Really?  Literally all they did was take the code from the other devs and add a premine for themselves.    This is nothing more than a cash grab on their end.    It's even using the same future names from November so people think it's just the same thing.   Bitcoin Gold actually put in more work to their fork than this team did.   The B2X team here basically threw a single picture on a website along with their names and tried to get it onto an exchange.   

Well I initially followed another user's settings (the same one Tytanick keeps posting) for 6 gpus which was basically just update bios, enable 4g, and use integrated graphics.   That works... in general.   My problem doesn't seem to be an issue with booting 6 cards, but one specific card.   I really think that the problem was that I have a bad card.  Whenever that card is plugged in is when I get the errors, and not just when I plug it in as the 6th card.   If I use this card with 2 others, I get those ring errors.   If I don't use it, I can use 5 cards with no errors.    I mean, I can play with some other settings, just saying what I have tested.  

Having issues getting my MSI Z170A Gaming M5 board working with 6 Sapphire RX570 Nitro+ cards.

I've done the following:
PCIE : Auto
4G Decoding : Enabled
Integrated Graphics : IGD

But when it boots it gives a ton of errors on AMDGPU ring tests.    
*ERROR amdgpu : ring 3 test failed
*ERROR amdgpu : ring 4 test failed
*ERROR amdgpu : ring 5 test failed
*ERROR amdgpu : ring 6 test failed
*ERROR amdgpu : ring 7 test failed
*ERROR amdgpu : ring 8 test failed
*ERROR amdgpu : ring 9 test failed
It also gives errors after that from powerplay saying "failed to send message"

After using Auto, Tried with GEN1, then GEN2 and have the same problems.

(Also, the board has 7 slots and I'm using the first 6 from left to right... should I be using different ones for just 6 GPUs?)

Thanks.  

UPDATE : Works with 1 GPU.  Going to diagnose slots / risers / cards to try and find the issue.

UPDATE2 : Went through each GPU and RISER... looks like one GPU is bad and is causing the errors.   Too bad.   Looks like the settings were all correct though.   Kept the post for others.

Really, the only way you can measure a system is "at the wall"  by using a KillAWatt.    There is so much more that goes into it than what you see in a tool like GPU-Z.   Usually you will see 100-150W per card used, depending on the card and how much it is undervolted.  (Remember, it is also the power draw from the riser as well)  So yes, you will likely be at 1000W or so with a 7GPU 470 rig if you did some high end undervolting.

Now as far as your tweaking issues, one thing to keep in mind is that anything you can do in something like afterburner, you can also do on the card's bios itself.   So once you know each card's sweet spot, you can technically work some bios magic and have those as the default settings on the card itself.   Modding a bios is nowhere near as easy as the windows tools... windows is made to be easy!  It can be a pain, and you can also brick your card doing it, but the OS itself is more suited for a stand-alone mining operation.   So in the end, you can get those tasty hashrates you want, even with a mix-and-match setup, if you apply those settings in the bios itself.    I initially was using all of the OC settings in SmOS, but changed them all to bios-mods as I added more rigs.

The bios issue I resolved.   Turns out there was a different 1.4.1 fork that I found that showed both sets of timings for the 500 series.

Quick question.  

I've never modded a bios on SmOS before.  Is it safe to do while mining?  (I normally don't on Standard windows/linux)  

Also, I'm having issues reading my bios backups on these cards (XFX RX 570 - Elpida) in Polaris.   In Polaris 1.4 the memory timings show odd numbers, and in Polaris 1.4.1 they don't show any memory timings at all.   Any thoughts?

I've actually been tinkering with my settings, and have slowly been lowering the powerstage and raising memclocks.   All 6 of my 4GB Asus STRIX 470s say they have Hynix ram, but 5/6 of them are doing great (1970 mem) and one isnt as good (1920 mem).    So more speed and less watts overall.    Will try lowering the powerstage more later, but nice to see they can keep it going at lower powerstages.

Nice results on the 570s.  I'd love to get 30MH.  I'm stuck just under 28 myself.  What did you do to those MSIs to get 30MH? Are they 8GB or 4GB models?  Can't say I can complain about the ASUS cards too much since they were $120 each after rebate at microcenter.

It probably is.    I'm running at powerlevel 5 with 6 gpus, and it is 1000W at the wall for everything.   I could decrease that number if I played with it, but I really didn't take a lot of time to mess with timings once I got it stable on the first day.  I never even tried a lower powerlevel to see if it would work!

What claymore version are you using?

Well not really.   Powerlevel 0 is a serious undervolt.

I'm only confused since On a 1150/1970 my asus 470 is only getting 27.85Mh.   Clocked higher, but then again I'm using the 1500 strap on hynix memory.    (Using claymore 8.1)

But 28Mh at powerlevel 0 is not shitty at all.   Great MH to power ratio.

Heya.   Been using your OS on a 6 GPU rig now for a while and it works great.   I tried to move an older 4 GPU rig over from Win 7 to SMoS, but GPU4 always goes to 0MH within a couple of minutes starting out.    Not sure if it is the motherboard or what, but I don't have any issues with it under windows at all.

My primary rig is was all at 1150/1940 for a while, and I've been slowly increasing memory clocks while testing stability with no problems.   But I'm using a PRO BTC board there.   I really liked your OS, so I tried to switch over my older rig also but had problems.

On my older Rig, I am using a Gigabyte GA-Z68X-UD3H-B3 board, with 4 powered risers and 4 RX470s.    In windows, I run 2 cards at 1100/1920 and 2 at 1100/1950, both with -20mV under Trixx.    In SMoS, it won't set it to 1100 for the core properly, and I tried it on powerstages 5 and 6 but card 4 kept having problems.   I tried it at 1150 too, but no matter what I did, GPU4 kept going to 0MH no matter what I did with it.

All cards in both systems are ASUS STRIX RX 470 4GB cards.