Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux)

[cryptonitro]

Hi, I have a problem, I have a rig with 5 GPU RX580 8GB - W10 - Claymore 15. With ethereum I have no errors and they are 158MHS total. But with ETC I get error OpenCL - 38 - cannot write buffer for dag. What's going on?
Thank you!

same here with rx480 8gb without reasons ...
its ok for ETH but not for ETC

[1715616703]

1715616703

[1715616703]

1715616703

[1715616703]

1715616703

[1715616703]

1715616703

[1715616703]

1715616703

[adaseb]

Hello! Since yesterday my ether rigg (6x AMD RX 580 8gb) has gone down from 174mhz (29mhz per gpu) to 60mhz (10mhz per gpu) .... does anyone know why it may be?   

Are you using Windows 10? Then most likely it was some forced Windows update which included new drivers for your AMD GPUs. I ran into this problem a few times in the past. It would either not hash at all because all the overclocking settings were reset OR it would hash at a slow speed because compute mode was disabled by default.

It was a pain in the butt to disable but somehow with some reg hack I was able to prevent any updates from happening again. Search the web and there is a guide on how to disable Windows 10 updates. Its pretty indepth and you need to block access to certain DNS hosts.

[dzap]

using Claymore v15 under Linux, with 8GB cards, also DAG does not fit anymore while mining ETC...

[xandry]

Hi, I have a problem, I have a rig with 5 GPU RX580 8GB - W10 - Claymore 15. With ethereum I have no errors and they are 158MHS total. But with ETC I get error OpenCL - 38 - cannot write buffer for dag. What's going on?
Thank you!

Do you have environment variables from README in your bat file? I mean these lines:

Code:

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100

I have found that it help with this error.

[RAKOT]

Hello! Since yesterday my ether rigg (6x AMD RX 580 8gb) has gone down from 174mhz (29mhz per gpu) to 60mhz (10mhz per gpu) .... does anyone know why it may be?   

Are you using Windows 10? Then most likely it was some forced Windows update which included new drivers for your AMD GPUs. I ran into this problem a few times in the past. It would either not hash at all because all the overclocking settings were reset OR it would hash at a slow speed because compute mode was disabled by default.

It was a pain in the butt to disable but somehow with some reg hack I was able to prevent any updates from happening again. Search the web and there is a guide on how to disable Windows 10 updates. Its pretty indepth and you need to block access to certain DNS hosts.

You should look at WUB ( Windows Update Blocker) - please don t take it as AD. Ive myself lost alot of nerv trying to stop this mindfk.... feathure to shut up. Schedules cripts , disabling servicers ,  LTSB ver. and etc and etc.
Then i found this tool. You could enable WU any time to install update like .NET framework if needed. Then shut the f. WU again in one click.

[john1010]

Hi, I have a problem, I have a rig with 5 GPU RX580 8GB - W10 - Claymore 15. With ethereum I have no errors and they are 158MHS total. But with ETC I get error OpenCL - 38 - cannot write buffer for dag. What's going on?
Thank you!

I have the same problem when switching to etc or vice versa, I don't even think where the problem come from, If that problem shows on my miner,  I pull out some of my gpu's to riser, then shutoff the psu then psuh a long press with the miner's power button, after that I plug again my gpu's then turn on pc, then the problem resolve, It looks funny and estrange, But I lost all of my method to deal this problem.

[vapourminer]

Are you using Windows 10? Then most likely it was some forced Windows update which included new drivers for your AMD GPUs. I ran into this problem a few times in the past. It would either not hash at all because all the overclocking settings were reset OR it would hash at a slow speed because compute mode was disabled by default.

It was a pain in the butt to disable but somehow with some reg hack I was able to prevent any updates from happening again. Search the web and there is a guide on how to disable Windows 10 updates. Its pretty indepth and you need to block access to certain DNS hosts.

there are (or were) a couple services that i disabled in win10 1709 and that machine has not updated since. pretty sure i didnt do any dns stuff (for instance my hosts file is still stock). but again that version 1709.

that was from a guide i found online a couple years ago. so i have no idea where i got it or if that method (disabling various services only) still works.

[adaseb]

Anyone can explain why I cannot mine using Claymore's Miner anymore?

