Topic: Anyone can test these 6 Pcie slots Ryzen mobos? - page 8. (Read 18000 times)

The AB350 pro 4 works with 6 GPUs, I have 2 along with a ryzen 7 in both

I also am watching this thread with interest. https://www.techporn.ph/biostar-tb350-btc-first-b350-bitcoin-am4-motherboard/ it seems that the chipset is capable of 6 gpu it might just be down to bios settings/need for bios updates on various boards.

I havw a 6 slot X370 mobo in rma right now, once it comes back I plan to test it with 6 GPUs.... it may be weeks before that happens.  For what it's worth, it's a Biostar X370GT7 that had a bad bios update.

No, sorry. I only have two cards. The issues I described happened with a single card.

I can confirm up to two cards detected by Windows with risers on the 370x.

Hi! i will like to confirm something about this, so you already tested the x370 gaming pro carbon with 6 cards + windows and it worked just fine??? i really need to know this, where i live this mobo would be cheaper than any other option actually for mining, thank you for the testing info already

The second mobo you linked, the gigabyte, I can confirm DOESN'T work with 6. I have it, and tried to get 6 working for a week, finally just left it at 5.

I went ahead and bought an MSI 370x Gaming Pro Carbon with a Ryzen 7 1700.
I went through quite a few issues installing linux. I tried with Ubuntu 17.04, Fedora 25, and Arch from April, however almost all crashed at some point due to different kernel issues during the install.

In the end, the cause of the issues was the use of the PCIe 16x to 1x riser that I used to connect my Sapphire RX480.
After installing linux, I did some testing, and this issue is present whenever connecting that card through the riser to any of the 1x slots. If I use the riser to connect to the 16x slots, the problem is not there.

Also for testing's sake, I installed Win10, and the the cards work fine using the riser on the 1x slots.

The incompatibility appears to be:
    AM4 + PCIe riser on x1 slot + linux

Unfortunately, the board only has 3 full-length PCIe slots, so it leaves me with 3 slots that cause a crash on boot with linux, so they can't be used.

The following does work:
    AM4 + PCIe riser on x16 + linux or windows
    Intel mobo + PCIe riser on x1 slot + linux or windows
    AM4 + PCIe riser on x1 + Ubuntu 17.04 w/ kernel arg acpi=off -> Only one core is visible in /proc/cpuinfo BAD

Unfortunately, I am not finding much info on the topic, probably because the board is new, and on the expensive side for mining purposes.

I am hoping to find a fix before giving up and upgrading my desktop with these parts.

Before anyone suggests differently, just using Window$ is not an option for me, because I am a bit of an open-source zealot.

Has anyone tested an AM4 motherboard for mining yet? My main PC has one with 6 PCI-E slots, but it's my every day workstation and gaming rig, so I really don't want to take it out and put it in an open air mining frame just to test at this point. I wish I had thought of it when I first bought the motherboard. :/

There are nice looking B350 motherboards with 6 slots for $100 or less that would be great for mining if they worked. Ryzen CPUs are quite nice at mining Cryptonight too.

I had 9 rigs and the pandaminer in my garage.

4 x 8 = 32 gpus  the biostar z170's and 1 asrock and 1 h81 asrock
5 x 1 =   5 gpus  the aorus


1 test rig in the basement

I sold around 20 msi rx 470 4gb cards.

I was going to add new model 500  when they come.

the mobos were paid for.

My score was  made  cause I went higher end cpus.  mostly i5 6400t in the biostar z170's

I also don't flash the cards  so I can do sky high  -ethi 22 and -dcri 45

Dumb luck really.  But  it is making and extra 125 usd a month after power.


103 for a psu.  http://www.ebay.com/itm/262772079663?   I got tons of these  with a 10% coupon
0    for risers
5   for ssd  http://www.ebay.com/itm/112143250197?  also a 10% coupon
0  for smOS  https://simplemining.net/
100    https://www.newegg.com/Product/Product.aspx?Item=N82E16813138421  some got them as low as 61 on a sale

So for now I will run 2 cards on a 4 card mobo and take advantage of the decred money


My point is  6 card boards  are not always the best way to mine.  but they can be good.

