8
Power, thermal, and acoustics
Power
Lower overall system-level power draw is a result of Dell EMC’s breakthrough system design. PowerEdge servers maximize
performance per watt through a combination of power and cooling, energy efficient technologies, and Dell EMC PowerEdge 14G
tools. Additionally, PowerEdge servers have an extensive collection of sensors that automatically track thermal activity, which helps
regulate temperature thereby reducing server noise and power consumption.
Dell EMC Enterprise Infrastructure Planning Tool is a power planning tool that is now available as a standalone executable and will
support PSU sizing in addition to workload estimates. EPIT is located at
www.dell.com/calc
The MX740c obtains power from the MX7000 chassis which contains the power supplies. For detailed information about chassis
power please consult the MX7000 Technical Guide.
Thermal
PowerEdge servers have an extensive collection of sensors that automatically track thermal activity, which helps regulate
temperature thereby reducing server noise and power consumption. The sensors in the MX740c interact with the chassis
management services module which regulates fan speed. All fans which cool the MX740c are contained in the MX7000 chassis.
Thermal management of PowerEdge MX740c delivers high performance for the right amount of cooling to components at the
lowest fan speeds across a wide range of ambient temperatures from 10°C to 35°C (50°F to 95°F) and to extended ambient
temperature ranges (see Environmental Specifications section). The benefits to you are lower fan power consumption (lower server
system power and data center power consumption) and greater acoustical versatility.
For detailed information about thermal please consult the MX7000 Technical Guide.
Table 6. Thermal restriction matrix
Ambient Support
25 ° C
30 ° C
35 ° C
40 ° C ~ 45 ° C
Expanded Operating
Temperature
CPU
No restriction
No restriction
No restriction (The
recommended operating
temperature for
processors with Thermal
Design Power (TDP) >
165W is under 32°C)
Does not support CPU
with TDP > 140W No
Support: Gold 6146 Gold
6144 Gold 6134 Gold
6128 Gold 5122
DIMM
No restriction
No restriction
No restriction
Does not support
NVDIMM
Drives
No restriction
No restriction
No restriction
Does not support NVMe
(PCIe SSDs)
Mezzanine Cards
No restriction
No restriction
No restriction
Does not support
mezzanine cards with
power above 30W
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