Strange issue with 3920xm cpu

[Maro97]

Something strange happened with 18x r2 the old cpu 3920xm works perfectly with integrated gpu i see it in bios . but when i use  discrate gpu it gives me 8 peeps . And when using 3720qm works fine with discrate and integrated gpu . What is this problem ? I tried official bios and unlocked bios with 3920xm same issue . Is the processor fulty ????

[i.bakar]

i might be wrong here but try this :

- insert the 3720QM then go to the bios , convert primary display in advanced tap to PEG then save and shutdown . 

- swap the processor with the 3920XM then try