problems using ATI tool/rivatuner

[Prophet]

I just got my new 8800GTS 512mb card tonight and am trying to OC it using ATI tool but it says that " the video card you selected for overclocking in ATI tool does not seem to be used in windows" then says video testing has been disabled, i have to go to display properties and enable the video output. How do i do that?

As well, how do i increase the fan speed using rivatuner?

 

[PRVRT]

In Rivatuner, from main page, click on the little down arrow under "Driver Settings" where it says customize. Then click on the Video card icon that says system settings. That should open the System Tweaks page. You should see the OC settings for the video card. On top should be 4 tabs, the fan control is the second one that says "Fan".

 

[Grievearz]

I just got mine too. To get Rivatuner to work you have to open RivaTuner.cfg (open it in notepad).

Once you get it open add this line "G92 = 600h-61FH"

right under
"G84 = 400h-40Fh
G86 = 420h-42Fh
G92 = 610h-61Fh"

That will force it to recognize your card and allow you to overclock