual

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89
Memory Sparing
To provide a more fault tolerant system, the Altos R510 includes
specialized hardware to support fail-over to a spare DIMM device in
the event that a primary DIMM in use exceeds a specified threshold of
runtime errors. One of the DIMMs installed per channel will not be
used, but kept in reserve. In the event of significant failures in a
particular DIMM, it and its corresponding partner in the other channel
(if applicable), will, over time, have its data copied over to the spare
DIMM(s) held in reserve, When all the data has been copied, the
reserve DIMM(s) will be put into service and the failing DIMM will be
removed from service. Only one sparing cycle is supported. If this
feature is not enabled, then all DIMMs will be visible in normal address
space.
Please refer to the “Memory Configuration” section in “BIOS Setup” to
enable the memory sparing feature.
The table below lists the suggested memory population for memory
sparing.
DIMM
1B
DIMM
1A
DIMM
2B
DIMM
2A
DIMM
3A
DIMM
3B
Total Memory
Physical
Memory
Detected
by OS
512MB 512MB 512MB
(spare)
512MB
(spare)
2GB 1GB
1GB 1GB 1GB
(spare)
1GB
(spare)
4GB 2GB
2GB 2GB 2GB
(spare)
2GB
(spare)
8GB 4GB
512MB 512MB 512MB 512MB 512MB
(spare)
512MB
(spare)
3GB 2GB