  So you have perfect or close to perfect reliability?
I get that it is not practical  to start  with all those empty slots.
I remember  you had more then 30 cards instead of 13.

this does 5

https://www.newegg.com/Product/Product.aspx?Item=N82E16813128966&cm_re=aorus-_-13-128-966-_-Product

my review is there under philip a

this does 5

https://www.amazon.com/gp/product/B01N2V0AHI/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1


my guess is both do six  but I don't bother to try

I have discovered an exploit  so  I use 2 cards per board  and miner eth and decred only  using claymore 8.

I can do this since I had  all 4 card riser less builds  I sold off  ½ my gpus to get ready for new 500 series amd.

I had the rigs paid for   so to play around I tried  running 2 cards a rig  rather then the 4. very easy on the gear.

I discovered  that eth and decred  can run at settings of -ethi 22 and -dcri 45  and

 for my 6 two card rigs  and 1 one card rig and 1 pandaminer

power went from 12 amps x 240 volts to 13 amps 240 volts

or 2880 watts to 3120 watts  that is 240 more watts  with a jump in eth of 20-25mh  for all cards  plus over 7000mh in decred

this only works if you have a good cpu like an i5  all my boards have an i5 except the panda miner


so my increase in hash is in my 4 card rigs running  2 or 1 card.

those 13 cards across 7 rigs now do

Very interesting. Which mobo are you using? 6 cards definitely is better than 4 or 5.

it is costly  and I have found 5 and 6 card  intel z270's mobos

I can use a intel i5 6400t that is 130 on ebay and a board for 109  cost = 239



amd the cpu is 399  plus 100 = 499

I don't recommend it.

i hope they are suited for 5-6 gpu because the fact that they have so many x1 isn't a guranteed that they will work, the z97 pro 4 for example have 5 slot, but the x1 don't work with risers...

There are some economical 5-6 pciex slot motherboards available for the am4 socket.
I am very interested too.

Sharks charge way to much for Asrock Btc boards.

I don't see the point of buying a 500$ cpu for 500h/s monero, better get a cheap 50$ cpu, and take the 450$ to buy more GPU's, will keep an eye on the motherboard capabilities @6gpus though.

ASRock AB350 Pro4, $90 - https://www.newegg.com/Product/Product.aspx?Item=N82E16813157761&cm_re=am4-_-13-157-761-_-Product
ASRock Fatal1ty AB350 Gaming K4 , $104 - https://www.newegg.com/Product/Product.aspx?Item=N82E16813157759&cm_re=am4-_-13-157-759-_-Product
ASRock Fatal1ty X370 Gaming K4, $149 - https://www.newegg.com/Product/Product.aspx?Item=N82E16813157758&cm_re=am4-_-13-157-758-_-Product

MSI X370 GAMING PRO CARBON, $179 - https://www.amazon.com/MSI-X370-GAMING-PRO-CARBON/dp/B06WGS4FJL/ref=sr_1_6?s=pc&ie=UTF8&qid=1488707250&sr=1-6&keywords=am4


ASUS Prime X370-Pro, $170 - https://www.amazon.com/Prime-X370-Pro-Ryzen-Motherboard-Lighting/dp/B06WD4N297/ref=sr_1_5?s=pc&ie=UTF8&qid=1488707250&sr=1-5&keywords=am4

By the way, R7 1700 is 500h/s in XMR, https://forums.servethehome.com/index.php?threads/monero-mining-performance.12116/

Does anyone has these mobos and can test them for mining?

I'm tempted to go with the cheapest ryzen cpu when Vega launches (Ideally 4C4T, but it might not launch before vega). It brings some XMR mining ability, the ability to cpu mine new coins and handle high cpu load unoptimized miners (like in the early days of zcash) and imo, slower depreciation and easier resell of the cpu and mobo. It will be good to know if 6 gpus work.