Bagge6, if you mine in a place where noise is not a big issue, buy second hand HP server PSUS, which you can find on EBAY, they are cheap and kick ass.
Here is an example of a 1200W that can run fine at a load of 850 if that is what you need for your rig:

https://www.ebay.com/itm/HP-HSTNS-PD11-DPS-1200FB-1200W-Power-Supply-Ethereum-Mining-Crypto/174647489637?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20190920091355%26meid%3D4459d9a4fc064355909c8223b7220b06%26pid%3D100036%26rk%3D1%26rkt%3D12%26sd%3D353344116397%26itm%3D174647489637%26pmt%3D0%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganic%26brand%3DHP&_trksid=p2047675.c100036.m2109

And the board with 12 cables that have 6+2 pins at the other end:
https://www.ebay.com/itm/DPS-1200FB-QB-A-12-ports-Power-Supply-Breakout-Board-Adapter-Cables-for-Mining/264275631650

Under load the fan will get a little louder than a regular gamer PSU so if you keep your miner in your living room or bedroom, it's not a good idea but if your miner is in a basement or garage or something, these server grade PSUs are the best bang for the buck.