Originally Posted by kiario
Tried to ovrerclock my new ligjtning but volt does not go higher than 1.2 even if set at +50 mv. Should it not go to 1.24?
Put it in extended MSI mode. You do this in MSI Afterburner's settings. Click on the gear icon, and under general tab, you can find the option there. Also to reach 1.3 volts, you will have to flick the switch on the PCB. You flick the switch when the video drivers are disabled in device manager. The switch is located next to the SLI ports on the right. It is on the PCB that is facing downwards when the card is in your machine. After you flick the switch, then enable the drivers in device manager, and now you are using an unlocked Lightning.
Word of caution, please take the voltages up slowly, see what your card does when under load. Some people's cards do better with less voltage, like mine, and other people's cards do better with more voltage. No card is the same.
GPU-Z does not report the correct values for voltage with this card, as the program is not designed for Lightning users. Use the voltages shown in MSI Afterburner. Although they won't be accurate. If you want accurate voltages, you will need a Multimeter to connect to the ports on the card that are provided by MSI.
Voltage of the core is not the only thing you will want to consider, you will also want to look at memory voltage and also auxiliary voltage. This will be different for everybody. Mine requires more auxiliary, and more memory, but less core. Other people require less auxiliary and more core. You will spend hours and hours working out what is the top score of your card.
MSI Afterburner has a feature that lets you create a fan curve. I suggest activating it and making one. You will know if it is enabled, because on the main screen of MSI Afterburner, the part that has to do with fans, will have a big highlighted rectangle around the whole thing.
When overclocking, please take into consideration the environment that you are working in. Summer time temperatures will be different to winter time temperatures. What your max overclock will be will not always be relevant. I actually suggest you have a daily clock rate that you use with confidence, and then a secondary overclock that you wanna go crazy with. Edited by Sphere07 - 2/16/16 at 12:37am