Topic: [ mining os ] nvoc - page 271. (Read 418549 times)

Hm, Do you mean that one PSU powers CPU/Boards/ additional PCI power molexes and the other one for risers and cards? I've tried again today and been on for 3 hours on 11 cards, seems that 12th one causing some problems all the time. This seems like a new problem now as soon as I install the 12th card the drivers crash, tried different risers and their positions but still no result, the card is okay though , not sure what the cause of that is...

I personally don't really need that relay connector since the server PSU turns itself on as soon as the power is on anyway so I don't have a problem of turning them both on at the same time.

I am trying to find somebody near my location to solder 2 additional Molexes to my server PSU to try and power the board and cards of single PSU instead of using 2 but I am thinking it's not gonna be easy to find a reliable guy for this job...

I have a dual PSU rig with 9 cards, Board/CPU/all 9 risers/3 cards on one PSU, 6 cards on the other PSU, works well.
my PSU connector looks like this one:
http://www.ebay.com/itm/Desktop-ATX-24Pin-Dual-PSU-Power-Supply-Sync-Starter-Extender-Cable-Connector-/302285871050?epid=22006157212&hash=item4661a457ca:g:VxgAAOSwj25Y8cz6

Yes those relays are not very stable, out of 3 of them only one seems to work reliably for me.
I can't speak to the actual causes of why it crashes since there are many variables (PSU, motherboard/bios/controllers, GPU manufacturers etc) but after battling with this issue for a few weeks I'm running stable with only one dual PSU system.  
That system has all the cards on one PSU and the CPU/Board/PCI-bus molexes on the other PSU.

I see these codes in 1bash:

Does that mean I can setup a rig with all of p106-100 cards and connect monitor to the motherboard directly?

IAmNotAJeep Thought that quoting everything gonna create a mess

Have you been using 2 ATX PSUs or one was server PSU like in my set up? I don't have quick access to new PSUs so swapping them gonna take about 5 days to one week , it's very strange how this error seems to appear in completely unpredictable timings. I also worked out strange thing that when I disconnect the PSUs from each other it seems more stable than with the rele connector synchronizing them , when they are connected it takes a couple of minutes to freeze and otherwise it can work for a couple of hours even with more then 8 cards( using 11 atm seems to be impossible for some reason to plug in all 12 without something crashing).

I wanted to figure out how to check the GPU memory vendor(samsung, hynix or micron) on linux, I found this post:

https://devtalk.nvidia.com/default/topic/1018512/linux/memory-brand-type/

it says that it's impossible to do it on linux, is it true?

I experienced something similar when I was building 2psu rigs, except in my case it would be the same GPUs causing the problems, if I took all the problematic cards out and built a smaller rig (1PSU) just out of the "unstable" GPUs, they gave no issues and were stable for days. My conclusion was that the problem were 2 psu setups. In the end I managed to get one of the 2 double PSU rigs stable with 11 cards, the other I simply swapped for one 1200W psu and problems went away, all the other 1 psu rigs that came into being with what I thought were defective cards, are stable and "set it and forget it".

IF YOU HAVE AN AMD CPU, USE IT--

I don't have either board that you are looking at.  I'd go for saving money with the AMD board, because you already have a CPU that is enough for mining.  

If you want to mine, buy a mining board.  The BioStar and ASRock boards designed for mining will give you less trouble with 6+ GPU rigs.  Remember that you will need a huge PSU for 6 GPU cards, unless you are mining on GTX 750ti or RX 460 GPUs.

You seem to know about some of the BIOS settings that are required.  That varies per motherboard, and after the nightmare I had trying to load an early version of Ubuntu 14.04 on the 990FXA, I started buying the less expensive H81 boards with 4 PCIe slots.  A sturdy 4 card rig was easier to manage; the motherboard cost $50 plus a $40 Celeron.

--scryptr

I'm trying to mine ZCOIN on Mining Pool Hub. I keep getting "reject reason: low difficulty share of ________". Is there any way to fix this?

Thanks so much!

Hi!
Since Intel H110 chipset is a Skylake 
would it work more stable with Skylake CPU (like Intel Core i3-6100 for example)?

Another thing which confused me - Intel on their page stated that H110 supports Max 6 PCIe lines and doesn't support overcloking (CPU?!)
https://ark.intel.com/products/90590/Intel-H110-Chipset

Can you please share your thoughts on this

While mining SIGT ccminer (https://github.com/krnlx/ccminer-skunk-krnlx) exits every 30minutes or so. Because script runs in screen I can't see the real error. I added -S flag to ccminer to log to syslog and now I see weird thing. Every time ccminer is restarting I see following lines in syslog right at that time. Anyone has a clues what are they and why do they affect ccminer? Thanks.

first off, THANK YOU SO MUCH for this!!!!
my ONLY issue, im running the MSI Z170A GAMING M5, and i have 8 cards connected. (ive tested it on a machine that had 5 cards, and then i added the 6th and it picked up) i took it to our server rack that each machine has 8 cards running and its only picking up 7. is there a quick command fix i can do for this? Or should i start from a fresh copy on a thumb drive?

any help would be greatly apprecaited. If i can get all 8 rigs working with 8 cards id absolutely be in debt to you.


