Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux)

[jenia1]

Hey Guys,

i have a 6 x RX 480 8GB Nitro Rig with modded bios  - 1700 strap copied to 2000, i use 16.11.4 drivers and i am getting 260H/s per card. shouldnt it be higher?

No I have same card and with default clock i have 260-265sol

GTX 1060 6GB faster card than RX 480 8Gb

GTX 1060 6 GB about 300sol
Rx 480 8GB about 260sol

but shouldn't the bios mod have somekinda effect on the speed? i know it does when mining ETH, so why not here?

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[batko]

minor improvment with mod bios max 10sol

[jenia1]

minor improvment with mod bios max 10sol

can you suggest or direct me to other ways of increasing sols? and saying please by how much they will increase?

[batko]

minor improvment with mod bios max 10sol

can you suggest or direct me to other ways of increasing sols? and saying please by how much they will increase?

asking @claymore 

[jenia1]

lol ok i hoped there might be some other tricks like fine tuning and such

[Trimegistus]

ETH/ZEC/XMR profitability has been steadily dropping... soon we'll need a new coin to mine.

[cracker666]

use optminer for tonga

R9 380 about 220sol,
claymore we need faster miner for R9 380

would love claymore to beat optiminer on the tonga cards

[CODISMYLIFE]

guys can you tell me about hashrate of rx 470 4gb with bios mode in 11.1 version?

[Golku]

guys can you tell me about hashrate of rx 470 4gb with bios mode in 11.1 version?

it changes its something like 245-250

[jelin1984]

any zcash pool that work
expect fly pool??/


nanopool does not paid anything to me

[m00nspeell]

any zcash pool that work
expect fly pool??/


nanopool does not paid anything to me

Also dwarfpool have problem with payments. Problem with shares also...10 hours without a share!

[semajjames]

any zcash pool that work
expect fly pool??/


nanopool does not paid anything to me

Also dwarfpool have problem with payments. Problem with shares also...10 hours without a share!

zcash.miningpoolhub.com these guys charge but are very reliable

[red_x]

Hi,

I have a problem if I try to connect more than 6 GPUs to my AsRock H81 Pro BTC v2.0 mobo. I bought an extender riser (PCI-E x1 -> 3*PCI-E x1) and I use normal USB3 PCI-E x1->x16 risers. Everything's  fine until I connect the 7th card. I can connect the first 6 card any way I want it but after the 7th card connected I got blank screen when I turn on the rig.

How do I make it work with 7 or 8 cards?

are you using Windows 7 perhaps? I have an 8 Card system and the only way I got them to work was with Windows 10 and Ubuntu. But it can also be the fact that your MB don't support more than 6 PCIE cards. Have you tried connecting 5 cards and one dual card? such as 7990, 295x ? I have two 7990 and 4 other cards in my 8 card system. Not using the PCI Switch.

I use Win10, but I can't get to boot the OS. I turn on the rig and nothing happens. I don't have dual cards, I use RX470 GPUs.

Maybe AsRock H81 Pro BTC v2.0 mobo doesn't support more than 6 PCI-E devices? I tried to disable integrated audio, serial ports, etc. in the bios, then connected the 7th card but also didn't work.

I don't want to buy an expensive server/workstation mobo. Is there any chance to use 7 or 8 PCI-E devices? I searched for modded bios for this mobo but didn't find anything. Or it's the limit of the H81 chipset, not the bios?

Which PCIE slot are you connecting your 1x3 card into?

It is my understanding that each GPU requires a minimum of 1 PCIE lane/pipeline to transmit data.  That means you would have to plug the 1x3 card into a slot with at least 3 lanes/pipelines (in the real world that means a 4x, 8x, or 16x slot).  The H81 Pro BTC has a single 16x slot and five 1x slots.  You could only ever run the 1x3 card on the 16x slot.

If I'm wrong on this I am open to correction.  I've actually been wanting to play around with the exact setup you describe.

I used the 1->3 extender riser in the 6th PCI-E slot (which is an x1 slot) and the 3 cards worked fine on that extender. So I think it is a limitation of bios/chipset, or not enough IRQ available?

