Rank Sparing Mode (Single-Dual Rank Modules) - Fujitsu PRIMERGY RX2520 M4 Upgrade And Maintenance Manual

Main memory

10.1.2.3 Rank Sparing mode (Single-Dual Rank Modules)

CPU
iMC0
channel
A B
1A 1B
# DIMMs
1 1
2
1 1
4
1 1
6
1 1
4
1 1
6
1
8
1 1
10
1 1
12
CPU
iMC0
channel
A B
1B
1A
# DIMMs
1
2
1
4
1 1
6
1 1
8
1 1
10
1 1
12
Figure 142: Rank Sparing mode (Single-Dual Rank Modules)
240
CPU 1
iMC1
C D E
1C 1D 1E 1F
1 CPU populated
1 1
1 1 1
2 CPUs populated (if all modules are same capacity)
1
1 1
1 1 1
1 1 1
2 CPUs populated (if modules have different capacities)
CPU1
iMC1
C D E
1C 1D 1E 1F
1
1
1 1
1 1 1
1 1 1
Upgrade and Maintenance Manual
iMC0
F G H
1G 1H 1J
1
1 1
1 1 1
1 1
1 1 1
1 1 1
iMC0
F G H
1G 1H 1J
2
2
2 2
2 2
2 2 2
1 2 2 2
CPU2
iMC1
J K L M
1K 1L 1M
1 1
1 1
1 1 1
CPU2
iMC1
J K L M
1K 1L 1M
2
2
2 2
2 2
2 2 2
RX2520 M4