The last couple of pictures are with it soldered. It runs as it ran while testing it, so everything is fine. How it is going to work for you is another story. It seems that I’m the only one to try it on mine and you’ll be the first one to try it on yours, if you decide to do so.
Yes, it has vBIOS chip installed. The wires and the socket were for testing purposes.
I’m not very familiar with dual GPU machines, but I’ve seen someone running the second one as a renderer. Don’t take it for granted though.
It was tested on W10 legacy (non UEFI) and works, so there’s that.
I have this GPU for quite a while. Past three years it was lightly used - no gaming whatsoever, only to light-up the display and even this was a rare occurrence. It was never overclocked, but I do have the additional 3 MOSFETs NOT soldered though, since I never made it to light-up the DreamColor with drivers installed which was the push-off. If anyone is interested, I can ask a repair shop to solder them.