Dell PowerEdge M820 Technical Manual

Also see for PowerEdge M820 Systems: Manual Command reference guide Owner's manual Information update Release notes

Contents

Dell PowerEdge M820 Technical Manual Manual pdf 28 page image

28 PowerEdge M820 Technical GuideFeature Descriptionaccessed through Dell iDRAC7 Enterprise and OpenManage Power Centerthat allows policy-based management of power and thermals at theindividual server, rack and data center level.Hot spare reduces power consumption of redundant power supplies.Thermal control of fan speed optimizes the thermal settings for yourenvironment to reduce fan consumption and lower system powerconsumption.Idle power enables Dell servers to run as efficiently when idle as when at fullworkload.Dell Fresh Air coolingWith the thermal design and reliability of Dell products, certainconfigurations have the capability to operate at excursion-basedtemperatures beyond the industry standard of 35°C (95°F) up to 45°C (113°F)for excursionary periods of time and up to a 26°C dew point at 90% relativehumidity without impacting your availability model. Find additionalinformation at Dell.com/FreshAir.Rack infrastructureDell offers some of the industry’s highest efficiency power infrastructuresolutions, including: Power distribution units Uninterruptible power supplies Energy Smart containment rack enclosuresFind additional information at Dell.com/RackInfrastructure.Find additional information at Dell.com/PowerAndCooling and Dell.com/PowerCenter.Power supply unitsThe M1000e chassis enclosure provides power and cooling for the M820 blade server. Forinformation on the M1000e power supply units, see thePowerEdge M1000e Technical Guide onDell.com/PowerEdge.Thermal and acousticsOptimized thermal management keeps fan speeds in the PowerEdge M820 as low as possible,contributing to quiet operation and ensuring proper component cooling.Thermal designThe thermal design of the PowerEdge M820 reflects the following: Comprehensive thermal management: The PowerEdge M820 dynamically controls systemcooling fan speed, based on responses from critical sensors that monitor the temperature ofseveral components, including:— Processors— DIMMs— System inlet ambient— Mezzanine card— NDCThermal control also detects and responds to hardware configuration. Thermal managementadjusts cooling according to what the system really needs, and draws lower fan power draw andgenerates lower acoustical noise levels than those without such controls.