Up to yesterday there was no problem with mining on my two rigs with 2 and 3 Vega 64. Both on Windows 10. Different builds ( update disabled, drivers update disabled). On one rig I had to restart the miner but after the restart that message showed up:

GPU0 - not enough GPU memory to place DAG, you cannot mine this coin with this GPU
GPU2 - not enough GPU memory to place DAG, you cannot mine this coin with this GPU
GPU1 - not enough GPU memory to place DAG, you cannot mine this coin with this GPU
GPU0 - OpenCL error -61 - cannot allocate big buffer for DAG. Check readme.txt for possible solutions.
GPU2 - OpenCL error -61 - cannot allocate big buffer for DAG. Check readme.txt for possible solutions.
GPU1 - OpenCL error -61 - cannot allocate big buffer for DAG. Check readme.txt for possible solutions.
GPU2, OpenCL error -38 - cannot write buffer for DAG
GPU1, OpenCL error -38 - cannot write buffer for DAG
GPU0, OpenCL error -38 - cannot write buffer for DAG'

In the same time on the second rig Claymore's Miner was mining without a problem. So I left that one and started to look for the problem on the first one.
After an hour of try and errors I moved to another miner (SRBminer) and there was no problem with mining.
On the second rig Claymore's Miner was still mining fine. So for the test purposes I restart this one to and it throw me the same error as on the first rig.

On both rigs I have 8GB or RAM and 64GB of swap file on SSD drive.
Claymore's Miner is started with administration rights and with:
GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100

On both rigs SRBminer is running just fine.

You say you have 8GB of RAM which is system memory but how much GDDR do all your GPUs have? Because the DAG is growing and lately if you got any 4GB GPUs you can't mine with those anymore.

Your only solution is to put an 8GB GPU in the main PCIe 16x slot and leave 4GB in the other slots. You can also use a different OS like Ubuntu which extends the life of 4GB GPUs but its a pain initially to set up. Since undervolting and underclock is not as easy as Windows with afterburner.

Then of course the other solution is just to upgrade to all 8GB GPUs. So in 2 months when all the 4GB ASICS and GPUs stop mining the hashrate will drop and it will be very profitable with any >6GB GPUS or higher.

[bluspirit]

Are you using Windows 10? Then most likely it was some forced Windows update which included new drivers for your AMD GPUs. I ran into this problem a few times in the past. It would either not hash at all because all the overclocking settings were reset OR it would hash at a slow speed because compute mode was disabled by default.

It was a pain in the butt to disable but somehow with some reg hack I was able to prevent any updates from happening again. Search the web and there is a guide on how to disable Windows 10 updates. Its pretty indepth and you need to block access to certain DNS hosts.

there are (or were) a couple services that i disabled in win10 1709 and that machine has not updated since. pretty sure i didnt do any dns stuff (for instance my hosts file is still stock). but again that version 1709.

that was from a guide i found online a couple years ago. so i have no idea where i got it or if that method (disabling various services only) still works.

I'm still on version 1709 too.
Here is that guide:

1) How to Disable Drivers Update in Windows 10:
Windows key+R > Type gpedit.msc and hit Enter > Navigate to: Computer Configuration > Administrative Templates > Windows Components > Windows Update.
Double-click "Do not include drivers with Windows Update" and set it to Enabled.

2) How to Disable Windows 10 Update:
Computer Configuration > Administrative Templates > Windows Components > Windows Update.
Double-click "Configure Automatic Updates" and set it to Disabled.

[dzap]

ETC stopped mining for me as well on SMOS, ETH works fine. RX580 8GB cards... heck will need to move to another miner as well

[vapourminer]

there are (or were) a couple services that i disabled in win10 1709 and that machine has not updated since. pretty sure i didnt do any dns stuff (for instance my hosts file is still stock). but again that version 1709.

that was from a guide i found online a couple years ago. so i have no idea where i got it or if that method (disabling various services only) still works.

I'm still on version 1709 too.
Here is that guide:

1) How to Disable Drivers Update in Windows 10:
Windows key+R > Type gpedit.msc and hit Enter > Navigate to: Computer Configuration > Administrative Templates > Windows Components > Windows Update.
Double-click "Do not include drivers with Windows Update" and set it to Enabled.

2) How to Disable Windows 10 Update:
Computer Configuration > Administrative Templates > Windows Components > Windows Update.
Double-click "Configure Automatic Updates" and set it to Disabled.

that sounds about right. the only disadvantage is if you add oddball hardware you need to install the drivers manually. which isnt a big deal on a rig that doesnt see hardware changes for long periods of time.  

