Thermal Restrictions - Dell EMC PowerEdge R940 Installation And Service Manual

Thermal restrictions

Following table lists the configuration required for efficient cooling:
Table 32. Thermal restriction for efficient cooling
Configuration Number of
processors
Eight 2.5 inch 2
hard drive
system
4
Twenty four 2.5 2
inch hard drive
system
4
Table 33. NIC card slot restrictions
Configuration
Eight 2.5-inch hard drive system
Twenty four 2.5-inch hard drive system
32 Technical specifications
Heatsink
Two heat sinks for CPU <
165W
Two heat sinks for CPU ≥ 165
W
Four standard heat sinks for
CPU < 165 W
Four heat sinks CPU ≥ 165 W
Two standard heat sinks for
CPU < 165W
Two heat sinks for CPU ≥ 165
W
Four standard heat sinks for
CPU < 165 W
Four heat sinks for CPU ≥ 165
W
Slot restriction
Slots 1, 5, and 6 do not support NIC
cards
Slots 1, 5, and 6 do not support NIC
cards
Processor blank DIMM
blanks
Not required 12
Not required 24
Not required 12
Not required 24
Ambient restriction
35°C
35°C
Fresh air Fan
Yes eight standard
fans
No
Yes eight standard
fans
No
Yes eight standard
fans
No
Yes eight standard
fans
No