Link to riser
https://www.amazon.com/Powered-Extender-Adapter-Litecoin-Bitcoin/dp/B00JEYCMTK/ref=sr_1_3?ie=UTF8&qid=1508616887&sr=8-3&keywords=PCIEx1+riser
Thanks. But what do you mean by tweaks to cables? How can I do that, is there any tutorial available?
Is this your CPU?
https://linustechtips.com/main/uploads/monthly_2017_07/595dfbd9eccce_savagebadpc.jpg.30f63bcdab267f9b5fb33c4da4bf96b0.jpg
PSU is actually different for you motherboard.
you might need this
https://www.youtube.com/watch?v=0VCslFs6lW0
Thanks for the research! You are right, the problem is that the motherboard has this funny 6-pin switch and it seems that the cable from the youtube might help. This is how the motherboard looks like:
https://imgur.com/a/uP9EG