Table 2: Supported DIMM Population Order
CPU 2 installed slots
CPU 1 installed slots
DIMMs per CPU
E1
A1
1
E1, F1
A1, B1
2
E1, F1, G1
A1, B1, C1
3
E1, F1, G1, H1
A1, B1, C1, D1
4 (Blue slots)
E1, F1, G1, H1, E2
A1, B1, C1, D1, A2
5
E1, F1, G1, H1, E2, G2
A1, B1, C1, D1, A2, C2
6
E1, F1, G1, H1, E2, F2, G2
A1, B1, C1, D1, A2, B2, C2
7
E1, F1, G1, H1, E2, F2, G2, H2
A1, B1, C1, D1, A2, B2, C2, D2
8 (Blue and black slots)
E1, F1, G1, H1, E2, F2, G2, H2, E3
A1, B1, C1, D1, A2, B2, C2, D2,A3
9
E1, F1, G1, H1, E2, F2, G2, H2, E2,
F3
A1, B1, C1, D1, A2, B2, C2, D2,A3, B3
10
E1, F1, G1, H1, E2, F2, G2, H2, E3,
F3, G3
A1, B1, C1, D1, A2, B2, C2, D2,A3, B3,
C3
11
E1, F1, G1, H1, E2, F2, G2, H2, E3,
F3, G3, H3
A1, B1, C1, D1, A2, B2, C2, D2,A3, B3,
C3, D3
12 (Blue, black and beige
slots)
Memory Performance
When considering the memory configuration of your blade server, there are several things you need to consider.
For example:
•
When mixing DIMMs of different densities, the highest density DIMM goes in slot 1 then in descending
density.
•
Your selected CPU(s) can have some affect on performance.
•
DIMMs can be run in a 1DPC, a 2DPC, or a 3DPC configuration. 1 DPC and 2DPC can provide the
maximum rated speed that the CPU and DIMMs are rated for. 3DPC causes the DIMMs to run at a
slower speed.
Cisco UCS B200 M4 Blade Server Installation and Service Note
26
Servicing a Blade Server
Memory Performance
