I, I'm also running a non T CPU, in my case it's a 9700.Hello @poulpor and apologies for replying after so long.
I have an m720q with an i5-8500 (non-T). Using your guide I was able to unlock undervolting, and am able to sustain 35W under full CPU load. (Most important step being to disable BD PROCHOT)
My question to you is, how were you able to push your system to draw more than 35w? Did it require further Bios modification?
If anyone else has anything to add to this conversation, please feel free to chime in!
Thanks!
Did you try playing with the PL1/2 values?
What charger are you using? And what heatsink? I had to set my governor to power saver, or the CPU will always be running above 4GHz, with all cores over 80°C.