Dell PowerEdge R815 Specifications download pdf (Page 23)

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Dell PowerEdge R815 Technical Guide

Maximum shock

Operating

Half sine shock in all operational orientations of 31 G +/- 5%

with a pulse duration of 2.6 ms +/-10%

Storage

Half sine shock on all six sides of 71 G +/- 5% with a pulse

duration of 2 ms +/-10%

Square wave shock on all six sides of 27 G with velocity change

@ 235 in/sec or greater

Altitude

Operating

-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.

Storage

-16 to 10,600 m (-50 to 35,000 ft)

4.6 ENERGY STAR

Compliance

ENERGY STAR qualified configurations can be accessed from the ENERGY STAR

Compliance results 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.

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Dell PowerEdge R815 Specifications Page 23

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