Dell PowerEdge R730 Technical Manual

Also see for PowerEdge R730: Owner's manual Owner's manual Getting Started With Your System Owner's manual Getting started

Contents

Dell PowerEdge R730 Technical Manual Manual pdf 40 page image

40 PowerEdge R730 and R730xd Technical GuideThermal and acousticsThe R730 and R730xd thermal management delivers high performance through optimized coolingof components at the lowest fan speeds across a wide range of ambient temperatures from 10°C to35°C (50°F to 95°F) and to extended ambient temperature ranges. These optimizations result inlower fan power consumption for lower total system power and data center power consumption.Thermal designThe thermal design of the PowerEdge R730 and R730xd reflects the following: Optimized thermal design: The system layout is architected for optimum thermal design. Systemcomponent placement and layout are designed to provide maximum airflow coverage to criticalcomponents with minimal expense of fan power. Comprehensive thermal management: The thermal control system regulates the system fanspeeds based on feedback from system component temperature sensors, as well as for systeminventory and subsystem power draw. Temperature monitoring includes components such asprocessors, DIMMs, chipset, system inlet air temperature, hard disk drives, NDC and GPU. Open and closed loop fan speed control: Open loop fan control uses system configuration todetermine fan speed based on system inlet air temperature. Closed loop thermal control usestemperature feedback to dynamically adjust fan speeds based on system activity and coolingrequirements. User-configurable settings: With the understanding and realization that every customer has aunique set of circumstances or expectations from the system, in this generation of servers, wehave introduced limited user-configurable settings in the iDRAC8 BIOS setup screen. For moreinformation, see theDell PowerEdge R730 and R730xd Owner’s Manual onDell.com/Support/Manuals and “Advanced Thermal Control: Optimizing across Environmentsand Power Goals” on Dell.com. Cooling redundancy: The R730 and R730xd allow N+1 fan redundancy, allowing continuousoperation with one fan failure in the system.Acoustical designDell focuses on sound quality in addition to sound power level and sound pressure level. Soundquality describes how disturbing or pleasing a sound is interpreted, and Dell references a number ofpsychacoustical metrics and thresholds in delivering to it. Tone prominence is one such metric.Sound power and sound pressure levels increase with greater populations or higher utilization, whilesound quality remains good even as the frequency content changes. A reference for comparison tosound pressure levels for familiar noise sources is given in Table 23. An extensive description of DellEnterprise acoustical design and metrics is available in the Dell Enterprise Acoustics white paper.