So I have a XFX 6870, nowt flash. But over the last month or 2, I've noticed that its getting hotter than usual (65-70c), and the ATI Control Center doesn't seem to give a fuck. Leaves the fan running at 20-25%. So I've popped it onto manual running at 40% which brings it down to 50-55c, which is fine. However, I'm just curious as why it may be acting the way it is. Obviously, I'd like to leave it on auto, as 40% is louder than I'd like.

Just to add, I have taken it out, and made sure the fan is clear (very minor build of up dust) and the exhaust is clear of any obstructions. Rest of temps CPU at 47c and MB 38c.

ALSO, this is dual screening, currently playing wow on main screen, and this on the other.