Question Coil whine from my 7800 XT ?

[Alectrona]

Hello, I've got a quick question. I've noticed a slight coil whine coming from my 7800 XT. It typically occurs in more graphically intensive games rather than in games where I am pushing a high frame rate. I am questioning if this is normal because typically I've only seen coil whine be an issue on other cards when I am pushing high frame rates.