Topic: Anyone can test these 6 Pcie slots Ryzen mobos? - page 7. (Read 17999 times)

Nvidia update driver,latest from 29.

Update from me, I have been successful with 6x RX570's in this board but I cannot get any version of nvidia drivers to allow 5 (or 6) to boot into Win10Pro.

I believe given this it is 100% a driver issue and possibly just a matter of hitting the right one to get 6 nvidia cards into Windows.

Thanks for the update!!!  I will try this when my new risers come in.. Keep us updated if you get that 6th card to work.   

Well I can confirm that 5 gpus  (1060's) on powered risers work in the ab350 pro4 and Windows 10. No bios settings helped but a few of nvidia driver re-installs and trial and error got it going. To outline the process I used and re-did a few times to make sure...

(note: best to start with no drivers installed so clean that up first)
(note2: Windows 10 worked Windows 7 didn't although I didn't try this method as long on Win7)


1. cards in risers for slots 1 and 2
2. boot and install drivers
3. restart.
4. shutdown
5. cards in risers for slots 4 and 5
6. boot and make sure all 4 appear under display adapters with 2 showing warning for needing a restart
7. reboot to make windows will boot with 4 cards recognized.

The last one was tricky and took a few tries to be honest.

8. card in riser in slot 6.
9. during the boot and after the windows logo appears and the bubbles are circling below , unplug the usb from the adapter that is in slot 6 and let it finish booting to windows.
10. look in the device setting again and you should see a 5th entry in display adapters with a warning like in step 6  or a new entry under "other" for a VGA adapter.
11. plug the usb back into the adapter and in device settings "re-scan for changes" and make sure a 5th entry is still under display adapters.
12. restart and you should be good to go with 5...which is better than 4  

Hopefully this all work for someone. It took me 3 iterations of complete driver uninstalls and re-installs to get it to where I could consistently

I can overclock all cards with MSI afterburner and my eth miner has been running for +24 hr at this point.

I might work on getting the 6th card going but that 3rd slot really doesn't seem to want to work.

Bump, hoping someone can post back about 6 GPU's on this board. Cheers.

How did you make it work? I bought this mainboard and CPU, but it will only see the first GPU. I did not see any option in the BIOS to let me use the other cards for compute only, or enable them in any way.

Asrock AB350 Pro4 windows 10 using nvidia cards with ver 006c risers  4 cards work fine add a 5th and windows will not boot...

I actually have a B350-BTC where I'm fairly certain I'm having the same riser issues as you.  Curious where you got your batch of V006 risers from, and where you ordered the working replacements.

I have a new set on the way of 006C's as well to try, but wouldn't mind stocking some known working spares to have on the way just in case.

Asrock AB350 Pro4: I have the same issue with Nvidia cards and Win 10. Got stuck when installing the 5th card. I even purchased the second board thinking the first one had an issue lol.

Much appreciated if someone comes with a solution

Not that I remember, it was quite a while ago that I set the board up though.

It has 5 x GPU's running without issues, and I expect it would do 6 if I had a PSU here to support adding a 6th GPU.

I couldnt even get 3, 2 works, 3 fails, and have to start over at 1.

I could not get past 4 cards
Did you change anything at Bios?
If yes, could you tell us what has changed?
I thank you

I have the asrock ab350 pro4. it worked perfectly with 6x rx580 in windows10, but will fail to install drivers for 4th card if you're using nvidia gpu-s.
so I can recommend for amd mining, but not for nvidia. maybe in a future bios update..?

ASRock Fatal1ty AB350 Gaming K4 is capping out at 3 GPUs for me under Windows 10... Tried adding 1 card at a time with full power off and CMOS clear between each card but at 4 cards, 1 of them will fail to detect correctly and only 3 or even only 2 will be able to mine. Occasional BSOD with 4 cards, 5 cards is nearly a guaranteed BSOD or a laggy and unusable windows until a BSOD within a minute after booting.

No PCIe options in BIOS, page file increase made no difference and extra ram made no difference.

Was testing with a sata connected SSD and tried multiple clean installs of win 10 with nvidia drivers 368.81, 375.70 and the latest 382.53 with the exact same results.

The 5x V006 PCIe riser boards didn't even power up the GPU's (tried direct 4pin molex and sata to 4pin adapters and even new USB cables) so i suspect that entire batch was faulty but the V007S ones all worked without issue.

Gave up and resorted to SimpleMining (SMOS), first boot with all 5 cards connected and been stable and mining at 130MH/s for 12 hours now with 5x GTX 1070's... Sadly they are only at the stock 26MH/s and not the 29.5MH/s i was able able to push them to in windows as the overclock function in SMOS does not work with the nvidia build.


tldr version, dont get the ASRock Fatal1ty AB350 Gaming K4 for windows mining...

I had no issues getting the AB350 Pro 4 to detect and mine with 6 x GPU's running EthOS.

I confirm this too, tested and working with Ryzen 5 1400.

To answer the OP:

ASROCK AB350 Pro 4 - Craps out after 4 cards. Will POST, but Windows won't complete boot. Tried using M.2 adapters and everything, but it didn't work. Maybe in the future with bios updates.

Gigabyte AB350 Gaming 3 - 5 cards works without any trouble. I have an M.2 SSD in place, so I can't test 6, but I suspect it will work.

ASROCK x370 Fatal1ty Gaming K4 - 7 cards works, 8 won't POST (using M.2 adapters). It's a bit picky about connecting cards - Turn off the power supply when connecting a card; don't just shut the machine down. If it won't boot after adding a card, turn off the switch on the PSU and clear CMOS. That usually fixed it as I added the cards 1 by 1 until I got 7 installed.

The Gigabyte was by far the easiest to get booting and working. If you're looking for a cheap board, it's not a bad choice. The Fatal1ty is nice overall, though. CPU overclocking is far better, the two M.2 slots is nice, the extra mini M.2 for wifi is nice and the sound card is great as well.

Actually...

Went into device manager and found a device in "Other Devices" that had no driver but was labeled as a VGA card. I right clicked to properties and clicked "update driver" in the dialog box. I let it search for the driver and it installed it all by itself.

Restarted windows and now I have FIVE GPUs running on MSI x370.

I wonder if a 6th will work at this point

Any word on the x370?

I bought MSI x370 and successfully detected four GPUs but can't get the 5th to light up.

Curious if there is something I can do in the BIOS to get it to work or if this board might only do four and that's that.

Thanks.

Just to confirm, is it this motherboard? --- https://www.newegg.com/Product/Product.aspx?Item=9SIA85V5J87066&cm_re=AB350_pro_4-_-13-157-761-_-Product --- Does it work out of the box with 6 GPUs or did you need to adjust any specific Bios settings? Thanks