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

[Xapodat]

Hello
Can i mine here on
MSI GTX 1060 GAMING X 6G

TY

No. You can not mine using an NVIDIA gpu with claymore zcash miner. This miner is for AMD cards only.

That is right. Only the ETH miner for both AMD and nVidia.

[Joemid]

How do i represent core voltaje -60 in claymore line commands? I want to undervolt using the claymore bat.

Thanks

[Tom17]

I'm having some trouble here. I have a rig that I set up back in 2013/2014 and used to mine it.

Back then, it was like so:
Gigabyte 1155 mobo with cheap Celeron and 4GB ram.
Booting Ubuntu 12.04 on a USB drive (Surprisingly this worked well)
Some version of the FGLRX drivers
Multiple 7950 cards

So I dusted it off recently to mine ZEC, installed Claymore on it and it worked straight away, but only saw one GPU at a time. Linux could see and use multiple GPU.

I decided it was time to just rebuild the OS. So I got a new USB stick, installed Ubuntu 16.04 server following this guide: https://blockoperations.com/build-6-gpu-zcash-headless-mining-rig-ubuntu-16-04-using-claymore/
It's using the latest AMDGPU-PRO driver (17.10, the link did not show the 16.50 drivers any more).

Right now, I am having zero luck. I have a single Sapphire 7950 in there, and the hash rate always shows as 0. No overclocking, no PCIx risers, everything stock.

I tried using the older drivers (16.50) as I eventually found them, but still no luck. In fact it was worse as it now saw the cards as  “Hainan” instead of "Tahiti".

I have since read that maybe I should be using Ubuntu 14.04. But I am not sure where to head right now. I have wasted a whole day on this so far.

Is there a currently recommended way to get this all working in Linux with a 7950 card?

[Muddybit]

noob question: a few weeks back my 950H/s setup was getting about 0.1ZEC about every 3 hours on flypool.  These days I am getting only 0.1ZEC every 5-6 hours.  What would cause this?  Increased difficulty?

[Vann]

noob question: a few weeks back my 950H/s setup was getting about 0.1ZEC about every 3 hours on flypool.  These days I am getting only 0.1ZEC every 5-6 hours.  What would cause this?  Increased difficulty?

Yes, the difficulty going up means it takes longer for the pool to find blocks. Less blocks found means less frequent payouts. You aren't getting 0.1 ZEC every 6 hours or even every 24 hours with 950H. With that hashrate you can expect about half that in 24 hours.

http://www.coinwarz.com/calculators/zcash-mining-calculator/?h=950.00&p=600.00&pc=0.10&pf=0.00&d=1797696.37812936&r=10.00020000&er=0.10538829&btcer=2567.00460000&hc=0.00

[Crypto Coffee]

Hey !

Question on hashrate and intensity for ZEC ?

Can it be that when i increase the intensity the hashrate is going down BUT the shares are more and better ? So the hashrate doesn´t matter too much? or will always get the highest sol/s the best shares ?

Thanks 

[QuintLeo]

For the 7950, you might be better off going with UBuntu 14.04 and using the fglrx 15.12 (they are in one of the Ubunty repositories with "-302" as part of the name) drivers.

 I'm not sure if the "PRO" stuff supports older cards, though in theory it SHOULD work with anything GCN.


 Muddybit - it's called "lots of folks building new rigs adding to the hashrate raising the difficulty because of the crazy-high ZEC price rise the last 2 months or so" - so yes, you're right. 9-)

[Tom17]

For the 7950, you might be better off going with UBuntu 14.04 and using the fglrx 15.12 (they are in one of the Ubunty repositories with "-302" as part of the name) drivers.

 I'm not sure if the "PRO" stuff supports older cards, though in theory it SHOULD work with anything GCN.

I actually went down that path too since making that post. I did away with the USB OS disk and found a regular disk. Tried a fresh UB 14.04 which was a fail, then tried UB 14.04 and installing the catalyst drivers failed. But I downloaded them instead of looking in the repo... I should try again with the repo versions I guess. Would using UB 14.04.5, would that have been a problem?

This was my error:

Code:

$cat /usr/share/ati/fglrx-install.log

NOTE: If your system has logged the missing packages required for installation, install them in the order as per the log file to resolve package-dependency issu
es.
Supported adapter detected.
Check if system has the tools required for installation.
Uninstalling any previously installed drivers.

Creating symlink /var/lib/dkms/fglrx/15.302/source ->
                 /usr/src/fglrx-15.302

DKMS: add completed.

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area....
cd /var/lib/dkms/fglrx/15.302/build; sh make.sh --nohints --uname_r=4.4.0-78-generic --norootcheck.....(bad exit status: 1)
[Error] Kernel Module : Failed to build fglrx-15.302 with DKMS
[Error] Kernel Module : Removing fglrx-15.302 from DKMS

------------------------------
Deleting module version: 15.302
completely from the DKMS tree.
------------------------------

In the end I threw Win10 on it and it just worked... (Except that the second card went to full fan speed almost straight away, will look into that).

I guess I need to try UB 14.0.5 again and try installing from the repo...

[Vann]

The problem with AMD GCN  1 and GCN 2 series cards on Linux is the newest AMDGPU PRO Linux drivers are only compatible with GCN 3 and up series cards.
 
https://wiki.archlinux.org/index.php/Xorg#AMD

On Windows the Catalyst ReLive drivers support all GCN and up cards. The best solution I found to get GCN 1 & 2 cards mining in Linux is using the Catalyst 15.9 or 15.12 drivers, which are the last drivers before they moved to the AMDGPU PRO drivers and they actually work better for the older cards than the current Windows driver does.

