TX120 S3
Upgrade and Maintenance Manual
235
Main memory
10.1.2 Operation modes
– 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.
Channel
A
B
Slot ID
2A
1A
2B
1B
DIMM #
2
o
4
o
o
6
o
o
o
6
o
o
o
o
Table 6: Mounting order - Mirrored Channel Mode: Single CPU
Summary of Contents for PRIMERGY TX120 S3
Page 6: ...Upgrade and Maintenance Manual TX120 S3 ...
Page 8: ...Upgrade and Maintenance Manual TX120 S3 Version history ...
Page 22: ...Upgrade and Maintenance Manual TX120 S3 Contents ...
Page 26: ...26 Upgrade and Maintenance Manual TX120 S3 Introduction ...
Page 48: ...48 Upgrade and Maintenance Manual TX120 S3 Important information ...
Page 110: ...110 Upgrade and Maintenance Manual TX120 S3 Basic software procedures ...
Page 244: ...244 Upgrade and Maintenance Manual TX120 S3 Main memory ...
Page 362: ...362 Upgrade and Maintenance Manual TX120 S3 System board and components ...
Page 418: ...418 Upgrade and Maintenance Manual TX120 S3 Cables Figure 276 Installed BBU in BBU holder ...
Page 422: ...422 Upgrade and Maintenance Manual TX120 S3 Cables ...