Welcome to Folding@Home!
The very limited slider options for CPUs were written when CPUs had very few threads. (F@H calls them CPUs) Your CPU has 12 threads.
https://ark.intel.com/content/www/us/en ... 0-ghz.html
So here are some generic Instructions to set the number of CPUs you want.
In the taskbar to the lower right of the screen, you should see a F@H molecule icon, click it (you may need to click an Up Arrow to see it ^)
The second item in this menu is Advanced Control, click it
On this screen to the left is a Configure button, click it
Now you get a screen with a Slots tab, click it
On this white field should be a cpu item, click it and then click edit
By default F@H set the number of CPUs to -1 meaning let the software decide.
You can enter any number from 1 to the number of threads your CPU supports. (12 for you)
If you have GPUs, F@H reserves one CPU per GPU to feed it data across the PCIE bus. (you don't)
F@H has difficulty with large primes and their multiples number of CPUs.
7 is always large, 5 is sometimes large, and 3 is never large. Try to choose a number that is a multiple of 2 and/or 3.
2, 3, 4, 6, 8, 9, 12 are good numbers of CPUs to choose.
5. 10 may work most of the time. Other numbers will bite you
Type the number you want, and click save.