Click the FIVR button to go to Turbo FIVR Control. You will see a lot options and sliders here, this process is actually very simple. Check to make sure you have the right profile selected (voltages can be profile-specific) then check the “Unlock Adjustable Voltage” box under “CPU Core Voltage”. There are 6 elements under “FIVR control”, but we only care about three: CPU Core, CPU Cache, and Intel GPU. In fact, CPU core and CPU cache should almost always be set to the same value. Make sure the radio button for “Adaptive” is selected, as well as CPU core, and now we can select an undervolt for it. Only adjust the Offset Voltage. How much you should undervolt depends a fair amount on what chipset you have. In general, Skylake quad-core mobile CPUs undervolt very well (between -125-165mv) while Kaby Lake quad-core CPUs don’t do so well (generally between -100-125mv). For this guide, I suggest a conservative undervolt of -80mv for your CPU Core. Once that is done, click “CPU Cache” and perform the same steps. CPU Core and CPU Cache should generally have the same undervolt. Lastly, select “Intel GPU” and give it a more conservative undervolt. The Intel GPU can generally be undervolted -50mv, but more than that is not guaranteed.