Cisco Cisco UCS B420 M3 Blade Server Hoja De Datos

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32 DIMMs capacity total

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Select two or four DIMM kits ( 4 or 8 DIMMs) per CPU. The DIMMs for each CPU will be placed 
by the factory as shown in 

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The only supported DIMM configurations are shown in 

 and 

DIMMs are sold in matched pairs, which must be installed in pairs shown in the tables. 
Switching out one of the DIMMs within the matched pair will lead to memory errors.

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The B440 M2 server needs at least two DIMM pairs installed for each CPU for optimal 
performance

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DIMMs sold as kits are matched pairs and must remain together when installed in a particular 
pair of same-colored (blue, white, yellow, or black) pairs of slots.

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The DIMMs installed in slots for an absent CPU are not recognized.

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Memory DIMMs should be installed evenly across the installed CPUs, though it is not a 
requirement.

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Mixing DIMM speeds will cause the faster DIMMs to run at the speed of the slower DIMMs.

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Your selected CPU(s) can have some affect on performance. The CPUs must be of the same 
type.

4

1

1. Two UCS-MR-2X041RX-C, UCS-MR-2X082RX-C, or UCS-MR-2X324RX-C DIMM kits per CPU

(A0, A1) - blue slots; (C0, C1) - white slots

8

2

2. Four UCS-MR-2X041RX-C, UCS-MR-2X082RX-C, or UCS-MR-2X324RX-C DIMM kits per CPU, or two 

UCS-MR-2X082RX-C and two UCS-MR-2X324RX-C DIMM kits per CPU.

(A0, A1) - blue slots; (C0, C1) - white slots
(B0, B1) - yellow slots; (D0, D1) - black slots