Dimms Supported; Memory Configuration; Memory Speed - Dell PowerEdge T320 Technical Manual

The T320 supports the DIMMs listed in Table 9. For the latest information on supported memory,
visit Dell.com.
Capacity
(GB)
2
2
2
4
4
4
4
8
8
16
16
Flexible memory configurations are supported on the T320, ranging from capacities of 2GB to
96GB. The system supports up to 6 DIMMs. The T320 has 3 memory channels per processor, with
each channel supporting up to 2 DIMMs.
The T320 supports a flexible memory configuration according to these basic rules:
Speed: If DIMMs of different speeds are mixed, all channels across all processors operate at the

slowest DIMM's common frequency.
DIMM type: Only one type of DIMM can be used in a system. UDIMMs and RDIMMs cannot be

mixed.
The following additional memory population guidelines apply to the T320:
Up to two quad-rank (QR), dual-rank (DR), or single-rank (SR) DIMMs may be populated per

channel.
 DIMMs must be installed in each channel, starting with the DIMM farthest from the processor.
DIMMs should be installed with largest rank count to smallest. For example, if DR DIMMS are

mixed with SR DIMMs, DR DIMMS should be placed in the lowest DIMM slots, followed by the SR
DIMMs.
For more information on memory configuration, see the
Manual on Support.Dell.com/Manuals.
The T320 supports memory speeds of 1600MT/s, 1333MT/s, 1066MT/s, and 800MT/s depending on
the DIMM types installed and the configuration. All memory on all processors and channels run at
the same speed and voltage. By default, the systems run at the highest speed for the channel with
the lowest DIMM voltage and speed. The operating speed of the memory is also determined by the
Speed Ranks per
Type
(MT/s) DIMM
1333 RDIMM
1333 UDIMM
1600 RDIMM
1333 RDIMM
1333 RDIMM
1333 UDIMM
1600 RDIMM
1333 RDIMM
1600 RDIMM
1333 RDIMM
1600 RDIMM
Data
SDDC support
width
1 x8 Advanced ECC
1 x8 Advanced ECC
1 x8 Advanced ECC
2 x8 Advanced ECC
1 x4 All modes
2 x8 Advanced ECC
2 x8 Advanced ECC
2 x4 All modes
2 x4 All modes
2 x4 All modes
2 x4 All modes
Dell PowerEdge T320 Systems Owner's
Voltage
1.35
1.35
1.5
1.35
1.35
1.35
1.5
1.35
1.5
1.35
1.5