Are Device ID resistors still present on Pascal gpus?

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It was possible to change a few resistors on GTX 600/700 and older GPUs to change their device ID and unlock professional features. I have a P104 mining specific GPU and want to turn it into a GTX 1080 or 1070 GDDR5X (whose BIOS and ID I need) depending on the cuda core count that is acually on the die which is unknown but its most likely 1920 as the BIOS reports. But there is no documentation about this, I have reasons to believe they are gone after what was going on with Kepler GPUs where people saved 1000s of dollars by modifying GeForce cards. Someone on this forum said they transplanted an entire chip of a P106 GPU to a 1060 PCB and it didn't work, the ID was still P106's, what means that if he told the truth it is somehow GPU-tied. If there is anyone who knows anything about the way device ID is determined on Pascal please reply to me with all info you know