Dell EMC PowerEdge R640 Installation And Service Manual page 35

Thermal restrictions
The following table lists the configurations required for efficient cooling.
Table 30. Thermal restrictions configuration
Configuration Number
of
processo
rs
PowerEdge 1
R640 (2.5 inch
hard drives x
10)
2
PowerEdge 2
R640 (2.5 inch
hard drives x 10
with NVMe
drives)
PowerEdge 1
R640
(2.5 inch hard
drives x 8)
(3.5 inch hard
drives x 4)
2
NOTE: *165 W and 150 W FO includes Intel Xeon Gold 6146 and 6144 processors.
Heatsink Processor/
DIMM blank
One 1U standard heat Not required
sink for CPU ≤ 165 W
One 1U 2-pipe heat sink Required
for CPU=200/205 W
and 150 W/165 W FO*
Two 1U standard heat Not required
sink for CPU ≤ 165 W
Two 1U 2-pipe heat sink
for CPU=200/205 W
and 150 W/165 W FO*
Two 1U standard heat Not required
sink for CPU ≤ 165 W
Two 1U 2-pipe heat sink
for CPU=200/205 W
and 150 W/165 W FO*
One 1U standard heat No
sink for CPU ≤ 165 W
One 1U 2-pipe heat sink
for CPU=150 W/165 W
FO*
One 1U 2-pipe heat sink
for CPU=200/205 W
Two 1U standard heat
sink for CPU ≤ 165 W
Two 1U 2-pipe heat sink Yes
for CPU=150 W/165 W
Two 1U 2-pipe heat sink No
for CPU=200/205 W
DIMM Maximum number of
blanks DIMM blanks
Required for 11 blanks
processor 1
Required 22 blanks
Required 22 blanks
Required for 11 blanks
processor 1
Required 22 blanks
Dell EMC PowerEdge R640 Installation and Service Manual
Fan
Five standard fans
Eight high performance
fans
Eight standard fans
Eight high performance
fans
Eight high performance
fans
Five standard fans
Eight high performance
fans
Eight standard fans
Eight high performance
fans
Technical specifications
35