Dell PowerEdge M1000e Technical Manual

Also see for PowerEdge M1000e: Manual Command reference guide Owner's manual Update Getting started guide

Contents

Dell PowerEdge M1000e Technical Manual Manual pdf 27 page image

DellPowerEdge M1000e Technical Guide 265 Power, Thermal, AcousticBuilt on Dell Energy Smart technology, the M1000e is one of the most power-efficient blade solutionson the market. The M1000e enclosure takes advantage of Energy Smart thermal design efficiencies,such as ultra-efficient power supplies and dynamic power-efficient fans with optimized airflowdesign to efficiently cool the chassis and enable better performance in a lower power envelope.A modular system has many advantages over standard rack mount servers in terms of poweroptimization, and this aspect was a focal point throughout the M1000e’s conceptualization anddevelopment. The key areas of interest are power delivery and power management.The M1000e provides industry-leading power efficiency and density, accomplished through highlyefficient components, improved design techniques, and a fresh air plenum that reduces the airtemperature to the power supply components. Lower operating temperature equates to higher powerdensity for the power supply (exceeding 21 Watts per cubic inch) and higher power efficiency (betterthan 87% at 20% load and higher at heavier loads, approaching 91% efficiency under normal operatingconditions).Power efficiency in the M1000e does not stop with the power supply. Every aspect of efficiency hasbeen tweaked and improved from previous designs—adding more copper to PC board power planes toreduce I2R losses, improving inductors and other components, increasing efficiencies of DC‐DCconverters, and replacing some linear voltage regulators with more-efficient switching regulators.See Section 15 for more information on external power connection accessories.5.1 Power SuppliesThe power distribution inside the M1000e Modular Server System consists of a power supply systemlocated in the rear bottom of the chassis.Figure 21. Power Supplies in M1000e