Acer Network Device Altos R520 Bedienungsanleitung PDF herunterladen (Seite 81)

Standard memory configuration

The system is capable of supporting a minimum of only one FBDIMM

installed on the DIMM A1 slot. However, for system performance

reasons, we recommend that at least two memory modules must be

installed per branch. The modules must cover the same slot position on

both channels and FBDIMM pairs must be identical with respect to size,

speed, and organization. FBDIMMs that cover adjacent slot positions

do not need to be identical.

When adding four FBDIMMs to a standard non-mirrored

configuration, the memory modules must be populated in DIMM slots

A1 and B1 first then DIMM slots C1 and D1. It allows both memory

branches to operate in parallel and simultaneously to achieve

equivalent performance.

Mirrored memory configuration

Memory mirroring is implemented in the MCH and the system BIOS.

You can configure the system to maintain mirrored copy of the data in

memory. When operating in mirrored mode, both branches operate in

lock step. In mirrored mode, branch 1 contains a replicate copy of the

data in branch 0. The minimum FBDIMM configuration to support

memory mirroring is four FBDIMMs, populated as shown in the figure

below:

All four memory modules must be identical with respect to size, speed,

and organization.

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Acer Network Device Altos R520 Bedienungsanleitung Seite 81