Video card upgrade

Solution
I found some unfortunate information while I was looking up the PSU wattage.

"The motherboard and PSU have a proprietary 10-pin ATX connector, and there is no adapter currently sold that will allow you to use 98% of the psus out there that use the 20/24 pin connections. I found this out the hard way, after I had bought the machine, new psu, and new graphics card and was about to install them. What this means is that the psu is effectively non-upgradeable unless you get a new motherboard as well - and therefore neither is the graphics card (although I was able to run a Nvidia GTX 750ti SC, which uses the PCI-E to draw power and has a low TDP).
Do NOT buy this machine if you intend to upgrade the PSU and graphics card. Other than this...
I found some unfortunate information while I was looking up the PSU wattage.

"The motherboard and PSU have a proprietary 10-pin ATX connector, and there is no adapter currently sold that will allow you to use 98% of the psus out there that use the 20/24 pin connections. I found this out the hard way, after I had bought the machine, new psu, and new graphics card and was about to install them. What this means is that the psu is effectively non-upgradeable unless you get a new motherboard as well - and therefore neither is the graphics card (although I was able to run a Nvidia GTX 750ti SC, which uses the PCI-E to draw power and has a low TDP).
Do NOT buy this machine if you intend to upgrade the PSU and graphics card. Other than this very significant handicap it's a nice machine."

"It will not run high end games, and the PSU is not upgradeable (the psu and motherboard use a proprietary 10 pin ATX connector, and the psu is therefore not upgradeable - which severely limits your graphics card options). The included GT 730 is not going to run most 2015 or 2016 games. Because of the psu issue, this is not a good machine to buy if your intention is to turn it into a gaming machine."
 
Solution