Datasheet

Cisco UCS B420 M3 Blade Server
SUPPLEMENTAL MATERIAL
39
A quick reference for the recommended DIMM population order is shown in Table 25 and Table 26. CPU 1
DIMM population order is shown as an example. Pick the number of DIMMs in the table you wish to populate,
then, starting with A0, populate down Bank 0, then down Bank 1, then down Bank 2 until you reach the
number you picked. If you picked 8 DIMMs, for example, use
Table 25 and populate DIMMs in A0, B0, C0,
D0, A1, B1, C1, and D1. If you picked 6 DIMMs, for example, use Table 26 and populate DIMMs in A0, B0, C0,
A1, B1, and C1, leaving D0 and D1 empty.
8 A0, B0, C0, D0,
A1, B1, C1, D1
E0, F0, G0, H0,
E1, F1, G1, H1
I0, J0, K0, L0,
I1, J1, K1, L1
M0, N0, O0, P0,
M1, N1, O1, P1
9 A0, B0, C0,
A1, B1, C1,
A2, B2, C2
E0, F0, G0,
E1, F1, G1,
E2, F2, G2
I0, J0, K0,
I1, J1, K1,
I2, J2, K2
M0, N0, O0,
M1, N1, O1,
M2, N2, O2
10 Not recommended for performance reasons
11 Not recommended for performance reasons
12 A0, B0, C0, D0,
A1, B1, C1, D1,
A2, B2, C2, D2
E0, F0, G0, H0,
E1, F1, G1, H1,
E2, F2, G2, H2
I0, J0, K0, L0,
I1, J1, K1, L1,
I2, J2, K2, L2
M0, N0, O0, P0,
M1, N1, O1, P1,
M2, N2, O2, P2
Table 25 DIMM Population Quick Reference for CPU 1 (for 1, 2, 4, 7, 8, 10, 11, or 12 DIMMS)
CPU Channel Bank 0 Bank 1 Bank 2
A 1 5 9
B 2 6
10
1
Notes
1. Not recommended for performance reasons
C 3
7
1
11
1
D 4 8 12
Table 26 DIMM Population Quick Reference for CPU 1 (for 3, 5, 6, or 9 DIMMS)
CPU Channel Bank 0 Bank 1 Bank 2
A 1 4 7
B 2
5
1
Notes
1. Not recommended for performance reasons
8
C 3
6 9
D empty empty empty
Table 24 DIMM Population Order per CPU (continued)
DIMMs
per CPU
Populate
CPU 1 Slots
Populate
CPU 2 Slots
Populate
CPU 3 Slots
Populate
CPU 4 Slots