Fn function keys work out of the box. For the
Fn function keys
F12 the following must be set as kernel parameter. If AUR is installed this is not necessary.
TUXEDO Computers provides a driver for their models with RGB keyboard. TUXEDO Keyboard can be installed manually from source or you use AUR
TUXEDO Control Center
TUXEDO Computers provides their own control center, TUXEDO Control Center (TCC), "to help you control performance, energy, fan and comfort settings". Install theAUR package.
Read more at the help page from TUXEDO .
With the TUXEDO Premium BIOS you can undervolt the CPU over the BIOS. You can switch between
-100mV. The selectable values are not dangerous, but test it in small steps. So try
-60mV, if it is stable you can try
-70mV and so on You also can use . Read Undervolting CPU for more Informations.
-50mV is pre-selected. You can change the value over the BIOS under Setup Utility > Advanced > Advanced Chipset Control > BIOS-controlled Undervolting.
BIOS Performance Profiles
With the TUXEDO Premium BIOS you can select one of four Performance Profiles. As default the
Entertainment is pre-selected.
- Power Saving
You can change the Profile over the BIOS under Setup Utility > Advanced > Advanced Chipset Control > Performance Profile Select.
More informations can found at the help page from TUXEDO 
The integreated Thunderbolt Controller will only shown up when a Thunderbolt device is connected or if you manually force Thunderbolt power.