I tried but when I load in to either hekate or atmosphere, I get a black screen..Just extract what's inside that 2nd SdOut to the root of your mSD, it will have Switch and atmosphere folder, just copy paste...
Don't worry, by default you will have very stock like settings including default or very similar to stock voltages... And in terms of clocks you chose on-the-fly at any moment you want from switch Tesla menu and can be configured per game or general profiles and has different choices of clocks for handheld, docked, handheld with official charger and so on...
The clocks will automatically change to whatever your choice, like for me I can be on whatever high OC, if I remove the official charger I set default clocks with default ram frequency...
Note: You also need the following:
Tesla-Menu:
saltyNX:
nx-ovlloader:
ReverseNX (not mandatory but if you want to use the included option to change between docked\handheld mode you need it);
StatusMonitor (not mandatory but it gives you the CPU\GPU usage and other extras);
NX-FPS (not mandatory but I think it's needed for statusMonitor to show current game FPS);