Could not agree more. I am building these systems for a client and ordered an extra 5 of them.....Yeah RIG two looks like it will end up using 3 of these new backup ones and I still have two more 6 gpu systems left lol. I believe it was the owner or just an employee of miningrigs mentioned they had some models in the past that had as high as a 50% failure rate! Man I just wish we could get some reliable ones.

I am an experienced System Builder (SI or whatever the acronym someone is used to) and boy troubleshooting takes time. I dont know how someone doing this without or with little system experience handles this.

Hi guys,

I want to share that I got the 6 RX 470 cards working! Now getting them running on rig 2 is the problem child.

Here is what seems to work:
Asrock AB350 PRO4 w/R5 1600
Bios 2.6 (F9 load UEFI Defaults - done, no need for anything else)
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I installed Windows 10 PRO with one video card on the native PCI-e Slot, installed drivers, etc. I did not install windows updates.
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I then assembled the system (miningrigs server chassis) but all as mentioned the 6th card caused a boot loop so I am suggesting this below if your 6 cards dont work off the bat.
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Install the main GPU with riser and boot to windows. Install one card at a time until all cards are working. When I get to desktop I right click on the windows start icon on the lower left of the screen, select device manager then look for the "Display Adapters" tab and make sure all cards are listed there without an exclamation mark.
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If one card does not work tips:
-If a card fails to recognize remove it and boot the system in the last known working state, even if that is one GPU. Then add cards back one at a time.
-Kill power to the power supply when making changes to the hardware
-Disconnect your internet connection during this process
-DO NOT BE SURPRISED TO HAVE MORE THAN ONE BAD RISER
-WRITE THINGS DOWN
-I think a lot of the issues is that once a bad riser is introduced it freaks out windows. On rig two I have had 2 bad risers but each time I narrowed it down I needed to go back to one gpu and work my way back up slowly till I got now 5 gpu mining. Swapping risers now for the 6th one and hopefully that one will be at 6 too.
-Consider reinstalling drivers BUT uninstall drivers with a program called "Display Driver Uninstaller" or "DDU" which guru3d hosts the download. I prefer uninstalling drivers if the system doesnt come back to a known good working state. I also use the safe mode setting in the program.
-BE PATIENT

I think that sums it up for my experience. I think the main issue is that there is a high failure rate on Riser cards and if one part of that component (I even had a bad USB cable on one) it freaks out Windows.

Good Luck
-Anthony

For the guys that had 6 RX cards working with the Asrock AB350 pro4, was there any BIOS settings you guys messed with? I cant get 6 to work in windows 10 but 5 works.

I did not see any settings in the BIOS (P2.6) that could effect anything with pcie.

Thanks