[jpmou]

Hi, I have a problem, I have a rig with 5 GPU RX580 8GB - W10 - Claymore 15. With ethereum I have no errors and they are 158MHS total. But with ETC I get error OpenCL - 38 - cannot write buffer for dag. What's going on?
Thank you!

Do you have environment variables from README in your bat file? I mean these lines:

Code:

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100

I have found that it help with this error.

thks, I have that in my .bat. Still it doesn't work

[yoonline]

teamredminer stop working too for 4gb

[john1010]

Are you using Windows 10? Then most likely it was some forced Windows update which included new drivers for your AMD GPUs. I ran into this problem a few times in the past. It would either not hash at all because all the overclocking settings were reset OR it would hash at a slow speed because compute mode was disabled by default.

It was a pain in the butt to disable but somehow with some reg hack I was able to prevent any updates from happening again. Search the web and there is a guide on how to disable Windows 10 updates. Its pretty indepth and you need to block access to certain DNS hosts.

there are (or were) a couple services that i disabled in win10 1709 and that machine has not updated since. pretty sure i didnt do any dns stuff (for instance my hosts file is still stock). but again that version 1709.

that was from a guide i found online a couple years ago. so i have no idea where i got it or if that method (disabling various services only) still works.

I'm still on version 1709 too.
Here is that guide:

1) How to Disable Drivers Update in Windows 10:
Windows key+R > Type gpedit.msc and hit Enter > Navigate to: Computer Configuration > Administrative Templates > Windows Components > Windows Update.
Double-click "Do not include drivers with Windows Update" and set it to Enabled.

2) How to Disable Windows 10 Update:
Computer Configuration > Administrative Templates > Windows Components > Windows Update.
Double-click "Configure Automatic Updates" and set it to Disabled.

One of my rig updated to windows version 2004 and it seems that there is no changes in all my cards and also to mining speed, I have sapphire nitro+ rx 570 8gb and also the radeon software automatically updated to radeon 20.9.2

[DrX]

ETC stopped mining for me as well on SMOS, ETH works fine. RX580 8GB cards... heck will need to move to another miner as well

I have already file an issue on Claymore's GitHub. I hope it will be an update soon.
I can confirm that ETH is mining ok.

I dont think Claymore has GitHub, most likely its fake.

And only download the miner from threads first page.

https://bitcointalk.org/index.php?topic=1433925.0

[michelem]

Use PhoenixMiner.

Or he can switch to Linux.

I'm on Linux yet and I tried also PhoenixMiner without luck, I think these cards reached their end of life (for ethash at least).

I read about downgrade the Nvidia driver but don't know if it could work and for how long.

[shbour]

Hello, pls help me, when i run Claymore, get error - not enough virtual memory, how can I increase it?

[superquaid]

yesterday, the hashrate dropped to 10 mh/s on all gpus, I understand it's time to update the drivers? I haven't updated it in months

[ivcelmik]

New project EthereumPill release

More info: https://github.com/EthereumPill/PillForETH/releases/tag/1.0.0

Hashrate:
1080ti - 58 mh/s
2060 - 59 mh/s
2070 - 60-62 mh/s
2080 - 63-67 mh/s
2080ti - 68-71 mh/s
3070 - 76-78 mh/s
3080 - 97-99 mh/s
3090 - 115-127 mh/s

Did anybody tested this already? Seems sus

Do not use that they trying to access your ledger live! it should be removed from Git

[bluspirit]

that sounds about right. the only disadvantage is if you add oddball hardware you need to install the drivers manually. which isnt a big deal on a rig that doesnt see hardware changes for long periods of time.  

Thx, totally agree.

One of my rig updated to windows version 2004 and it seems that there is no changes in all my cards and also to mining speed, I have sapphire nitro+ rx 570 8gb and also the radeon software automatically updated to radeon 20.9.2

I see automatic updates as a lottery for a mining rig: everything could work as before, better or worse.
Therefore I prefer to block all automatic updates and manually install / test the version of video drivers I prefer, having the possibility to uninstall the previous drivers with DDU.
I can always revert back the standard configuration to re-enable automatic updates if I need them.
I just hope that guide still works for latest Win 10 releases.