Re: [Mining OS] SimpleMining.net - Easy to use GPU MINING Operating System
waiting too... for dag-fix in SMOS 
-10% MH/S actualy!!!
As now there is no universal fix and it wont be implemented automatically becasue of many problems that can cause.-10% MH/S actualy!!!
If you want please use this image and try booting it with youtr rig. Its the only solution for now.
When AMD will release new drivers then i could implement probably fix as optional update.
Anyway i wont push this update to everyones rig becasue it would be destructive.
http://download.simplemining.net/simpleminer-RX-v1118_dagfix_computekernel.img.zip
i confirmed 15Mh/S more with 7xRX580 NItro + 8GB
BUT ALSO 330W more !!!!!!!
IMO results are different case by case....
The image simpleminer-RX-v1118_dagfix_computekernel.img.zip didn't work for me in any off my rigs!
The solution was adding the kernel to my v1119 SMOS by hand. But i only had good results in my 480 and 580 cards. My 470 and 570 rigs consumption where off the charts....
Here are my results for the working rigs:
#### RIG 01 ####
6 x (RX480 SAPPHIRE REF 8G --> 1095 2080) --> 890W (148,3W/unid) 157,5mh (26,3mh/unid) | 5,65W/mh
950W (158,3W/unid) 172,3mh (28,7mh/unid) | 5,51W/mh (DAG FIX)
#### RIG 02 ####
6 x (RX480 XFX REF 8G --> 1095 2080) --> 910W (151,7W/unid) 157,5mh (26,3mh/unid) | 5,78W/mh
960W (160,0W/unid) 172,3mh (28,7mh/unid) | 5,57W/mh (DAG FIX)
#### RIG 03 ####
6 x (RX480 MSI GAMING X 8G --> 1191 2150) --> 885W (147,5W/unid) 162,5mh (27,1mh/unid) | 5.45W/mh
970W (161,7W/unid) 175,0mh (29,2mh/unid) | 5,54W/mh (DAG FIX)
#### RIG 04 ####
2 x (RX480 SAPPHIRE NITRO+ 8G --> 1150 2130)
1 x (RX480 SAPPHIRE NITRO+ 4G --> 1150 1998)
2 x (RX580 SAPPHIRE NITRO+ SE 8G --> 1150 2150) --> 780W (156W/unid) 137.5mh (27,5mh/unid) | 5,67W/mh
890W (178W/unid) 145,8mh (29,2mh/unid) | 6,10W/mh (DAG FIX)
How can I add manually the dag-fix kernel?
Hi
I did the following steps:
1 - Stop mining (with a monitor and keyboard attached to the rig do ctrl+c) and exit to console;
2 - At the rig or remote SSH to the rig as root (ssh root@IP_ADDRESS and miner1324 as pass);
3 - wget -qO - http://repo.radeon.com/rocm/apt/debian/rocm.gpg.key | sudo apt-key add - sudo sh -c 'echo deb [arch=amd64] http://repo.radeon.com/rocm/apt/debian/ xenial main > /etc/apt/sources.list.d/rocm.list'
4 - sudo apt-get update
5 - sudo apt-get install rocm
6 - sudo nano /etc/default/grub
7 - look for this line: GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 consoleblank=0" or something like this and add "amdgpu.vm_fragment_size=9" at the end like this:
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 consoleblank=0 amdgpu.vm_fragment_size=9"
8 - sudo update-grub
9 - sudo reboot
Thats it!