Just opened P95 to test stability @ 4ghz on a Q6600 only to find the mobo was making an whinning/buzzing noise coming from the cpu area.
Swapped my psu over for another and still get the same problem.
The only weird thing is if i put it back standard settings you can hardly hear the buzz but the more you clock it the louder it gets
running 4ghz it buzzes for exactly 5secs (and quite loud too) then 1sec after it stops i get a bsod ending 0124 
Any ideas appreciated.
Specs.
Q6600 G0
P35 DS4 Rev2
4x 1GB Geil ULL
8800GTS 512MB
OCZ Gamexstream 850W (4 rails, each have 20A so should be enough power?)
Swapped my psu over for another and still get the same problem.
The only weird thing is if i put it back standard settings you can hardly hear the buzz but the more you clock it the louder it gets


Any ideas appreciated.
Specs.
Q6600 G0
P35 DS4 Rev2
4x 1GB Geil ULL
8800GTS 512MB
OCZ Gamexstream 850W (4 rails, each have 20A so should be enough power?)