Modes Of Operation; Installing Memory Modules - Fujitsu PRIMERGY TX1320 M5 Upgrade And Maintenance Manual

– Mixing memory modules with different speeds is not supported.
– Mixing memory modules with different technologies or capacities between
two channels is not supported.
– Mixing memory modules with different part numbers is not supported.
Channel
Slot ID
DIMM# 1
DIMM# 2
DIMM# 3
DIMM# 4
Table 3: Mounting order
10.2.3

Modes of operation

– The maximum performance can be achieved in a symmetric dual-channel
configuration. Therefore both channels have to be populated with the same
amount of memory. The DRAM device technology (1 Gbit / 2 Gbit / 4 Gbit)
may vary from one channel to the other.
– If the amount of memory differs between the two channels, the system
board will run in dual-channel asymmetric mode.
– Regardless of the mode, all DIMMs will run at the highest common
frequency that is allowed by the SPD Data of the DIMMs and the maximum
speed of the selected configuration.
– Single-channel mode is used if one memory module is populated in DIMM
1A.
10.3

Installing memory modules

Upgrade and Repair Unit
(URU)
TX1320 M5
A
1A 2A
x
x
x x
x x
Upgrade and Maintenance Manual
Main memory
B
1B
x
x
x
Hardware: 5 minutes
2B
x
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