Hello everyone.
I have 2* 3090 running on riser, when i want to add the 3d one i have à Black screen when powering and no signal is détected on the screen. I need do a cmos and run 2 only cards.
I use à AMD athlon 3000g as processor ( very low watt consumption)
Any one have an idea of what is going on ? How can you guys run more then 2 gpu on this motherboard ?
Topic: Asus Rog Strix B450-f Gaming Amd Ryzen (Read 798 times)
Hi there! I am writing to you from Argentina! Help here !!! I have an AM4 - Asus Rog Strix B450-F GAMING II with 4 gpu RX570 8gb. With a GPU everything is fine. When I add the other 3 the mother does not work. Take everything out, try 2 and the same does not start. I already put everything in Gen2 and gen1. Test GPUs with raisers and onboard. I flashed the bios, tried different slots and nothing ... there is no way. Now I get a video error, I see vertical stripes, when testing with 2 but the motherboard does not start. Several tell me that it is a bios configuration issue but what I tried did not work for me. what dou you recommend?
I have several of these motherboards. They are my go to board. I don't like to build rigs larger than 6 GPUs, but I have tested and can run all 6 PCIe slots and 2x M.2 with adapters.
hi guys,
your tips have worked wonderfully.
I have been running 6 cards for 2 weeks without any problems.
Have any of you already tested 8 cards?
So 6x Pci-e + 2x m.2 interface.
I already have the m.2 to pci-e adapters, just waiting for the cards.
If so, how must the BIOS be set?
Thanks already
My board is full of 570 and 580s. Only the one top pci do I put the card directly on the board. The rest I use risers powered by a 1200w power supply. I do that so I have video to my monitor.
I would suggest you not over clock so high. Bring them down and see if it gets better. I had the latest bios as well. Think my settings are 1200 and 2150 roughly. Undervolted differently per card. All modded. Using blockchain drivers.
Because I’m running Polaris I’m using 5.1c. Not sure what else to tell you. Mine runs a month at a time with no problems. Maybe try to find the problem. Is the 5700xt modded? Mine are modded
On my asrock board I use 2 5700xt and they would shut down several times a day. Found the problem was I was using 1330 for clock.(I think of hand) I backed it down 20 or so and been smooth sailing.
Because you are only running 8 fb ram maybe try adding virtual memory as well.
Are the risers new?
I would suggest you not over clock so high. Bring them down and see if it gets better. I had the latest bios as well. Think my settings are 1200 and 2150 roughly. Undervolted differently per card. All modded. Using blockchain drivers.
Because I’m running Polaris I’m using 5.1c. Not sure what else to tell you. Mine runs a month at a time with no problems. Maybe try to find the problem. Is the 5700xt modded? Mine are modded
On my asrock board I use 2 5700xt and they would shut down several times a day. Found the problem was I was using 1330 for clock.(I think of hand) I backed it down 20 or so and been smooth sailing.
Because you are only running 8 fb ram maybe try adding virtual memory as well.
Are the risers new?
Can you share your BIOS Version and settings?
I have this board and I cannot get it to post more than 1 GPU on risers.
Im running same board, 3060 ti, vega 56 and 1660 super.
After BIOS update, disabling fast boot, enabling pciex RAID and using gen 2, I was able to boot with one card on mobo, and two with risers. But then all cards are running only about half the speed they should....
With 3060ti mobo, and vega 56 riser I get about 95MH/s
With 3060ti mobo, vega 56 with riser and 1660 super with riser I get total of 70 MH/s. So something is limiting the hashrate terribly....
Both risers tested separately and they work. Any ideas what to test next?
Any Ideas?
Now I tested same setup but with different mobo. Same results
Could it be the PSU... Im powering risers with molex to 6pin adapters. Maybe the PSU has problems when it needs to power two risers at the same time?
yes, same sheit that earlier, 
but with same settings that got it to work properly
but with same settings that got it to work properly
you get the blinking screen thing?
fookin shit, had to turn off power because of an eletrician, and when rebooting problem was back! should pciex16_3 control be put at 1X or 4X maybe?
ty, all 6 cards working! had to enable 4g, pciex raid and disable fast boot
ty, all 6 cards working! had to enable 4g, pciex raid and disable fast boot
I have several of these motherboards. They are my go to board. I don't like to build rigs larger than 6 GPUs, but I have tested and can run all 6 PCIe slots and 2x M.2 with adapters.
thnx, wll try :-)
i had this before on a few boards. is it flashing ?
if so you need to find a way that you can ddu the drivers and then reinstall them.
something went corrupt.
i was able to get into my system with teamviewer before when my screen was flashing and pixeled.
perhaps its your card not the board.
or if you have a old video card say like a vga one try that.
i have a rage 512 that i use for situations like that.
if so you need to find a way that you can ddu the drivers and then reinstall them.
something went corrupt.
i was able to get into my system with teamviewer before when my screen was flashing and pixeled.
perhaps its your card not the board.
or if you have a old video card say like a vga one try that.
i have a rage 512 that i use for situations like that.
cant paste pic, but u know the tv colorpixelsheit when somethings wrong 
i tried your suggestion with one gpu in mainslot and 1 card with riser in a small slot, but i still gets this https://i.pinimg.com/originals/8d/4a/42/8d4a42a02545d49fd3393903d71bebed.jpg][url]https://i.pinimg.com/originals/8d/4a/42/8d4a42a02545d49fd3393903d71bebed.jpg[/url]
It’s not a mining board. Those small ones work. Have used my board for over a year and probably least amount of downtime on my boards. Use the small ports.
hey waywoos, i got a reply from asus who said i the motherboard wasnt made for mining and that i couldt use the smallest ports for risers do u use one card in main graphicsport and the rest with risers? My motherboard is ASUS ROG STRIX B450-f Gaming 2, might there be a differense with ASUS ROG STRIX B450-f Gaming and ASUS ROG STRIX B450-f Gaming 2?
do u use one card in main graphicsport and the rest with risers? My motherboard is ASUS ROG STRIX B450-f Gaming 2, might there be a differense with ASUS ROG STRIX B450-f Gaming and ASUS ROG STRIX B450-f Gaming 2?
ok i will try that, thnx 
Put the video card in the biggest top slot. Use that for monitor. Put the riser on various small pci slots.
thnx for reply, ive tried with one card and riser and miner works fine ( yes ive adjusted VM) , when i try the other card that also works fine, but when i try both with risers i get a colorful pixel picture on my screen. ive updated bios and i get the colorpixelsscreen both with default bios setting and with pcie gen2, and 4G enabled. so i know that risers work, cards work, but not together ....
waywoos! is it possible to share your bios settings, im strugglin with my MB, tried all so far as i can find on internet! ive got 4g enabled, and fastboot disabled and gen2, but i might miss out on some pciex settings!
regards
kenron
regards
kenron
i didnt touch a single thing in the bios. just have the latest bios.
left it all alone minus i overclocked slightly for my 3900x so i can mine monero on 23 threads at the same time.
i even have a m.2 nvme hd attached to the board.
not sure what you are struggling for. i even cleared with cmos before after failed oc attempts.
do you have added virtual memory?
performance power settings?
those are really only things i change with windows.
Jump to: