So at 1125mv you are testing the undervolting frequency and voltage suggestion it seems? It is currently checking every frequency between the initial frequency (4375mhz) and the max frequency (whatever is input or default) until it crashes, at the voltage you have chosen and at 6mv above and below. If stable it goes up by 25mhz until then tries again at 6mV below to see if still stable. Once it crashes it will use Phoenix mode to revert to a frequency 25 or 50mhz below the crash and at the voltage 6mv above then you can choose to save these values as P1 or P2.
When you originally ran the diagnostic it suggested P1, P2 and undervolt starting speeds and voltages. Normally you just do P1 then tune for optimisation, save as P1 profile followed by the same for P2. The undervolt option allows you to replace either P1 or P2 (or more commonly replace P2 with P1 and P1 with the undervolt settings). This lets you run at lower voltage and temperatures but at lower performance. You will need to compare the Cinebench scores for each profile and the Hybrid mode combined P1 and P2 profile to decide which you will keep. I recommend also running other benchmarks with CTR active in the different modes (P1 alone, P2 alone, hybrid P1 + P2 and finally replacing P1 or P2 with the undervolt values) applied to see if you get any benefit. Personally I found almost none so have disabled the program for now.
Your saved P2 profile will be the most aggressive for 1/2 to 3/4 core loads such as gaming and P1 is less aggressive for running on all cores like rendering. As stated earlier mostly in benchmarks and light CPU load games (<25% utilisation) it will run in P0 mode which is not adjustable and is basically PBO.
From the values you posted it is in the middle of adjusting the undervolt values but I found mine would often crash so badly it would corrupt thr phoenix mode data and eventually I had to input more conservative (higher voltage and lower max speed) values to start the tuning.
All i did was run the tune when i booted it up.. i just ran the diagnosics now to see what it says
***ClockTuner for Ryzen 2.0 RC3 by 1usmus***
AMD Ryzen 7 5800X 8-Core Processor
ASRock X570 Taichi
BIOS ver. P4.00 SMU ver. 56.43.00
TABLE ver. 3672324
DRAM speed 3600 MHz
02/10/2021 15:16:22
DIAGNOSTIC RESULTS
AMD Ryzen 7 5800X 8-Core Processor
Max temperature: 76.4°
Energy efficient: 4.14
Your CPU is GOLDEN SAMPLE
Recomended values for overclocking (P1 profile):
Reference voltage: 1250 mV
Reference frequency: 4700 MHz
Recomended values for overclocking (P2 profile):
Reference voltage: 1325 mV
Reference frequency: 4775 MHz
Recomended values for undervolting:
Reference voltage: 1125 mV
Reference frequency: 4450 MHz
Phoenix deactivated!
so what should i imput where?