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Cisco UCS B420 M4 Blade Server
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SUPPLEMENTAL MATERIAL
DIMM and CPU Layout
Memory is organized as shown in
Figure 8
UCS B420 M4 Memory Organization
CPU 1
CPU 2
48 DIMMS
4 memory channels per CPU
3 DIMMs per channel
CPU 3
CPU 4
Channel A
Channel B
Channel C
Channel D
Channel E
Channel F
Channel G
Channel H
Channel M
Channel N
Channel O
Channel P
Channel I
Channel J
Channel K
Channel L
A1
A2
A3
B3
C3
D3
I3
J3
K3
I3
M3
N3
O3
P3
E3
F3
G3
H3
B1
B2
C1
C2
D1
D2
Bank 1
Bank 2
Bank 3
E1 E2
F1 F2
G1 G2
H1 H2
Bank 1
Bank 2
Bank 3
Bank 1
Bank 2
Bank 3
M1 M2
N1 N2
O1 O2
P1 P2
I1
I2
J1
J2
K1
K2
I1
I2
Bank 1
Bank 2
Bank 3