Question about Rivatuner (using with GTX 280)

[DeadByDawn]

I am trying to use Riva tuner to prevent my gtx 280 from downclocking.
I did the following:

1) install and run rivatuner.
2) got to the poweruser tab
3) goto Rivatuner\Nvidia\Overclocking
4) Set EnablePerfLevelForcing = 1.
5) Hit "OK"

If i hit ok and close the riva app, is it still running?
Do you need to run it every time you boot windows?
Are there any other steps i need to take?

I thought it was ok, but it downclocked in a game i was playing.
The goal is to keep my 280 from downclocking (a known issue with some of them).

Any other suggestions?

Thanks

 

[AndonSage]

Watching this thread for answers

 

[Kowan]

Did you follow the steps listed here?
GTX 280 Downclocking and/or Throttling?

There is a temporary solution.Use rivetuner And select "Force Constant Performance Level" and set it to Performance 3D And your set.To enable this setting go to the"Power User" tab and set RivaTuner\Nvidia\Overclocking > ENABLEPERFLEVELFORCING and set to 1.

Thankfully my 280s didn't suffer this.(returned for refund and re-ordered cheaper ) I'll have two new ones next week to check out.

 

[DeadByDawn]

I did follow that exact thread. It seemed to work, but then it happend again.
Need to understand more about RivaTuner.
Ho can i tell its working?