Hi everyone I'm from Indonesian,
I have this question long time ago and never got the answer.

Several times bought a new phase controller IR3567B none of them was working properly.

IR3567B or any other phase controller are need to be programmed?

Thank you! cheers

Yes indeed. If you want programm new IR3567B you need get somehow dump from same type videocard and then write that dump into new ic. Actualy get dump is easy part, you may use for it MSI Afterburner with key "-i2cdump". But for writting down dump you need programmator with supporting this type of ic. Or you can try to interact with ic over I2C protocol by simple selfmade programmator (most simple programmator consist of 2 resistors).

Wow nice information, thank you kgbeast.
I'll learn how to interact I2C for this pwm