Highwayman is absolutely correct.
It sounds very much like a program called "OC Tuner" which comes with a lot of ASRock motherboards.
You may be able to enter into the system bios settings and over-rule setting applied my the program by choosing one of the default bios options usually called something like "Load BIOS Defaults" or "Load Performance Defaults", etc.
If it is an ASRock motherboard, then tap the F2 key when the system is booting, once in the bios screen, use the arrow keys to navigate to the smart tab at the top, and you should see the options that may help, select one, then choose the exit tab, and be sure to save changes and exit.
If it's another motherboard then the key or key combination may vary and is usually indicated by a message screen as the computer is booting. Something like hit delete to enter system setup, or F10 or something else.
Unfortunately if the program is set to run at startup it may very well reapply it's settings and you may be back at square one and uninstalling the program as Highwayman suggested may be the only option.