@ 3.8Ghz & 1.5v OCCT says 27 - 25 on all cores idle, full load for a while, now seems to go no higher than 40 - 42.
GFX is 45 idle and about 60 full load.
Really can't hear the fans i've got they are expensive but fantastic.
is the cost of waterblocks for them, looking around £80 each!