So, the top three would need to be changed e.g
Top line 1262.5 - 1262.5. To the voltage you want (max is 1.3 I beloeve) for both values.
Second line change the right value only
Third line, change the right value only.
P00,P, change the right value.
i did not change any other clk vaules as there where higher than what I set above. Is seems that the top three are a reference the card uses during the other clk vaules and determines if the voltage slider in AB or what ever you are using actually does anything. Eg, my card had a hard limit of 1212, which the card hit right away. So, changing the sliders did nothing for me until I changed it.
Looking at your table, you already have a max of 1262 ref, which is higher than the 1250 I've set, so do you need to raise yours?
If you do, do so at your risk (kinda goes without saying) and ensure that you disable the card in device manage and turn off any firewalls and av during the flash.