I hope I understood the question correctly.
It is really tiny, but I think it is a Winbond 25Q128FVSG
Yes, it is. I already found it on a youtube service video. Thanks for looking.
I have a programmer for that chip, I see pads for easy access next to it and it seems the bios is readable / modifiable. I only have two more questions:
1. Can you confirm that it is DDR4 RAM?
2. Can you confirm bios version (and ME Version)?
As for bios / ME version you can look in the bios and take note or maybe take a fast pic on that and post it? Here is a link from the Youtube clip that shows that:
It's not that hard and I have done it to a couple motherboards already.