@Jean-Marc_Le_Roux those are the values that will unlimit the CPU, and the power limit will be controlled by the EC.
The CPU will take the lesser of whatever setting the EC PECI and MSR settings are for this.
The EC will reduce the turbo power limits if you have low battery or smaller AC adapter attached.
You can reduce constraint_0 to something like 10000000 (10W PL1)
and constraint_1 to 15000000 (15W PL2 Burst)
And you should see the system run much cooler and a bit slower.