Power, Thermal, Acoustic; Power Supplies; Power Efficiency; Environmental Specifications - Dell PowerEdge M915 Technical Manual

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Power, Thermal, Acoustic

5.1 Power Supplies

See the PowerEdge M1000e Technical Guide
specifications.

5.2 Power Efficiency

One of the main features of blade servers is enhanced power efficiency. The M915 achieves higher
power efficiency by implementing the following features:

User-configurable power options with the M1000e Chassis Management Controller (CMC) (see
M1000e documentation online at

Improved power budgeting

VR efficiency improvements (using switching regulators instead of linear regulators)

Closed-loop thermal throttling

Use of LV DDR3 memory (lower voltage compared to DDR2)

BIOS Power/Performance options page

Active Power Controller (BIOS-based CPU P-state manager)

Ability to throttle memory

Ability to disable a processor core

Ability to turn off embedded NICs or PCIe lanes when not being used

Energy Smart components at the M1000e chassis level to selectively enable more computing
performance with less power consumption.

5.3 Environmental Specifications

Temperature
Operating
Storage
Relative Humidity
Operating
Storage
Maximum Vibration
Operating
Storage
Maximum Shock
Operating
PowerEdge M915 Technical Guide
for information on power supplies and power supply
Support.Dell.com
Table 3.

Environmental Specifications

10°C to 35°C (50°F to 95°F) with a maximum temperature
gradation of 10°C per hour
Note: For altitudes above 2950 feet, the maximum operating
temperature is derated 1oF/500ft
-40°C to 65°C (-40°F to 149°F) with a maximum temperature
gradation of 20°C per hour
20% to 80% (noncondensing) with a maximum humidity gradation
of 10% per hour
5% to 95% (noncondensing) with a maximum humidity gradation of
10% per hour
0.26Grms at 5-350Hz in operational orientations
1.54Grms at 10-250Hz in all orientations
Half sine shock in all operational orientations of 31G +/- 5% with a
pulse duration of 2.6ms +/- 10%
for further details)
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