Can someone help me?
Need to confirm the rx cards will they have 1x 8 pin jack?
Not 2 jacks.
Link the risers you purchased please.
As i read and ask on other forums they said 1x8pin is enough for rx 580.
Risers i bought:
3x https://www.aliexpress.com/item/60cm-PCI-E-PCI-Express-Riser-Card-1X-to-16X-USB-3-0-Extender-Graphic-Card/32820722061.html?spm=a2g0s.9042311.0.0.Gk8Ji9
2x https://www.aliexpress.com/item/2017-NEW-60CM-PCI-Express-PCI-E-1X-to-16X-Riser-Card-Extender-PCIE-Adapter-USB/32821008731.html?spm=a2g0s.9042311.0.0.Gk8Ji9
Yea, i could swear i calculated 850 will be enough... now i check and recommended is 950w :/ Is it possible so i use 850w for 3 cards and another psu for another card? (possible more in future) ? Im thinking ordering motherboard H81 Pro BTC, if this is all ok, it should be good?
Yeah you can make use combination of more than 1 psu for this. Your risers is fine, just need 5 Sata power connection.