My GTX 1060 3Gb rig, won't detect 2 other cards

[SunnyTheMiner]

Hello! I am using an Asrock H81 Pro BTC motherboard with 3 GTX 1060 3Gb on Windows 10 Pro 64x bit. with an 850 watt PSU. The thing is the system only detects one card(the other 2 aren't even grayed out in device manager, they are just not there). I have tried wiping clean with DDU and installing the latest Nvidia drivers, but it always detects only 1 card, and I have no idea why. Please help me! Ask me for more details if you need to.

Thank you!

[Undefined31415]

Which card are you using for display? Is it one that's plugged into the physical PCIe x16 slot?

Have you tried clearing CMOS?

Have you tested all cards and risers individually?

[SunnyTheMiner]

When I plug in a card into the x16 slot the screen goes black and doesn't show anything, the card I am using for the display is the one that works. What is a CMOS? I will try and test all the cards.

[giveen1]

When I plug in a card into the x16 slot the screen goes black and doesn't show anything, the card I am using for the display is the one that works. What is a CMOS? I will try and test all the cards.

Enable Gen2 in the BIOS, set onboard as the primary graphics, update to Windows 10 1709 with the Jan 2018 CU

[SunnyTheMiner]

Where do I find the setting to do so? Can you please tell me, or link a tutorial.

[jillscarbrough]

What is a CMOS? I will try and test all the cards.

CMOS (complementary metal-oxide-semiconductor) for storing bios settings.

Have you tried clearing CMOS?

means to reset the BIOS settings to its default level.

how to clear CMOS:
1. Unplug and plug your CMOS battery to Motherboard
2. through jumper switch.

[SunnyTheMiner]

I will try this, will come back with results.