Freezing(super slow) mining Rig (12x RX580)

[gastanan]

Hi everyone,

i have built an radeon mining rig about 4-5 months ago

Setup:

GPU :12x Sapphire Pulse RX580 8gb
MBO: Asus B250 mining expert
RAM : 2x 4GB
CPU : Intel core i3
SSD : corsair 128gb
PSU : 2x Toughpower DPS G 1200W Platinum
OS : Windows 10 Pro

I followed mining.help tutorial for setting up and optimizing mining power ... and after few hours i got all 12 cards mining around 30Mh/s .. it was pretty stable (got BSOD after 24-48hours of nonstop mining ... but scheduling a restart twice a day solved the problem).The problem is, after 3 months of mining the rig stopped working .. just black screen after booting and gpu check screen .. Soo i reinstalled windows and tried to go through the mining.help tutorial once again ... but i the pc was super laggy .... and the setting cards to compute mode in AMD Settings was impossible ... always non responding  ... so i tried a couple of restarts .. fresh reinstall of win again .... and now the PC is freezing for a minute and then working for 5-10 sec ...   When the pc is working normally after one of magical restarts ... when i try to run OverdriveNTool or HWINFO ... it takes 5 min to run ... and every move in OverdriveNTool is super slow .... i tried to set gpus to compute mode with settings registers ... and running overdriveNtool in console mode but after 30 min no success (overdriventool)....

Rig works fine with 2 cards ... 4+ is a problem freezing time is lower .. but it still freezes for like 5-10sec. Event log doesnt show any repeating error ... just like 1-2 errors after launch.
Tried another MBO with 4 cards ... same problem. Tried 4gb ram (both modules) same problem ..
Can someone give me any advice ? How to find out where exactly is the problem ?  

Thanks

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[MATHReX]

I'm pretty sure your cards are BIOS modded. Try this:
1. Reinstall Windows but use 1709 version and block all the updates before-hand and stay at this version.
2. Connect first four cards and install the Blockchain drivers, patch the drivers.
3. Connect rest of the cards and let the system copy the driver files for the other GPUs.
4. Check if the drivers are still patched.
5. Restart system, restore your OverdriveNtool settings and start hashing.

[leonix007]

Rig works fine with 2 cards ... 4+ is a problem freezing time is lower .. but it still freezes for like 5-10sec. Event log doesnt show any repeating error ... just like 1-2 errors after launch.
Tried another MBO with 4 cards ... same problem. Tried 4gb ram (both modules) same problem ..
Can someone give me any advice ? How to find out where exactly is the problem ?  

I was thinking on the 4 cards installed, did you use their own risers same with the faulty setup?

if yes, try to replace your risers

[c0dycZ]

Hi, my hardware is pretty much identical to yours.

MB: ASUS B250 Mining Expert
GPU :10x Sapphire Pulse RX580 OC 4gb
          2x Nvidia GTX 1060 6gb
OS : Windows 10 Home 64Bit, Build 1803

I had the same laggs under Windows 10 like yours and searched months for a solution but finally i get it stable, thx to Andartis at this post:
https://bitcointalk.org/index.php?topic=4353451.msg39179627#msg39179627

This is what ive done:

- Clean drivers with DDU in save-mode if you unable to start Windows
- Just connect up to 5 AMD cards at time and install driver, i used the newest from amd site
- Now the random freezes begin, but with just 5 cards it is not so intensiv like with 12 and you are able to run things.
- Just wait about max. 15 min after driver install, the system should get for few minutes randomly accessable
- Now run the "stability-script" wich deactivate all power-saving features for installed amd-cards per registry. (run it everytime you change cards!)
- after a reboot everything works fine for me, no freezes anymore.
- redo steps with next 5 cards until all you amd-cards fixed with the script.

So it seems to be a issue with the amd power-saving-features and could also have something to do with Win10 Build greater than 1709 like MATHReX said. I diddnt try to reinstall with older Build but seems like i have to do so, cause in my case the windows runs stable now but claymore not.  

Hope that helps you, would be nice to here from you if you get it stable to mining too!  

Download AMD Compute 'n Stability Script v2.0:
https://drive.google.com/drive/folders/1uEWXhTEvDUIOhsxoXu51hi5-UOplMSjT?usp=sharing

[darkneorus]

set your primary GPU to CPU Graphics, disable iGPU Multi-Monitor in UEFI and connect a display to MB's HDMI connector. your rig freezes because Windows tries to use one of your AMD GPUs for multi-monitor output, if you disable that option in UEFI all the lags will be gone.

[gastanan]

Hi, my hardware is pretty much identical to yours.

MB: ASUS B250 Mining Expert
GPU :10x Sapphire Pulse RX580 OC 4gb
          2x Nvidia GTX 1060 6gb
OS : Windows 10 Home 64Bit, Build 1803

I had the same laggs under Windows 10 like yours and searched months for a solution but finally i get it stable, thx to Andartis at this post:
https://bitcointalk.org/index.php?topic=4353451.msg39179627#msg39179627

This is what ive done:

- Clean drivers with DDU in save-mode if you unable to start Windows
- Just connect up to 5 AMD cards at time and install driver, i used the newest from amd site
- Now the random freezes begin, but with just 5 cards it is not so intensiv like with 12 and you are able to run things.
- Just wait about max. 15 min after driver install, the system should get for few minutes randomly accessable
- Now run the "stability-script" wich deactivate all power-saving features for installed amd-cards per registry. (run it everytime you change cards!)
- after a reboot everything works fine for me, no freezes anymore.
- redo steps with next 5 cards until all you amd-cards fixed with the script.

So it seems to be a issue with the amd power-saving-features and could also have something to do with Win10 Build greater than 1709 like MATHReX said. I diddnt try to reinstall with older Build but seems like i have to do so, cause in my case the windows runs stable now but claymore not.  

Hope that helps you, would be nice to here from you if you get it stable to mining too!  

Download AMD Compute 'n Stability Script v2.0:
https://drive.google.com/drive/folders/1uEWXhTEvDUIOhsxoXu51hi5-UOplMSjT?usp=sharing

thx a lot for all answers ... for me the stability script  solved the problem   thanks again !