Hp BL2X220C Manuale Utente Scaricare il pdf (Pagina 24)

Hardware options installation 24

DIMM identification

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

table.

Item Description Definition

1 Size —

2 Rank 1R = Single-rank

2R = Dual-rank

4R = Quad-rank

3 Data width x4 = 4-bit

x8 = 8-bit

4 Voltage rating L = Low voltage (1.35v)

Blank or omitted = Standard

5 Memory speed 10600 = 1333-MHz

8500 = 1066-MHz

6 DIMM type R = RDIMM (registered)

E = UDIMM (unbuffered with ECC)

For the latest supported memory information, see the QuickSpecs on the HP website

(http://www.hp.com

Memory configurations

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

• Advanced ECC—provides the greatest memory capacity for a given DIMM size, while providing up

to 4-bit error correction. This mode is the default option for this server blade.

• Mirrored Memory—provides maximum protection against failed DIMMs. Uncorrectable errors in one

channel are corrected by the mirror channel.

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Hp BL2X220C Manuale Utente Pagina 24