I have a meeting I need to run to but this thread I found may have some useful information in it.  I will keep digging when I get back as well.

https://forum.ethereum.org/discussion/5195/riser-1-to-3-pci-e-1x

Edit 1:

After reading through the above thread and taking a look at Intel's specs on the h81 and z87 it would appear that the max PCIE lanes through the h81 chipset is 6, whereas the z87 chipset can handle 8.  The 1x PCIE slots run through the chipset, but the 16x slot runs straight to the CPU.  

I would think that you could run 6 GPUs max through the chipset while running the remainder of your GPUs through the 16x slot using the CPUs remaining availability. In this scenario you could only ever use a 1x2 card in one of your 1x slots.  If you moved the 1x3 card to the 16x slot then you could run 5 GPU through the chipset and 3 (or more depending on CPU, driver, OS) through the 16x PCIE straight to the CPU.

But that doesn't seem to be your experience.  If you have the 1x3 card in the last 1x PCIE slot then the 7th card you plug in should be the 6th card running through the chipset.  Theoretically you should be able to run 7 cards with your setup, but not 8.  And you can't.

So I'm wondering, perhaps we have a bottleneck somewhere else?  Out of curiosity, what CPU are you using?

http://ark.intel.com/products/75013/Intel-Z87-Chipset

https://ark.intel.com/products/75016/Intel-H81-Chipset

Thank you for your research. I use G1840: http://ark.intel.com/products/80800/Intel-Celeron-Processor-G1840-2M-Cache-2_80-GHz

@fredeq: also thanks.

I also gave up trying to use the splitter for a 6+ gpu rig

First I used Asus P8P67 Workstation mobo that has 7 pcie slots but when I plugged the 7th card it even didn't appear on device manager on win10, with the splitter is did the same.
I even swapped the g860 for a xeon with 20 lanes and same happened.

Then with Asus p8z77 ws, the same happens

with a p5q pro it didn't even boot with the splitter and 7 gpus

I won't buy more recent hardware for mining unless it gets possible to have more than 6 gpu in one system

So for now i'm using it for what is intended for - a splitter/extension of my home pc

In the main pc case I have a saphire rx480 8g running cool&quiet and outside in a open frame diy case, one asus 390 and two 280x running through a 3m usb 3 cable to the splitter.

[zigun]

Is it possible to successfully mine with 470 and 280x in one rig ? Which version of driver will be the best choice?

[farsky]

Is it possible to successfully mine with 470 and 280x in one rig ? Which version of driver will be the best choice?

I have all the good work on 16.11.5 (but i had a 280x and 480), win7 and win10

[ciombat]

is there some modded bios for 390 improving mining? 

[Assaro]

Just wanted to share my experience after 1 month being on dwarf.. what you thing?



Edit: there was no system/gpu failures and you can count +/-0,10% rejected share in total. Also calculate the claymore speed improvement from 3400 sol to 3780 sols.....

[mr.winn]

Any one know why I'm getting a negative hashrate on GPU 1 ??

It does not happens about 60% of the time.

Im running my internal graphics card, a sapphire r7 350 and an r9 270X duel X.

I dont know which card is which GPU#.

https://drive.google.com/file/d/0B3KzXDOJGLc2NElqLVZwMGhfMTg/view?usp=sharing

[QuintLeo]

any zcash pool that work
expect fly pool??/

 Why not flypool?

 It's worked well for me except for a couple of issues very early on DUE TO WALLET BROKEN ISSUES that the pool has no control over.


 

Is it possible to successfully mine with 470 and 280x in one rig ? Which version of driver will be the best choice?

 

 470 and 280x would probably work best with 16.10.1 (or other 16.10 or 16.9 versions).

[jackcantrell]

I like the new Claymore 11.1 linux version. Getting over 2500 S/sec on my 6-rig R9 Fury rig!

https://i.imgur.com/nj2jjA7.png

That's a picture of the command line output of the Claymore application. This is stock R9 Fury - the one with 3 fans on it.