7900GT Voltmod-2

[t024484]

t024484,
In the above post you mentioned to not use "Coolbits" because the switching between both 2d and 3d can aggravate the problems with GPU. Now I have done minimal searching on this topic both here at extremesystems and also googled it without much specific information. I am curious because I have heard it mentioned in the past.

With that said, is the problem caused by "Coolbits" itself or is it just the actual switching of 2d and 3d clockspeeds that aggrevates the issues? Despite where the problem stems from is there a safer way to change clockspeeds between 2d and 3d modes, maybe by using another program like RivaTuner, ATI Tool, etc...? Thanks for you help and I'm sorry if indeed this question has already been beaten to death, lol!

In another thread, I have reported my experiences when I thought my board was dying, because of flashing screens, freezes and strange artefacts independent of frequency, and the fact that it was no longer possible to run Deep Freeze in 3DMark06.
Then Flytek and Humeboy both advised me to deinstall Coolbits and try again.
Because everything functioned perfectly before the problems started with Coolbits installed, I had little believe in deinstalling Coolbits.
But much to my surprise, after having removed Coolbits, everything functioned troublefree. I have then tried ATItool and RivaTuner instead and both where O.K. but at the end I have simply changed the 3D frequencies in BIOS with Nibitor, and my board is still completely troublefree, the question is of course " for how long"??

I can see a big difference when starting a 3D program like 3DMark06 with and without Coolbits.
With Coolbits I see a large black area on my screen flashing on and of shortly before 3DMark06 starts loading.
Without Coolbits the transition from 2D to 3D goes smoothly and without this large black area.
Maybe this is the moment where something in the GPU is getting damaged/disturbed when this has happened several times.
It seems that Coolbits is using a different switching mechanism or switching order that pushes the GPU over an edge that should not be there in the first place.