Whatcha doing with the 2500K?

You linked something and misinterpreted it completely. Saying that VID is not affected by BIOS or motherboard in your first post, and then linking the data sheet that says VID can be altered and is considered out of specification operation should have clued you in that VID can be altered.

If you want to see what the factory VID values are, you need to look at your V/F curve editor in BIOS. While you’re at it, screw around with DC_LL and you’ll be convinced that you did misinterpret the Intel datasheet, as when you load into Windows you’ll see that your VID is in fact very much affected by BIOS settings.