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Upgrading the system memory – Acer Network Device Altos R520 User Manual

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Upgrading the system memory

Acer Altos R520 server supports eight DDR2 fully buffered DIMM slots
with four FBDIMM memory channels. Each channel can support up to 2
dual ranked DDR2 FBDIMMs. The memory channels are organized in to
two branches for support of mirrored memory configuration. Up to 8
FBDIMMs or a maximum memory size of 32 GB physical memory in
standard non-mirrored mode and 16 GB physical memory in a mirrored
configuration are supported by the server.

On the server, a pair of channels becomes a branch where each branch
consists of:

Branch 0

Channel A - DIMMA1 and DIMMA2

Channel B - DIMMB1 and DIMMB2

Branch 1

Channel C - DIMMC1 and DIMMC2

Channel D - DIMMD1 and DIMMD2