Quote Originally Posted by xorbe View Post
My stock EVGA 680 SC is boosting to ~1220 which is unstable. I'm just trying to lower the clocks and reflash (hate RMAs). So I grabbed my rom with gpu-z and edited it with this KGB and also with Kepler Bios Editor 1.1:
http://rog.asus.com/forum/showthread...0-650&p=213818
But they don't detect each other's BOOST changes (ie, edit with one, check with the other). What's up with that? [Fan %, power, and voltage do correlate between the two.] I'm a little nervous to flash this $500 card. I've flashed 260 and 560 cards without problems, but they weren't worth as much either. KGB shows 1280.5 as max boost from the rom dump!!! Kepler Bios Editor shows 1150 which is what EVGA claims. I think there's a custom index table you need to take into account possibly? KeplerBE shows me a big table with 1280.5 as the highest value.

(In the mean time, I use software solution -25 core, +200 mem with MSI AB. And I read this whole thread, whew!!!)

There is a difference between Boost Clock, and Max Boost.

The one that you see in Kepler Bios Editor 1.1 is "Boost Clock". This will not help you in your situation. Because as you see the cards will boost higher than this setting anyhow.

The one that you see in KGB is "Max Boost". This is the maximum that your card will boost to (unless you add + to your clocks in software) This will help your situation since your card is boosting too high 1220mhz and its not stable, if your set the max boost in KGB to say 1180 your card will not boost to 1220 anymore.