(Kepler/Maxwell uses an internal table where each clock, and there are many, is assigned a certain voltage. With an external tool this is not possible since clocks are just added but voltages are not being increased accordingly. The only "proper" method to overclock is with a correctly modded BIOS where the internal voltage table is also giving the correct voltages to all the clocks. You tested your card at its new speed at 1506 now and all seems ok.īut say, you run a game which uses less load, or you watch a video.or there is a scene in a game which is not demanding and your GPU clocks down to, say to 1200Mhz = CRASH. This is after you added +140 to your core clock in AB. When you overclock with an external tool, matters get confusing since you may well be stable at your max boost clock, say you found 1506 is stable. It could ALSO lead to a wrong conclusion that your card is not able to handle a certain overclock while in reality it very well can. (In fact overclocking with any external tool is so bad that even the short time it usually takes for the GPU to "step up" from a lower CLK to its max boost is often enough to have your card crash. If your Kepler/Maxwell GPU at some point is downclocking, or you force a lower Power Target.you WILL crash. What you need to know is that overclocking with any external tool is bad. (I am trying not to be too technical here and save yourself from explanations of "voltage tables" and internal BIOS stuff) Many Maxwell/Kepler cards cannot be "properly" overclocked with any external tool (Afterburner, Precision etc.) since this leads to instability at lower clocks. This makes sense since of course not everyone is familiar with or does want to do BIOS modding. Most people are still using Afterburner or PrecisionX (or whatever external tool) to overclock their GPUs. I am posting this since it seems that not many are aware of this.
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