EnergySMART Enablement, Acoustics | Dell R610 specification

Dell™ PowerEdge™ R610 Technical Guidebook

G. EnergySMART Enablement

The 11G family implements aspects of Dell’s new Energy Smart strategy.

Major differences include:

•Discontinuing Energy Smart-branded servers with limited configurations and instead offering

Energy Smart components on a portfolio level, such as high capacity and Energy Smart power supplies

•Allowing customers to order either a lowest power footprint configuration or a best performance-per-watt configuration

•Offering Energy Smart selected components such as DIMMs or hard drives, but not “cherry picking" or screening individual manufacturers' components based on energy consumption.

H.Acoustics

The acoustical design of the PowerEdge R610 reflects the following:

•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, and this is listed in the table below.

•Office environment acoustics. Compare the values for LpA in the table below and note that they are lower than ambient noise levels of typical office environments.

•Hardware configurations affect system noise levels. Dell’s advanced thermal control provides for optimized cooling with varying hardware configurations. Most typical configurations will perform as listed in the table below. However some less typical configurations and components can result in higher noise levels, for example, a system configured with a PERC6/E card (noted in table below). (Please note that dBA values are not additive.)

•Noise ramp and descent at bootup.

•Fan speeds, hence noise levels, ramp during the boot process in order to add a layer of protection for component cooling in the case that the system were not to boot properly.

•The power supplies are passive in the R610, that is, they contain no internal fans.

After power is connected to the power supplies, initialization of power supply communication with the server’s fan control firmware takes place and assesses if cooling is required in standby mode. It is therefore normal for chassis fan #1 to operate at full speed for approximately 30 seconds after power is connected to the system. The fan will ramp down to a full stop after this time period in < 25° C ambient conditions.