Hi guys,

After a lot of forums, youtube vids and tomshardware I have managed to fix 5 gpus that weren't working well before, just one left! I even managed to make a dual rig amd+nividia. Anyway, let's get to the case:

The problem is with a 1070. If I put it directly in the 16 lane slot in motherboard, it works. If I place it on a riser (for temperature control) in the rig, it wont work and my PC won't boot. I am sure I am doing something wrong. I have 7th generation risers with the 6 pin to SATA and the 1070 needs 2x6 pin to 8 pin to psu. I tried the following:

both 2x6+2 (the +2 not needed) to the psu, 6 pin to sata from riser to a fresh sata cable with space for 3 more sata connections but I use only this sata slot (as per Angry Chickens video never more than 2 on same SATA line. Question I have here is is my card getting to much power and that's why psu prevents booting (75 per input, makes for 225 total and only 150 needed)?

Questions: 

1. Would it work if I leave the 2x6 pin in (gpu to psu) and then just unplug the sata as a whole as riser/card get's enough power anyway?
2. I really don't want to do this but if it's only exception.... can I use 2 6 pin to molex and then a fresh 3-4 slot molex cable from psu to riser/gpu?

Kind regards,

D