After a week with the new AMD Radeon R9 Fury X, one of the things that has annoyed me was the very loud noise coming from the pump. It sounds like coil whine, and under heavy stress, the Fury X really begins to sound quite loud.
But it looks like a member of the AnandTech has noticed that AMD is shipping an updated version of the radiator with the latest batches of the Fury X. It looks like the first batch that mostly went to selected press and a handful floating out into the world is the only one effected, with the second batch and hopefully beyond including a radiator that isn't as noisy.
The unit that the news of the revised radiator was from SAPPHIRE, so we should expect other AIB partners to use the revised pump as soon as possible.