Ok, the northbridge cooler on my NF7 is driving me insane with it's high pitched up and down whirring. Unfortunately, the cooler on my xfx agp is exactly the same niose. It grinds to start with and then it's like an up-down whirring sound which is really noisy and annoying. All of my other fans are near silent, arctic cooling on my cpu, 2 panaflo and 2 fans of 7v to keep them quiet, and the antec true power is silent. It's just these 2 driving me insane, can you recommend me a northbridge cooler and a agp vga cooler for my 6600gt, thanks, John.