Thanks again!

denellum

Thanks for your answer scryptr! So, do you think the ASrock Z270 Killer Sli would work with a BIOS update? I couldn't find many reports of mining rigs with this board, but found one or two (and also a few complaining it didn't work). Its BIOS has the "TOLUD" setting, which I think is similar to the "Above 4G Decoding" setting necessary for 3+ or 4+ GPUs. The Asus Prime Z270-A I know is a sure shot, but much more expensive here...

Thanks for your answer.

Unfortunately this is the test rig and I don't have another rig to try each card by itself.  I've been swapping cards in different orders and the error seem to come up with different cards all the time and in different intervals , for example half an hour or just a couple of minutes or even more then 10 hours. Also I've tried different risers at different times, they seem to have no effect on when this error comes up . The PSU's are connected with the board adapter , I've tested each pin connecter on each PSU with a voltmeter and also no problem detected. Sometimes the system freezes straight away and sometimes it takes a couple of hours which as I said doesn't seem to depend on the set up as I've tried around 50 different rotations of risers/videocards. With the same cards and risers it can have different time of error coming up. I also can't use just one server PSU as it doesn't have 2 molexes to connect to the motherboard for additional power supply, only PICO and  8pin for CPU power. I tried to unplug the connector between 2 PSUs and again no affect on when this error comes up.

Could this be software related problem maybe drivers or something else? Also can you advise on the overclocking of these cards as no methods I could find( trying to attach "fake" monitor to each GPU using console and treaking the system) would make any difference on the OC ?

PS. THe PSUs are connected to one power plug adapter which turns them on simultaneously anyway so this shouldn't be any problems in synchronization as the server PSU turns on with ATX at the same time through the WIFI plug I have.

UPD. Been running for about 8-9 hours with 7 cards and still froze after that time... Not really sure what went wrong again as I wasn't present at that time but I suspect it was the same error again.

THE "Z" BOARDS NEED UPDATED BIOS--

They can be tricky for 5+ GPUs.  I don't have one.  I do have several GigaByte 990FXA boards, they need updated BIOS and can be tricky.  Try ASRock H81 Pro BTC v2.0 for a mining board.  They have Intel 1150 CPU sockets.

The Gigabyte 990FXA boards were very difficult with Ubuntu 14.04.1, but loaded Win 7 or 8 with no problem.  Later versions of Ubuntu (14.04.4+) were able to load.  They will work with Sempron CPUs or better, and can unlock an AMD CPU for more cores.  One of my Semprons unlocked to an AMD Athlon XII, the other did not.  I just upgraded that board to an AMD 4350, it mines 24/7 on Win 7 x64 and 5 GTX 960 GPUs.  Getting the 6th GPU to work was too much trouble.  My other GB 990 FXA board has 6 GPUs, Win 7 x64, nVidia 750ti GPUs and an AMD 4350 CPU.  I will again try 6 GPUs on my GTX 960 rig when I get my first GTX 1060.

I don't know if the "6th GPU" problem was heat or lack of CPU power.  The Sempron 145 is single core, it worked in 2013-2014 for early mining algorithms.  Newer algorithms may need more CPU power.  

--scryptr

Does anybody successfully setup a rig with 5+ GPUs (or know someone who has) with the following mobos:

ASRock ATX Z270 Killer SLI/BR (LGA 1151)

Gigabyte GA-990FX-GAMING (AMD AM3+)

They have a good price where I live (the Gigabyte AM3+ is because I have an old Phenom II CPU around, so would save some more money).

Thanks

Hi guys now i got this error message mining sigt

"Warning: persistence mode is disabled on this device. This settings will go back to default as soon as driver unloads (e.g. last application like nvidia-smi or cuda ..."

How can i fix that?

And can you share ur experience mining SIGT @ current block and difficulty, Im mining on supernova 120mhs for SIGT for 20hrs (estimate) i got only 57 SIGT and i think this is bad. anyone can help me or advise a better pool?

Thanks again so much

God Bless

No reject shares or other problems ?

This is how it worked for me, increase is quite nice plus 3-4 MH/s vs palgin mod, getting 29-30 MH/s with 1070.
To avoid error I needed to update one openssl file to past version:

Now test it and if it works, stop miner (pkill -e miner) and copy over and wait for miner to restart and Voilà!

If it works and you wish to thank me, go and check out my project https://cryptopanic.com/

Would be great if you could post a how-to here!