Haha, it only posted a bit of what I had written?! Hmm strange. Ok here I go again lol.
My spec:
Asus Maximus VI Hero
Intel i5-4570
8gb kingston blue series ram
120gb Kingston ssd
2tb Toshiba hdd.
VTX R9-270X GPU
Corsair CX600
Basically I set up all my pc first without GPU to make sure everything was working on etc, which it did.
The issue started when I placed my GPU into slot 1 on the mobo (PCI 3.0 x16). Nothing happened, not even bios. Tried various settings from searching on here but nothing worked. I then tried it in slot 2 (not sure what it is rated etc as manual was a little unclear). Anyways, it fired up perfectly & works fine. I did try a different 6 pin connector from my psu but wouldn't have thought that would be the issue?
Anyways thanks again for being patient, hopefully it will post all of it this time