Not to make you seem bad, but you haven't done your research correctly seems like. 1. All the forums I've checked on confirm that a 450w PSU is more than enough to power a 1060. The 100W on the single rail is required, but the card also draws 75w from the PCIEx16 slot or the riser connected to the same PCIE slot. The card uses about 197W maximum in intense gaming scenarios (maximum limit is 197W). I'm only using about 100-110W for my situation. So plenty of power avaiable. 2. Windows 10 also booted up with only 2 gigs of RAM installed. Obviously not ideal or daily driver material, but it can be done. 3. You suggested a 700W bronze EVGA PSU for this, but I'd be able to power 3 GPUs and one CPU (for mining) pretty easily with a PSU like that so kinda overkill, just saying.  Regardless, I really appreciate the effort you put in to try and find a solution. It took me literally 3 days to find a fix that was only 30 seconds long which was to run the system with 2 gigs RAM..!
I got my hands on a practically free optiplex 320 and was thinking of putting it to use. I'm currently trying to connect a 1060 to it. I tried plugging it into the main PCIE x16 slot (had to move the processor heatsink around somehow), but I was getting a startx error on Linux. I tried to boot windows 10 on it, but the second I connect the 1060 to the slot, I get the never ending windows 10 boot screen. Once I unplug the 1060, both linux and windows boot perfectly well. Is there some BIOS setting I'm missing? I know this is all too experimental.   Thanks in advance.
Will a GTX 1060 6gb work with an optiplex 320?