The other problem is the Catalyst 15.9 or 15.12 drivers don't support Xorg 1.18, so you have to use an older distro. I got it working on Arch Linux using the Catalyst Total package in the AUR after setting the Xorg 1.17 repo in the package manager configuration file as instructed in the Arch Wiki:

https://wiki.archlinux.org/index.php/AMD_Catalyst

For a dedicated mining rig, you could also use the smOS R series distro, which is based on Linux.

https://simplemining.net/

[Tom17]

This makes sense.. The info was probably in this thread, but 700+ pages

So if I plan to get any newer cards, I can't really mix either. Maybe I should offload these 950's and get something newer... Sounds like it will be much simpler lol.

Still having problems even in Windows. When I put in a 7950 and a 280x (Almost the same, both Tahiti etc), then the 280x always goes straight to full fan speed, but it's fine when it's in on its own.

I just did some card shuffling so I now have 2 Sapphire 7950's in the same box and the 280x is in my son's machine... Let's see.

I'm gathering I may be better off sticking to Windows then while I have these older cards...

[Tom17]

Still one card gets hot and ramps up the fan speed. I'll try putting it together with my risers so they have more space to cool. I imagined cramped spacing would take longer to show up in heat/fan speed than a couple of minutes....

Thanks for your post. It makes a lot of sense and has put my mind at ease, even though I wasted a day on this lol.

[th00ber]

Still in love with my R9 Fury.
430H/s for 130W
I was thinking to change them... But I can't find better now

[Tom17]

I like the sound of that! But alas, it seems the bandwagon has started up again and I jumped on at the wrong time (again). All the good deals on kijiji are being snapped up...

[Tom17]

OK, card spacing makes a huge difference, but I guess you all know that. Finally have my headless miner (vnc, ugh) running with 2 x 7950's. Time to let it run as a POC to get wival approval to get more efficient cards

Thanks for the help!

[dragonmike]

Could it be that tight memory strap mods used for ETH mining are not working for ZCash?
Quickly tried to use Claymore Zcash miner on my RX570 mining farm for the lulz... and everything crashed within seconds. What's the catch? Or do I just have to lower intensity?

EDIT: same thing happens if I try Optiminer. After a few seconds of mining, miner freezes, PC reboots.

[toti]

I have 3 sapphire RX 580 8gb cards under windows 10 using AMD driver 17.4.4 and after several ours it falls down. I have tried other version of driver but this one is the more stable i found. The other once fall inmediately.
I think we need a new version for this cards.
Some else have the same problems??

[espressodelisi]

I'm having some trouble here. I have a rig that I set up back in 2013/2014 and used to mine it.

Back then, it was like so:
Gigabyte 1155 mobo with cheap Celeron and 4GB ram.
Booting Ubuntu 12.04 on a USB drive (Surprisingly this worked well)
Some version of the FGLRX drivers
Multiple 7950 cards

So I dusted it off recently to mine ZEC, installed Claymore on it and it worked straight away, but only saw one GPU at a time. Linux could see and use multiple GPU.

I decided it was time to just rebuild the OS. So I got a new USB stick, installed Ubuntu 16.04 server following this guide: https://blockoperations.com/build-6-gpu-zcash-headless-mining-rig-ubuntu-16-04-using-claymore/
It's using the latest AMDGPU-PRO driver (17.10, the link did not show the 16.50 drivers any more).

Right now, I am having zero luck. I have a single Sapphire 7950 in there, and the hash rate always shows as 0. No overclocking, no PCIx risers, everything stock.

I tried using the older drivers (16.50) as I eventually found them, but still no luck. In fact it was worse as it now saw the cards as  “Hainan” instead of "Tahiti".

I have since read that maybe I should be using Ubuntu 14.04. But I am not sure where to head right now. I have wasted a whole day on this so far.

Is there a currently recommended way to get this all working in Linux with a 7950 card?

My rig is old too. it's from 2014. 3 cards r9 280x and one r9 270.
I'M using ubuntu server 14.04 as base os. and for installing drivers: I used this guide as reference : http://spacience.blogspot.com.tr/2015/11/gpu-mining-in-ethereum-1404-from-scratch.html
and after that installed atitweak to easy set the clocks from a bash script.

[fredeq]

Still in love with my R9 Fury.
430H/s for 130W
I was thinking to change them... But I can't find better now

Is this backed by watt meter?
Sounds a bit too good for me, more like 1070 values.

[joe50]

this version 12.5 freezes alot, i have tried amd driver 12.11, 16.2 and all freezes despite my overclocking not up to the number when using version 12.4.

another problem i noticed in this 12.5 is that; dev fee mine twice sometimes. i use secure connection, whenever dev fee start (72sec) at first mining, it will say connection time out after 72sec and restart dev fee again another 72sec. despite my internet is connected and working fine.

i notice a slice increase in speed of my hd 7770 (overclocking is now 85h/s (before 70h/s) thanks claymore for this. am now getting 170-180h/s with 2x hd7770

we hope next release will be more stable, this version freezes alot.
anyway, thank you Claymore!!!

[Muddybit]

noob question: a few weeks back my 950H/s setup was getting about 0.1ZEC about every 3 hours on flypool.  These days I am getting only 0.1ZEC every 5-6 hours.  What would cause this?  Increased difficulty?

Yes, the difficulty going up means it takes longer for the pool to find blocks. Less blocks found means less frequent payouts. You aren't getting 0.1 ZEC every 6 hours or even every 24 hours with 950H. With that hashrate you can expect about half that in 24 hours.

http://www.coinwarz.com/calculators/zcash-mining-calculator/?h=950.00&p=600.00&pc=0.10&pf=0.00&d=1797696.37812936&r=10.00020000&er=0.10538829&btcer=2567.00460000&hc=0.00

Thanks.  You are correct re: payouts, it's 0.01ZEC per 5 hours or so.