Specifications

Power, cooling, acoustics

With energy costs rising and the increase of data center density, Dell EMC provides technologies to help you realize greater performance

with lower energy cost and waste.

Topics:

• PSUs

• Cooling and environment

• Acoustics

PSUs

The VEP4600 supports two AC hot-swappable power supply units (PSUs) with I/O-side to PSU-side airflow. Two PSUs are required for

full redundancy. Depending on the configuration you order, the VEP4600 ships with one or two PSUs.

The VEP4600 platform comes preinstalled with one AC PSU (4- and 8-core units) and four field-replaceable fan modules or two AC PSUs

(16-core units) and five field-replaceable fan modules, depending on the configuration that is purchased. When the VEP4600 runs with full

redundancy, which consists of two PSUs installed and running, you can remove and replace one PSU while the other PSU is running

without disrupting traffic.

For AC power specifications, see Specifications.

Cooling and environment

The thermal management for the VEP4600 delivers high performance through optimized component cooling at the lowest fan speeds

across a wide range of ambient temperatures. These environmental optimizations result in lower fan power consumption for lower total

system power and data-center power consumption.

For cooling and environmental specifications, see Specifications.

Acoustics

Dell EMC focuses on sound quality and the sound power and sound pressure levels.

• Sound quality describes how disturbing or pleasing a sound is interpreted. Dell EMC references various psycho-acoustic metrics and

thresholds. For example, tone prominence is one such metric.

• Sound power and pressure levels increase with greater populations or higher utilization. Sound quality remains good even as the

frequency content changes.

Dell EMC uses ISO 7779 to measure A-weighted sound pressure levels. For acoustic noise and vibration specifications, see Specifications.

Power, cooling, acoustics 15