Memory Configurations; Memory Speed; Table 9. Dimms Supported - Dell PowerEdge T320 Technical Manual

The T320 supports the DIMMs listed in Table 9. For the latest information on supported memory,
visit Dell.com/PowerEdge.
Capacity
(GB)
2
2
4
4
4
4
8
8
16
16
32

Memory configurations

Flexible memory configurations are supported on the T320, ranging from capacities of 2GB to
192GB. The system supports up to six DIMMs. The T320 has three memory channels per processor,
with each channel supporting up to two 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 from 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 Dell.com/Support/Manuals.

Memory speed

The T320 supports memory speeds of up to 1600MT/s, depending on the DIMM types installed and
the configuration. The loading within a channel significantly affects memory speed.
Table 10 illustrates the maximum achievable speed of the Intel Xeon E5-2400 and E5-2400 v2
product families based on memory loads.

Green boxes are defaults for performance per watt

White boxes (with lower voltage) can save power but will run at slower speeds

White boxes (with higher voltage) can be custom configured in the bios
20 PowerEdge T320 Technical Guide
Table 9.
DIMMs supported
Speed Ranks per
Type
(MT/s) DIMM
1600 UDIMM
1600 RDIMM
1600 RDIMM
1600 UDIMM
1600 UDIMM
1600 RDIMM
1600 RDIMM
1600 RDIMM
1600 RDIMM
1600 RDIMM
1333 RDIMM
Data
SDDC support
width
1 x8 Advanced ECC
1 x8 Advanced ECC
2 x8 Advanced ECC
1 x8 Advanced ECC
2 x8 Advanced ECC
1 x8 Advanced ECC
1 x4 All modes
2 x4 All modes
2 x4 All modes
2 x4 All modes
4 x4 All modes
Dell PowerEdge T320 Systems Owner's
Voltage
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35