Help with mining on 2x GPU

[PatBas]

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.

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[Cereberus]

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.

Sounds pretty much like your riser or motherboard problem. I have a Corsair VS550 PSU and I am running one GTX 1060 and one GTX 1050 ti and everything is running fine. Motherboard is a cheap MSI latest generation with H110 chipset. I would change the places of the card, put this one which gives black screen directly to x16 slot. Another thing, a DDR2 ram board is not that suitable for mining but I maybe wrong here. A friend of mine have such board and it keeps restarting and crashing. Here is a picture showing that is no problem mining with 2 cards with a 550 watt PSU considering your PSU is a premium brand and not a chinese type. The chinese type may say 550 watt but usually max it is capable is only 150 watt so this maybe another problem.

[PatBas]

I managed them both to get to work now, it was the power cable problem i used for second GPU. Bought new one and it works now. But now i got another problem, my MoBO stupidly using second GPU as a MAIN PCI E ( its in pci express x1 slot AND below the first gpu ). So i cant realy use the PC for gaming now or anything else. Can i change that or no? i guess there could be an option in BIOS or nvidia control center to make this happen? or should i try to use my second gpu in other PCI e x1 slots? ty for all the help

[Undefined31415]

I managed them both to get to work now, it was the power cable problem i used for second GPU. Bought new one and it works now. But now i got another problem, my MoBO stupidly using second GPU as a MAIN PCI E ( its in pci express x1 slot AND below the first gpu ). So i cant realy use the PC for gaming now or anything else. Can i change that or no? i guess there could be an option in BIOS or nvidia control center to make this happen? or should i try to use my second gpu in other PCI e x1 slots? ty for all the help

I would look in the bios to see if you can manually set your primary adapter to the GPU in the physical x16 slot. It is a little unusual for it to default to that x1 slot, but it is an old motherboard.