Energy Star Compliance; Thermal; Acoustics - Dell PowerEdge R815 Technical Manual

Dell
Altitude
Operating
Storage
Airborne contaminant level
Class G1 or lower as defined by ISA-S71.04-1985 (G1 maximum corrosive contaminant levels
measured at ≤ 50% relative humidity)

4.6 ENERGY STAR Compliance

®
ENERGY STAR qualified configurations can be accessed from the
landing page on Dell.com.

4.7 Thermal

The R815 thermal solution includes:
•
Energy-efficient fans with lower power consumption per fan than previous 2U products.
•
Custom air baffling directs airflow through the components to maintain proper cooling while
improved chassis ventilation ensures sufficient airflow to allow the AMD G34 feature set to be
deployed in a 2U chassis.
•
Custom-designed heat sinks maintain CPU and IOB chip temperatures within thermal design
targets.
•
Highly Optimized Fan Control Algorithm:
•
Base fan speeds are a function of hardware configuration and ambient temperature to
minimize airflow for a given environment.
•
Closed-loop PID control algorithms are used for both CPU and DIMMs to maintain
appropriate thermal margin.
•
Double-refresh switching allows for DIMM temperature excursions up to 95°C while
maintaining performance and thermal design targets as follows:
o The R815 thermal algorithm monitors the thermal sensor on each DIMM to maintain
DIMM temperatures below the typical 85°C specification in normal operating
conditions.
o Under extreme operating conditions the thermal algorithm can switch the DIMMs
into Double-Refresh mode allowing an additional 10°C of thermal headroom. In
Double-Refresh mode DIMMs are allowed to operate as high as 95°C.

4.8 Acoustics

The acoustical design of the PowerEdge R815 reflects adherence to Dell's high sound quality
standards. Sound quality is different from sound power level and sound pressure level in that it
describes how humans respond to annoyances in sound, like whistles, hums, etc. One of the sound
quality metrics in the Dell specification is prominence ratio of a tone as shown in Table 6.
PowerEdge R815 Technical Guide
-16 to 3048 m (-50 to 10,000 ft)
Note: For altitudes above 2950 feet, the maximum operating
temperature is derated 1°F/550 ft.
-16 to 10,600 m (-50 to 35,000 ft)
ENERGY STAR Compliance results
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