22 Technical Manual D2759 (TX150 S7)
Main memory Features
– 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 max. speed
of the selected configuration.
– Single-channel mode is used when 1 memory module is populated in
DIMM 1A.
Population rules
– Memory slot 1 / channel A (DIMM 1A) needs to be populated first.
– Within all channels memory slot 1 must be populated prior to slot 2. Slot 2
must be populated prior to slot 3.
– Install memory modules within a channel in descending order of capacity:
higher capacity in slot 1, lower capacity in slot 2.
– Mixing of RDIMM and UDIMM is not allowed.
RDIMM memory modules
Technology: DDR3 800 / 1066 / 1333 buffered single rank (SR), dual
rank (DR) or quad rank (QR) RDIMM memory modules
with ECC. Support for up to 6 RDIMM memory modules.
RDIMM memory modules are only supported by Intel
®
Quad-Core processors (Xeon 3400 series).
Total memory size: up to 32 GB
Configuration
per channel
Max. speed DIMM-3 DIMM-2 DIMM-1
1 DDR3-1333 empty empty SR/DR
2 DDR3-1066 empty empty QR
3 DDR3-1333 empty SR/DR SR/DR
4 DDR3-800 empty QR QR
5 DDR3-800 SR/DR SR/DR SR/DR
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