Cisco UCS B420 M3 Blade Server
38
SUPPLEMENTAL MATERIAL
Each CPU controls four memory channels and 12 DIMM slots, as follows:
■
CPU1: Channels A, B, C, and D
— Bank 0 - A0, B0, C0, and D0 (blue DIMM slots)
— Bank 1 - A1, B1, C1, and D1 (black DIMM slots)
— Bank 2 - A2, B2, C2, and D2 (white DIMM slots)
■
CPU2: Channels E, F, G, and H
— Bank 0 - E0, F0, G0, and H0 (blue DIMM slots)
— Bank 1 - E1, F1, G1, and H1 (black DIMM slots)
— Bank 2 - E2, F2, G2, and H2 (white DIMM slots)
■
CPU3: Channels I, J, K, and L
— Bank 0 - I0, J0, K0, and L0 (blue DIMM slots)
— Bank 1 - I1, J1, K1, and L1 (black DIMM slots)
— Bank 2 - I2, J2, K2, and L2 (white DIMM slots)
■
CPU4: Channels M, N, O, and P
— Bank 0 - M0, N0, O0, and P0 (blue DIMM slots)
— Bank 1 - M1, N1, O1, and P1 (black DIMM slots)
— Bank 2 - M2, N2, O2, and P2 (white DIMM slots)
DIMM Population Order
Populate the DIMMs for a CPU according to
Table 24
.
Table 24
DIMM Population Order per CPU
DIMMs
per CPU
Populate
CPU 1 Slots
Populate
CPU 2 Slots
Populate
CPU 3 Slots
Populate
CPU 4 Slots
1
A0
E0
I0
M0
2
A0, B0
E0, F0
I0, J0
M0, N0
3
A0, B0, C0
E0, F0, G0
I0, J0, K0
M0, N0, O0
4
A0, B0, C0, D0
E0, F0, G0, H0
I0, J0, K0, L0
M0, N0, O0, P0
5
Not recommended for performance reasons
6
A0, B0, C0,
A1, B1, C1
E0, F0, G0,
E1, F1, G1
I0, J0, K0,
I1, J1, K1
M0, N0, O0,
M1, N1, O1
7
Not recommended for performance reasons
