by double boot, do you mean ur PC turns itself on twice after you press the start button... with a small pause in between... if yes, then I guess its normal coz most new mobos run a self test for the configured settings before it starts the BIOS...
Hi,
I'd suggest against buying Sunbeam CCF for a quaddy... I've had two of'em on my P5Q mobo for a Q6600 and they were crap... go for a TRUE 120... its da best...
On Sunbeam CCF my Q6600 @ 3.0 Ghz would hit 65 degrees while priming on small FFTs while on TRUE 120 it hits only 59 degrees...