Asus a8n-sli deluxe: Why Cool'n'Quite is disabled by default?

[elSalmon]

I have been suffering many bugs in my PC with Asus a8n-sli deluxe mobo (running WinXP and Gentoo Linux). It seems that my system is now stable, since I have update BIOS (version 1011). I keep default BIOS settings, except CPU & chipset Fan Warnings (I replaced chipset fan and I've a auto-regulated CPU fan). Burnintest gets PASS finally.

It's possible Cool'n'Quite was my source of bugs. I'm not sure. Why Cool'n'Quite is disabled by default?

 

[PsYcHoCoW]

I didn't notice that when I got my board, as I messed with every setting in the BIOS for like a day before installing any OS or doing anything...

but if it is indeed off by default on all boards, it might be because it doesn't let the user overclock. If you overclock, you can't use CnQ, and if you use CnQ, you can't overclock (from AIBooster, anyway).

I've turned CnQ and Q-Fan on and it works good. Sometimes when booting it'd tell me my CPU fan wasn't working well, but that was just because Q-Fan caused the CPU fan to spin at a really low speed. I disabled the CPU Fan monitor for that reason.