Worked immediately with another mainboard.
Using the Asus TUF H470 Pro now.
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did you just return the asrock board?
yes of course
So I figured it out finally… it was csm… all along
csm must be disabled.
I have the same issue. Can get only 1 GPU to work with risers on this motherboard.
Replacing it with a H 81 pro BTC and all 5 GPU’s work.
Disable CSM as Alcrowser suggest is not working.
Anyone a solution??
— Update, it works fine with Win10 so the board it self recognize all GPU’s the issue is only on Hive OS / Simplemining OS.Still need a sollution for that—
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@Alcrowser
You got them al 6 to work with HiveOS?
Can you chare you full settings / BIOS config save file?
I think I’m having this same issue. Can you tell me where the CSM setting is please?
Just seeing this now…
So been through minerstat and windows 10 OS…
With hand full of motherboard over the last few months…
only things that truly matter are listed below
4 g decoding = enabled
csm = disabled
all PCIe ports speeds are set to 2.0 or 1.0.
asrock settings that work for me are in pictures
For all testing of booting issues, I would use windows. once you can get windows to reconize your cards with bios settings, or at least past post boot then move on to other OSs.
Also Always plug your video connection to ever card. The display might be on one of the other cards; depending on your motherboard, lol.
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i am also having same problem was trying to build a rig of 5 cards 3080 gigabyte was facing the same issue tried everything am using asrock steel legend after 2nd card trying to add 3rd one it says same error an its really hard to make last 2 work again have tried the 4g decoding also but didnt tried csm settings will try the same or else will have to move to windows hope that works for me
Hey guys, I had the same issue using ASRock Z490 Phantom Gaming 4 with one 3060 and two 3070. Coudn’t get the second 3070 to be recognized in the device manager and even had problems booting in the first place.
The boot problem was solved by disabling fast boot, disabling CSM, DMI Link speed is set to Gen2, all PCI-E link speeds are set to Gen2, 4G Decoding is enabled. But this still didn’t resolve the problem with the third card not being recognised even with these settings, collocating more virtual memory, changing to multiple risers, trying different PSU etc.
The solution in my case was to add one more stick of RAM, initialy I had only 4GB (Corsair ValueRAM 2666), so I had a spare 4GB, and after adding it - everything works fine!!
Happy to hear that it worked for u an its really strange that adding ram can also resolve some issues but in mine case i have to change the processor i was previously using 3200g ryzen which was not allowing the 3rd card but now as i have changed the same to 2200g now its working with 4 cards … But now new kind of problem has arrived though 4 cards are working now but 5th one shows low power an doesnt work i dont know why it is doing so i am using 1 850 w psu 1 750 w for the same rig but still i dont know why it is showing less power consumption an not working but as i take the 5th card out it all works fine an even the 4th card is also showing the lesser power consumption … will try to change the PSU today
I am posting the pic of hive main screen see the first card is using or showing just 10W but its working … Strange!
Appreciate the screenshots / settings. Unfortunately, I’m still stuck on 2 GPUs. I can’t get the OS (Windows 10) to boot with the 3rd one plugged in. I have 16GB ram so I don’t think that’s the issue. I copied your settings. Any other ideas to try? I’m kind of at a loss on what to do at this point. I tried multiple GPUs/riser combinations. Two will boot right up but the 3rd I just get black screened.
Just realized every time I disable CSM it enables automatically. I googled and read I may have to reinstall windows to get it to stay disabled? Ugh.
Great, good find.
I had that happen but still works with one card.
Updating bios firmware helped also.
Yours will not even post with csm enabled. What motherboard/process are you using?
It will post with 2 GPUs and CSM enabled but not 3. I’m going to have to disable CSM and then reinstall Windows once I do is my understanding. Hopefully, that does the trick. Thanks for following up!
So today was reinstall Windows project day and it was a huge fail. No matter what I do when I disable the CSM it automatically restarts and then turns itself back on even if I try to boot from USB to reinstall Windows. Any ideas on what I can try to fix that? Once again I’m stuck with 2 GPUs. The 3rd won’t boot at all with CSM enabled and disabling it is apparently impossible.
What the hardware motherboard Cpu?
Are you at the latest firmware?
I don’t understand your first question?
Next time I restart I will look at the firmware version. I’m not actually sure. It’s whatever came with it. I didn’t mess with it.
Motherboard part number a cpu part number.
You Motherboard might not support more gpus
You should always install latest version of your bios firmware for your motherboard.