Pc Hangs, when using intense gpu load (not sure)

[xapnsma]

I have a Maximus VI Hero and wanted to upgrade my HDD. I also wanted to have a future proof product so i said why not, lets buy a m.2 ssd. The only problem is that my current motherboard has not a m.2 slot, so i used a asus pci to m.2 adapter and modded my bios to use it as a boot drive. I have it along with my r270x amd graphics card.

 

When using chrome or watching videos it used to crash regularly when using windows 10 even when i had the hdd boot drive. I cheched my drivers, did a mem86 test and found that a stick of ram is causing problems. I used the other one for 24 hours on mem86 and passed. Still the issue ensued. I installed ubuntu to see if it was a windows problem but i can still hang my pc when gaming in ubuntu. Usually at intense games.

 

How do i approach my troubleshooting? Does my problem lie to the fact that i use all my pci x16 lanes between my boot drive and my graphics card? That would not explaing the pc hangs i haid while on hdd. Is it just a faulty amd graphics card? Taking off my Graphics card?