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