Yeah, was kinda the reason I possed the question, I mean from an oc pov, u probably want as good a control over that temp - as u generally control temps.
U would think if a manuf says 80 is a warning temp.... then so be it - but I would hazard to guess that many a board has been sizzled on that theory. 80 maybe the temp under lab stress or summit stoopid.
The board is oc`d, but only taking the 2g to 2.5g - cpu is nice`n`cool under a ninja, and the ram is clocking up from a ddr333 base which only takes it just over 400 with the clock.
It`s hard to see the mobo atm, it`s fitted to a shelf (hard to explain), with a ninja on one side and a 7600 on the otherside of the nb sink. From memory tho, it was a grey`d 70`s looking basic heatsink with a tab either corner to hold it down.
I do have some server type sinks with higher fins, which may do a better job - and the idea of some non-manuf thermal goo sounds like a good idea all-round tbh.