For all you ATi (AMD?) Radeon RV370 PCI-Express ver. ATi X550 lovers , schematic/diagram
All models include Direct3D 9.0 and OpenGL 2.0
PCI-E (X3xx, X5xx, X6xx, X1000 series)
Radeon X300 / LE / SE / Hyper-Memory
Radeon X550 / SE / Hyper-Memory
Radeon X600 / SE
Radeon X600 Pro (RV370)
Radeon X1050 (RV370)
OK , so a bit of update-(additional info)
I also have access to serv. manuals/schematics/board schematics for the following newer stuff(I can post if requested).
Nvidia Mostly asus & some msi and other brands :
9800GTX+ / GTX 108 / 8600M GT / GTX 560 / GTX 750 / GTX 660 Ti / GTX 650 / GTX 650 Ti / GTX 670 DC2 4 gb / GTX 745 / GTX 750 TI / GTX 760 / GTX 770 / GTX 780 PP / GTX 970 / GTX 1080 - 8gb / GTX 1070 strix / GTX 980 / RTX 3080 / GT 1030 / GTX 1050 Ti / GTX 1080 / 1080 Ti / N3070 / 3070 -8gb / GT 720 / GT 730 / GTX 960 / GTX 1660Ti / N 2060 AORUSX 6gb / msi RTX 2060 / 960 / 1050 Ti / 1060 / 1080 / Dragon GTX 660 Ti/980 / 1070 / RTX 2070 / RTX 2080Ti / RTX 3070 / RTX 3080 / RTX 3090 , (high image of PCB G80- 8800GTS) , V316 - 1.1-1.3
Radeon :
HD5770 / HD 6770 /R480/X550 / ROG Matrix R9 290 X PL / HD8570 DDR3 / HD 7770 / rv610 vga / AMD rampage guide / HD7850 / HD 7900 / R7260X / EHA HD 6950 / R9 380 / HD 7970 / RX Vega 64 ROG Strix / R68XTAORUS M 16GB / R9 285 / HD7900 / RX580 - RX570 - RX480 -RXMS