H110 Pro BTC+ Not Seeing 12 Cards

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   I have this board with 12 MSI RX 550. Windows 10 Home does not recognize the cards are installed. When I plugged one card in the 16x PCIe slot. Windows sees that one. But if I use the riser 1x PCIe. It does not see any cards. 

From what I read the board is suppose to work out of the box. I cleared the CMOS to make sure it was factory defaults. 

Is there something I need to change in the bios or do I need a different OS?

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juggernautsei Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Sep 2017 Location: VA Status: Offline Points: 4	Post Options Post Reply Quote juggernautsei Report Post Thanks(0) Quote Reply Topic: H110 Pro BTC+ Not Seeing 12 Cards Posted: 27 Sep 2017 at 1:41am
	I have this board with 12 MSI RX 550. Windows 10 Home does not recognize the cards are installed. When I plugged one card in the 16x PCIe slot. Windows sees that one. But if I use the riser 1x PCIe. It does not see any cards. From what I read the board is suppose to work out of the box. I cleared the CMOS to make sure it was factory defaults. Is there something I need to change in the bios or do I need a different OS?

juggernautsei Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Sep 2017 Location: VA Status: Offline Points: 4	Post Options Post Reply Quote juggernautsei Report Post Thanks(0) Quote Reply Posted: 28 Sep 2017 at 7:53pm
	There are no videos or write-ups on about this anywhere I can find. I only found a couple of hints to do this. After much reading, I figured it out and I wondered why no one has written this down. So, here goes. The motherboard does what ASRock says out of the box with no changes to the bios it will recognize a riser plugged into the 16x port on the board. Plug that one in first and install windows. Don't ever used the onboard video. You will waste time. Next, add one card. I choose to add to the left of the 16x port first since I noted the ports were number Port1 and Port1_1, Port2 and Port2_2 and so on. This seemed to work out. I had to plug one card in and boot into windows to see if the card was picked up by the os. I did find some of the risers were unstable and some did not work at all. So out of the 12 risers, I bought. Only half of them worked.

Jimmy23 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Oct 2017 Status: Offline Points: 4	Post Options Post Reply Quote Jimmy23 Report Post Thanks(0) Quote Reply Posted: 09 Oct 2017 at 3:19am
	Hi, We have the same problem here ... But We try to set up 13 amd gpu with ethos And it works but after 3 hours some of the GPUs Crashs. Did you fixed it ????

zloi_krolik Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Feb 2018 Location: RUS Status: Offline Points: 2	Post Options Post Reply Quote zloi_krolik Report Post Thanks(0) Quote Reply Posted: 11 Feb 2018 at 7:02pm
	you solved this problem? Edited by zloi_krolik - 11 Feb 2018 at 7:03pm