I found a bios and a modified flashrom which let me unlock my 850 pro to an x850xt!!!
Scoring 6400+ in 3dmark05!!!!
If anybody else has the x850pro AGP and would like to do this let me know and I will tell you how to do it. I can't belive it worked.
Here is the link
which has a modified x850pro bios with 16p.
My version of the mod only works on the 850pro agp and uses a special BIOS which keeps the card an 850 pro but activates the 16 pipes. Even worked with my stock cooling with no problems.
I was able to oc the core to 534, and memory to 1.17.
However, I found that by lowering the timings on the memory by significant margins in ATITool, and lowering it to 1.12, it performed much better than the higher clocks did.
Timings down to 7-6-5-10-24-5-6 from 7-7-5-14-27-5-6
Those are the old and new timings.
Let me know what you think, and spread the good word!!!
Most of the forums for this type of mod are all for the x800pro VIVO and only include the BIOS for those card leaving the x850 pro owners in the dark.