Cisco UCS B200 M2 Specyfikacje - Strona 13

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Caveats

DIMM voltage:

■

—

Memory mirroring:

■

If you select the Memory RAS option, be aware that it is available only with an even

number of memory channels. For example, if you select six DIMMs and select

Reliability/Availability/Serviceability (RAS), mirroring will go into effect on only two

channels with two DIMMS per channel (you cannot implement RAS on three channels). In

this case, two DIMMS would go unused.

For more information regarding memory, see

Cisco UCS B200 M2 Blade Server

You can mix dual voltage DIMMs (operate at either 1.5 V or 1.35 V) and single voltage

DIMMs (operate at only 1.5 V).

Dual-voltage DIMMs can be operated in either of these modes:

• Power Saving Mode at a maximum speed of 1066 MHz

• Performance Mode at a maximum speed of 1333 MHz

If you mix both types of DIMMs in your configuration, the server forces all DIMMs to

operate in Performance Mode.

NOTE: For memory mirroring, DIMM pairing across buses must be identical.

If you only have two DIMMs, they need to be the same PID because you have

one DIMM on each of two buses.

If you have four DIMMs in a 2-CPU system, for example, you can have two

4-GB and two 8-GB DIMMs. One 4-GB/8-GB DIMM pair would located on

Channel A of CPU 1, and one 4-GB/8-GB DIMM pair would be located on

Channel D of CPU 2.

If you have four DIMMs in a 1-CPU system, for example, you can have two

4-GB and two 8-GB DIMMs. One 4-GB/8-GB DIMM pair would located on

Channel A of CPU 1, and one 4-GB/8-GB DIMM pair would be located on

Channel B of CPU 1.

CONFIGURING the SERVER

DIMM and CPU Layout on page

25.