Cisco UCS B200 M4 - Memory Performance

Table 2: Supported DIMM Population Order
CPU 2 installed slotsCPU 1 installed slotsDIMMs per CPU
E1A11
E1, F1A1, B12
E1, F1, G1A1, B1, C13
E1, F1, G1, H1A1, B1, C1, D14 (Blue slots)
E1, F1, G1, H1, E2A1, B1, C1, D1, A25
E1, F1, G1, H1, E2, G2A1, B1, C1, D1, A2, C26
E1, F1, G1, H1, E2, F2, G2A1, B1, C1, D1, A2, B2, C27
E1, F1, G1, H1, E2, F2, G2, H2A1, B1, C1, D1, A2, B2, C2, D28 (Blue and black slots)
E1, F1, G1, H1, E2, F2, G2, H2, E3A1, B1, C1, D1, A2, B2, C2, D2,A39
E1, F1, G1, H1, E2, F2, G2, H2, E2,
F3
A1, B1, C1, D1, A2, B2, C2, D2,A3, B310
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