I just bought a Sapphire R9 290 ( great card so far ) however im having some strange probs, I switched out from a sapphire HD 6970 to the 290, and when I did im getting while under load a kinda static noise coming from the card only under load tho, as if the PSU is not strong enough, I am running a 700 watt psu, and it says on the box 750 watt or greater.. however im not getting any crashes in games, no random reboots, no OS fails.. just a strange noise. Also I am getting strange gpu drops it will be like 95-99% useage and do a quick drop it effects the fps when this drop happens... im thinking the solution to all of this is a stronger PSU. Also I wanted to share this problem with others if anyone else is experencing this. Ideas suggestions? Thanks!