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Dell
PowerEdge R710 Technical Guide 26
• 7.8 A @ 90 VAC
• 3.9 A @ 180 VAC
Energy Smart Enablement
The 11G family of PowerEdge servers implements aspects of Dell’s Energy Smart strategy. This strategy offers
the following:
• Energy Smart components on a portfolio level, such as high-capacity and Energy Smart power supplies
• Systems with either a lowest power footprint configuration or a best performance per watt
configuration
• Energy Smart components (such as DIMMs or hard drives) selected without cherry picking or screening
individual manufacturer’s components based on energy consumption
Energy Star Compliance
ENERGY STAR
®
qualified configurations can be accessed from the ENERGY STAR Compliance results landing page
on Dell.com.
Acoustics
The acoustical design of the PowerEdge R710 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 7.
Acoustical Performance Table 7.
Typical Configuration @ 23 ± 2 °C
Operating Mode
L
WA
-UL
(Bels)
L
pA
(dBA)
Prominent
Tones
CPUs HDDs
Power
Supplies
Optical
Drive
2 4 2 1
Idle 5.5 39 None
Stressed 5.9 42 None
The acoustical specification for the R710 is Category II-D.
Definitions
Idle: Reference ISO7779 (1999) definition 3.1.7; system is running in its OS but no other specific activity.
Stressed Processor: An operating mode per ISO7779 (1999) definition 3.1.6. The software SPECPower_ssj2008 is
utilized to stress the processors. SPECPower is set to 50% loading.
LwA – UL: The upper limit sound power level (LwA) calculated per section 4.4.2 of ISO 9296 (1988) and
measured in accordance to ISO 7779 (1999).
LpA: Average bystander A-Weighted sound pressure level. The system is placed in a rack with its bottom at 25
cm from the floor. The acoustic transducers are at the four bystander positions, ref ISO7779 (1999) Section
8.6.2.