Maybe you've heard these days, that there is an issue where Radeon RX480 results in excessive power draw from PCIe slots, consumes more power than the 75W PCIe standard slot, and this has been tested by several testers out there.
It is unclear what the direct effect of the extra power draw is, because all this time there is also video card which takes up a little more power than the PCIe standard, but rarely is there a PCIe damage report that is confirmed to be caused by excessive power consumption (this is natural because motherboard manufacturers certainly have tolerance limit of the PCIe specification). Many have speculated that the advantages of PCIe power draw can lead to an unstable system, and in the worst case, the death of the motherboard.
Unfortunately, many have already panicked to hear this so that gossip is quite fantastic, such as:
"Using the RX480 can damage the motherboard, even if the RX480 is diocated, it can cause the motherboard to burn".
"If the motherboard is low-end it will shut down when using RX480"
getting here
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In short, AMD realized that there was tuning for their RX480 which was not optimal in some testing scenarios. And AMD is preparing an improvement in the software / drive to fix this, and will provide further updates.
It has not been explained in what way AMD has overcome PCIe power draw problems, but we hope that AMD can do tuning on some microcontrollers in the video card to reduce power consumption from the PCIe slot.
While waiting for an explanation related to how AMD handled the problem, we also had time to test what impact PCIe Power Draw could produce on the motherboard.