HP ProLiant s6500 Chassis Setup and Installation Guide

Best practices 45
Best practices
Three-phase balancing
The optimal phase balancing in the enclosure is 2%, but 5% or less can be accomplished when the following
criteria are met:
The same type of power supplies are used.
Nodes draw a 50% load.
No power supply is in a failed state.
Cable each s6500 chassis so that each power supply receives one feed from each phase.