Hi
In the past we expected a problem with too much of power draw taken by reference RX480 from the PCI-E slot - it was fixed in Crimson 16.7.1:
Radeon Software Crimson Edition 16.7.1 Release Notes
http://www.tomshardware.com/reviews/amd-radeon-rx-480-polaris-10,4616-9.html
AMD's New Radeon RX 480 Driver Fixes Power Issues
what can I expect on Mac/OSX ?
