Technical Guide

Thermal design
Thermal management of PowerEdge R450 delivers high performance for the right amount of cooling to components at the
lowest fan speeds across a wide range of ambient temperatures from 10°C to 35°C (50°F to 86°F) and to extended ambient
temperature ranges (see Environmental Specifications). The benefits to you are lower fan power consumption (lower server
system power and data center power consumption) and greater acoustical versatility.
Reliability
● Component hardware reliability remains the top thermal priority.
● System thermal architectures and thermal control algorithms are
designed to ensure there are no tradeoffs in system level hardware life.
Performance
● Performance and uptime are maximized through the development of
cooling solutions that meet the needs of even the densest of hardware
configurations
Efficiency
● 15G servers are designed with an efficient thermal solution to
minimize power and airflow consumption, and/or acoustics for acoustical
deployments.
● Dell's advanced thermal control algorithms enable minimization of
system fans speeds while meeting the above Reliability and Performance
tenets.
Management
● System management settings are provided such that customers have
options to customize for their unique hardware, environments, and/or
workloads.
Forward Compatibility
● Forward compatibility means that thermal controls and thermal
architecture solutions are robust to scale to new components that
historically would have otherwise required firmware updates to ensure
proper cooling.
● The frequency of required firmware updates is thus reduced.
The thermal design of the PowerEdge R450 reflects the following:
● Optimized thermal design: The system layout is architected for optimum thermal design.
● System component placement and layout are designed to provide maximum airflow coverage to critical components with
minimum expense of fan power.
● Comprehensive thermal management: The thermal control system regulates the fan speed based on several different
responses from all system- component temperature sensors, as well as inventory for system configurations. Temperature
monitoring includes components such as processors, DIMMs, chipset, the inlet air ambient, hard disk drives, OCP.
● Open and closed loop thermal fan speed control: Open loop thermal control uses system configuration to determine
fan speed based on inlet air ambient temperature. Closed loop thermal control method uses feedback temperatures to
dynamically determine proper fan speeds.
● User-configurable settings: With the understanding and realization that every customer has unique set of circumstances
or expectations from the system, in this generation of servers, we have introduced limited user- configurable settings
residing in the iDRAC BIOS setup screen. For more information, see the PowerEdge R450 Owner’s Manual at www.dell.com/
poweredgemanuals and “Advanced Thermal Control: Optimizing across Environments and Power Goals” on Dell.com.
● Cooling redundancy: The R450 allows N+1 fan redundancy, allowing continuous operation with one fan failure in the system.
● Environmental Specifications: The optimized thermal management makes the R450 reliable under a wide range of operating
environments.
● Optimized thermal design: The system layout is architected for optimum thermal design.
PowerEdge R450 acoustics
Dell EMC PowerEdge R450 is a rack-mount server appropriate for attended data center environment. However, lower acoustical
output is attainable with proper hardware or software configurations. For example, the minimum configuration of R450 is quiet
enough for typical office environment.
Power, thermal, and acoustics
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