I just got two MSI GTX 1050 TI grafich cards, i was curious if i can make double GPU mining using my PC just to see. I can boot pc up with one GPU installed and start mining with NiceHash miner, wasnt hard to test that out. After i use PCI express Riser ( i connect it to the MB, I connect 6 pin power and also i power up my Riser with Molex cable ). So i know everything is set up the wey it should be. My PSU is 550 W so it should be enough. When i boot it up both GPUs get the power ( fans spinning & LED turns on ). But i get no signal on my screen , i tried putting my HDMI cable into other GPU also and still no signal. MB gives me one BEEP that everything is OK. Im using http://www.gigabyte.com.au/Motherboard/GA-MA770-ES3-rev-10#ov this motherboard with latest F4 bios updates. Does it mean i should try this in other MB or what? Ty for the help.