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Altos R360 F2 FAQ (Frequently Asked Questions)
29.
Which DIMM would be primary In "Mirror mode"? For example, is it data copied from A1 to C1 of processor 1
when DIMM A1 and C1 of processor 1 are installed?
ANSWER:
ANSWER: DIMM A1 and C1 of processor 1 are accessed at the same time.
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30.
What is the benefit of Un-buffered ECC DIMM?
ANSWER: Un-buffered ECC DIMM is lower cost than Registered DIMM.
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31.
Is there any different in reliability between Un-buffered DIMM and Registered DIMM?
ANSWER: Un-buffered ECC DIMM and Registered DIMM have the same reliability.
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32.
One DIMM or two DIMMs configuration is suggested with Altos R360 F2?
ANSWER: Altos R360 F2 supports one DIMM or two DIMMs configuration. But please install 4 DIMMs to each
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processor for best performance.
33.
When Altos R360 F2 is equipped with two processors, can I just install 4 DIMMs in DIMM A1, B1, C1 and D1 of
processor 1? I mean in this configuration, can CPU2 still access the memory that connected to CPU1 only?
ANSWER:
ANSWER: Yes, CPU2 still can access the memory on CPU1 through the QPI (QuickPath Interconnect) between
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processors.
However, it is recommended to install DIMMs on each processor. So, each processor has its own local memory
(belong to the memory controller of this processor) which has better bandwidth and lower latency than
remote memory (belonging to the neighboring controller).
29
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