Hp ProLiant ML350p Gen8 Server Manual de usuario descargar pdf (Pagina 63)

Hardware options installation 63

DIMM identification

To determine DIMM characteristics, use the label attached to the DIMM and the following illustration and

table.

Item Description Definition

Size —

Rank 1R = Single-rank

2R = Dual-rank

3R = Three-rank

4R = Quad-rank

Data width x4 = 4-bit

x8 = 8-bit

Voltage rating L = Low voltage (1.35V)

U = Ultra low voltage (1.25V)

Blank or omitted = Standard

Memory speed 14900 = 1866-MT/s

12800 = 1600-MT/s

10600 = 1333-MT/s

8500 = 1066-MT/s

DIMM type R = RDIMM (registered)

E = UDIMM (unbuffered with ECC)

L = LRDIMM (load reduced)

H = HDIMM (HyperCloud)

Memory configurations

To optimize server availability, the server supports the following AMP modes:

• Advanced ECC—provides up to 4-bit error correction and enhanced performance over Lockstep mode.

This mode is the default option for this server.

• Online spare memory—provides protection against failing or degraded DIMMs. Certain memory is

reserved as spare, and automatic failover to spare memory occurs when the system detects a DIMM that

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Hp ProLiant ML350p Gen8 Server Manual de usuario Pagina 63