Dell PowerEdge XE8640 - Page 82

Figure 42. Memory channels
Memory channels are organized as follows:
Table 57. Memory channels
Processor Channel
A
Channel
B
Channel C Channel D Channel E Channel F Channel G Channel H
Processor 1 Slots A1
and A9
Slots A7
and A15
Slots A3
and A11
Slots A5
and A13
Slots A4 and
A12
Slots A6
and A14
Slots A2 and
A10
Slots A8 and
A16
Processor
2
Slots B1
and B9
Slots B7
and B15
Slots B3
and B11
Slots B5
and B13
Slots B4 and
B12
Slots B6
and B14
Slots B2 and
B10
Slots B8 and
B16
Table 58. Supported memory matrix
DIMM type Rank per DIMM and
Data Width
DIMM capacity (GB) Speed (MT/s); Voltage (V); DIMM per
channel (DPC)
1 DIMM per channel
(DPC)
2 DIMMs per channel
(DPC)
RDIMM DR X 8 32 GB 4800 MT/s 4400 MT/s
DR X 4 64 GB 4800 MT/s 4400 MT/s
RDIMM 3DS 4R X 4 128 GB 4800 MT/s 4400 MT/s
NOTE: The processor may reduce the performance of the rated DIMM speed.
NOTE: Maximum DIMM transfer speed support dependent on CPU SKU and DIMM population.
82 Installing and removing system components