Hi!

I have double checked this now and found this is my mistake.
I wanted to make an universal backplate and those chips crossed my way now.
I was so carefull and I see I still made the mistake. And tested the backplate only on 5870 card :S

That hole is any way not supposed to be used with 5850.
I suggest you to dremel off (remove in any way that standoff that is touching the chips and all will be ok.

I really apologize for this. Hope this solution will be acceptable for you.

Eddy