We have some good news for those concerned about RX 480 PCI-E issue.
AMD issues an official statement declaring that the overcurrent issue may be resolved with a driver fix soon. We expecting an update from AMD on this driver implementation around Tuesday.
As you know, we continuously tune our GPUs in order to maximize their performance within their given power envelopes and the speed of the memory interface, which in this case is an unprecedented 8 Gbps for GDDR5. Recently, we identified select scenarios where the tuning of some RX 480 boards was not optimal. Fortunately, we can adjust the GPU’s tuning via software in order to resolve this issue. We are already testing a driver that implements a fix, and we will provide an update to the community on our progress on Tuesday (July 5, 2016).
Tldr: fix in the upcoming driver