Dell PowerEdge R620 Technical Manual

Also see for PowerEdge R620: Glossary Owner's manual Owner's manual Portfolio guide Installation, maintenance and troubleshooting manual

Contents

Dell PowerEdge R620 Technical Manual Manual pdf 35 page image

35 PowerEdge R620 Technical GuideFigure 9 shows a 750W power supply unit extended from the R620 chassis.Figure 9. 750W power supply unitThe PowerEdge R620 supports up to two AC or DC power supplies with 1 + 1 redundancy,auto-sensing, and auto-switching capability.Dell power supplies have achieved Titanium efficiency levels as shown in Table 22.Table 22. Power supply efficiencyForm factor Output ClassEfficiency targets by load10% 20% 50% 100%Redundant 86mm495W AC Platinum 82.0% 90.0% 94.0% 91.0%750W AC Titanium 90.0% 94.0% 96.0% 91.0%750W AC Platinum 82.0% 90.0% 94.0% 91.0%1100W AC Platinum 89.0% 93.0% 94.5% 92.0%1100W DC N/A 80.0% 88.0% 91.0% 88.0%Thermal and acousticsOptimized thermal management makes the PowerEdge R620 cool and quiet. Benefiting from smartcooling fan speed control, the R620 can keep both high performance and good acoustics across awide range of ambient temperatures from 10°C to 35°C (50°F to 95°F) and to extended ambienttemperature ranges (see Table 33). Operating environments for the R620 can vary from the datacenter to general-use spaces. In typical and minimum configurations, the R620 is quiet enough tobe used in an office environment.Thermal designThe thermal design of the PowerEdge R620 reflects the following: Multiple sensors are monitored for thermal feedback control: The PowerEdge R620dynamically controls system cooling fan speed based on responses from all componenttemperature sensors, including processors, hard disk drives, DIMMs, storage cards and the inletambient temperature. Thermal control detects and responds to hardware configuration. Thermal