Cisco 8GB DDR3 1600MHz UCS-MR-1X082RY-A= Benutzerhandbuch

When considering the memory configuration of your server, you should take into account the following: 

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The server supports 1, 2, or 3 DIMMs per channel for single- or dual-rank DIMMs.

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The server supports 1, 2, or 3 DIMMs per channel for quad-rank DIMMs.

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For optimum performance, populate at least one DIMM per memory channel per CPU.

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The server supports registered DIMMs (RDIMMs) or load-reduced DIMMS (LRDIMMs), however, 
do not mix RDIMMs and LRDIMMs in a server.

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UDIMMs and non-ECC DIMMs are not supported.

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Each channel has three DIMM slots (for example, channel A = slots A1, A2, and A3).

— A channel can operate with one, two, or three DIMMs installed.

— If a channel has only one DIMM, populate slot 1 first (the blue slot).

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When both CPUs are installed, populate the DIMM slots of each CPU identically.

— Fill bank 1 blue slots in the channels first: A1, E1, B1, F1, C1, G1, D1, H1

— Fill bank 2 black slots in the channels second: A2, E2, B2, F2, C2, G2, D2, H2

— Fill bank 3 black slots in the channels third: A3, E3, B3, F3, C3, G3, D3, H3

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Any DIMM installed in a DIMM socket for which the CPU is absent is not recognized.

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Observe the DIMM mixing rules shown in 

DIMM Size
RDIMM = 4, 8, or 16 GB

LRDIMM = 32 GB

No—Must be same size in 

the same bank.
 

 

 

You cannot mix 32 GB 

LRDIMMs with any RDIMM

Yes—Different banks can use 

different DIMM sizes (as long 

as all DIMMs in a single bank 

use the same DIMM size).

 

You cannot mix 32 GB 

LRDIMMs with any RDIMM

DIMM Speed 
1333 or 1600 MHz

1

1. Only 1333- and 1600-MHz DIMMs are currently available for the C240 M3 server.

No—Must be same speed in 

the same bank.

Yes—but if DIMMs of mixed 

speed are used, the server 

will clock down to the lowest 

speed.

DIMM Type
RDIMMs or LRDIMMs

You cannot mix LRDIMMs 

with RDIMMS

You cannot mix LRDIMMs with 

RDIMMS

DIMMs will run at 1333 MHz 

at either 1.35 V or 1.5 V

DIMMs will run at 1066 MHz at 

either 1.35 V or 1.5 V