Thanks minihack
Confirm your method.
I still had the problem I mentioned a few pages before about the distorted image on HD4000 using HDMI.
Get the HD4000 worked via HDMI but only with 1080P resolution. When i changed the resolution then distorted image. I've also got it to work with DVI adapter to hdmi with any resolution without problems except for the audio.
So finally I forgot the HD4000 and proceeded to install the GTX 660.
First I installed MultiBeast (UserDSDT, ALC882, ... Do not check any nvidia option in MultiBeast). Before restarting nvidia drivers installed 304.00.05f02
Resetting had problems with graphics enabler = yes (I forgot selected it before) and I run again multibeast to select Graphics Enabler = No. Then turn off the system, install the graphics and I went to the asus bios where change:
Graphic: iGPU (before) to Auto (to use both: HD4000 or GTX 660)
The iGPU memory was changed from 64 MB (before) to automatic. Reboot again, and graphic works.
Only a problem. My logitech mouse now works with more lag or freeze. The logitech dinovo mini works well.
Now I need to try several benchmark programs.
About noise, very very good and 30 ° C of temperature.
Sleep and Wake works without doing anything.
Now I only need the HDMI audio to work around me.
I will try doing a DSDT with Tooleda post. I'm totally noob on this but i hope to fix this final issue.
I'm very glad to have bought this card. Thanks so much for the info..
Regards.