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Acer AR380 F2 specifications

RDIMM, maximum two DIMMs per channel is supported.

NOTE: Populate the memory of CPU2 to same as CPU1.

NOTE: support depends on 16GB DIMM availability

Mirroring mode:

•

For mirroring mode, the memory image in channel A is maintained the same as channel C and channel

B is maintained the same as channel D. Therefore, the effective size of memory is reduced by at least

one-half.

•

The DIMM configuration in mirrored channels must be identical. Channel A & channel C with identical

DIMMs and also channel B & channel D with identical DIMMs. The DIMM type, size, manufacturer

should be the same.

•

Same rule is applied to the CPU2

•

3 DIMM per channel is only supported by single rank and dual rank RDIMM.

•

For UDIMM and quad rank RDIMM, maximum two DIMMs per channel.

Lockstep mode:

•

Channel A and channel B are paired and channel C and channel D are paired in lockstep mode.

•

Lockstep mode is the only mode to support x8 SDDC.

•

Lockstep channels must be populated identically. Channel A & channel B with identical DIMMs and

also channel C &channel D with identical DIMMs. The DIMM type, size, manufacturer should be the

same.

•

Same rule is applied to the CPU2.

•

3 DIMM per channel is only supported by single rank and dual rank RDIMM.

•

For UDIMM and quad rank RDIMM, maximum two DIMMs per channel.

Rank Sparing mode:

•

An unused spare rank is reserved on each channel. The spare rank is used to copy the contents of a

failing rank on the channel to keep a system working when a rank starts to fail. The reserved rank is

not able to be used before the other rank fail.

•

3 DIMM per channel is only supported by single rank and dual rank RDIMM.

•

For UDIMM and quad rank RDIMM, maximum two DIMMs per channel.

•

For 1 DIMM per channel configuration, only quad rank RDIMM is supported for rank sparing.