Well lets say, I have my R9 280 and I cannot change the core voltage unless I flash the bios of it. Thanks in advance if you made it this far, and let me know if you have any ideas. Is modifying the core voltage even possible on most GPUs, or are most locked by Nvidia? Seems kind of pointless to have voltage control options on a tuning utility if most GPUs would be incapable of utilizing them. I know that there are modified vBIOS options out there that could solve the problem, but as far as I'm aware, others have been able to unlock voltage control without modifying their cards. So essentially I'm just curious if anyone has any thoughts, or more experience with Afterburner/overclocking in general. If I boost the voltage by +35mV in Afterburner, the core voltage while benchmarking doesn't increase by +35mV, it is at the same voltage as if there was no change).Īlso, here's a quick list of GPUs that I've tested this on: I use HWiNFO64 and Afterburner to track the GPU voltage when I benchmark, and the GPU core voltage is always the same, no matter what value I assign the slider in Afterburner (i.e. The fixes listed above do actually unlock the voltage slider in MSI Afterburner, and I am able to change the voltage that supposedly goes to the GPU, but there is no actual change when I apply it. When I say that these fixes "dont work," I mean that at a hardware level. Now on to the "meat and potatoes" of the post. Some of the "fixes" that I have described are linked below: Lastly, I've also tried the beta version of Afterburner too, again, nothing. cfg file under the profiles folder, again with not affect. cfg file of Afterburner and agreeing to the EULA, and modifying the associated settings. I've (of course) tried the check boxes in the settings for "voltage control" and "voltage monitoring" to no avail. This extends into my testing on mobile GPUs, and desktop GPUs. Now, I've done my research and tried different things to unlock voltage control, but none of them seem to work. I use MSI afterburner, but I know that there really aren't major differences between Afterburner/precision-X because they're all based off of the same platform. I've definitely gotten the hang of general overclocking and stability testing except for manipulating the voltages on GPUs using Afterburner. One avenue that I have more recently been exploring is GPU overclocking. +600 MHz caused decreased performance and stability, while stepping down to +450 MHz allowed me to continue to increase the Core Clock.So I've been into PC building and gaming for quite some time now (since about 2014), so I feel pretty confident with my computer hardware skills. For my GPU, this was around +500 MHz (7500 MHz actual). Eventually, increasing Memory Clock will start to negatively effect your CPU Clock, stability, and game performance.Step clocks back down, retest and make sure it’s stable. If you increase Core Clock and Memory Clock in small increments and test thoroughly between each setting, you will likely end up crashing the benchmark or blue screening at some point. Increase Core and Memory Clocks by a small margin (something like +20/+50) and test again.Every card is different, so they are irrelevant. Use online research to determine what other GPUs of the same model are able to achieve.ĭo not reference the Core clock or Memory Clock offset numbers from other users.Since we’re not increasing the voltage, it’s extremely unlikely to damage the card with this overclocking method.This guide will aim to lower this percentage. A higher percentage indicates a GPU bottleneck, a lower percentage indicates a CPU bottleneck. “GPU Limited Percentage” is the amount of time where the GPU was the limiting factor when rendering frames.This is a raw count of the number of frame stutters and dips experienced in the benchmark. “Stutter Count” seems high, so we’ll take note of that for future runs.Locking the voltage and frequency helps to prevent frame skips, drops, and stuttering.īefore any of the steps below, I recommend running a benchmark.įor this guide, I will be using Forza Horizon 4’s built in benchmark tool at Ultra settings on 1080p with AA maxed. This method ensures that the GPU does not auto-modulate voltage and frequency. Instead of simply adjusting the core and memory offsets, we are going to use a stricter method for overclocking. You are the one responsible for your individual GPU settings, not me.įollow along with the guide and use the general advice given, in addition to your own research to OC your GPU. Your specific GPU settings will be different than what is outlined in this guide.
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