EVEA 1600T2 PSU
6x EVGA Geforce GTX 1070
Intel Core i3 Processor (i3-6100 LGA1151)
Memory DDR4-2133 UDIMM 8GB
SanDisk SSD Plus Solid State Drive 120GB
MSI z170A Gaming M7
TRENDnet AC1200 Dual Band Wireless USB Adapter
Windows 10 64bit

After finally getting all the GPU recognized by windows I was disappointed to see that my next stuggle would be figuring out why they all ran at such low watts and mined at such low rates.  I was expecting the watts to be in the 140-150 range right out of the box but all 6 each swing wildly from 75-122wats.  The sol/s rate for the 6 combined GPUs has started as high as 1400 sol/s but usually are down in the 600sol/s range within 1 minute of the program running.

I am mining with EWBF's CUDA Zcash miner through miningpoolhub.

I was finally able to get my 5th GPU to show up by running the flash Bios.  This however led to my next problem.  Once I got my 5th GPU up and going it caused one of my GPUs to run on low watts.  I know this because I borrowed the code below and it gives me a print out of the watts being used by each GPU.

--eexit 3 --log 2 --logfile ZCASH.%date:~6,4%%date:~3,2%%date:~0,2%.ewbf.log --pec goto :restart

This worked okay for a while with 4 GPUs mining at ~430sol/s and the 5th one going between 70-225 sol/s with watts in the range of 75-106 while the rest of my GPUs had watts in the range of 140-148.  Since this is a new question I am going to start a new post.

My first thought was to swap out the GPU but doing this had no effect on the low watts and error.  Because of the code I used (and shown above **that I borrowed) after my GPUs go down on Thread Exit Code 4 the program restarts them witch is typically followed by Thread Exit Code 46 and the GPUs are never again able to restart or get the sol/s to go back above zero.

I was able to get my 5th GPU to show up by running the flash Bios.  This however led to my next problem.  Once I got my 5th GPU up and going it caused one of my GPUs to run on low watts.  I know this because I borrowed the code below and it gives me a print out of the watts being used by each GPU.

--eexit 3 --log 2 --logfile ZCASH.%date:~6,4%%date:~3,2%%date:~0,2%.ewbf.log --pec goto :restart

This worked okay for a while with 4 GPUs mining at ~430sol/s and the 5th one going between 70-225 sol/s with watts in the range of 75-106 while the rest of my GPUs had watts in the range of 140-148.  Since this is a new question I am going to start a new post.

I appreciate your honesty... while I am going to stick around and figure out how to make this motherboard work with the help of other users advice, which motherboards would you recommend for future purchases?

I am new to mining and I have just built my first mining rig.

HX1200i PSU
5x EVGA Geforce GTX 1070
Intel Core i3 Processor (i3-6100 LGA1151)
Memory DDR4-2133 UDIMM 8GB
SanDisk SSD Plus Solid State Drive 120GB
MSI z270 Gaming Pro Carbon
TRENDnet AC1200 Dual Band Wireless USB Adapter
Windows 10 64bit

The problem I am having is that I am getting the Code 12 error below:

***This device cannot find enough free resources that it can use. (Code 12)

***If you want to use this device, you will need to disable one of the other devices on this system.

I have tried uninstalling and disabling nearly all of the different system devices, changed the bios settings, reinstalled the drivers, reinstalled windows 10 and have been googling and reading everything I could find but I still cant fix it.  So I registered my account and am giving this a try.  I have read that other have got 6 GPUs working on this motherboard so I cant figure out why I cant even get 5 to work.  Please let me know if you have worked with the MSI z270 Gaming Pro Carbon Motherboard with this problem or if you have an idea of what I need to disable to make my 5th card work.  

I am new to mining and I have just built my first mining rig.

HX1200i PSU
5x EVGA Geforce GTX 1070
Intel Core i3 Processor (i3-6100 LGA1151)
Memory DDR4-2133 UDIMM 8GB
SanDisk SSD Plus Solid State Drive 120GB
MSI z270 Gaming Pro Carbon
TRENDnet AC1200 Dual Band Wireless USB Adapter
Windows 10 64bit

The problem I am having is that I am getting the Code 12 error below:

***This device cannot find enough free resources that it can use. (Code 12)

***If you want to use this device, you will need to disable one of the other devices on this system.

I have tried uninstalling and disabling nearly all of the different system devices, changed the bios settings, reinstalled the drivers, reinstalled windows 10 and have been googling and reading everything I could find but I still cant fix it.  So I registered my account and am giving this a try.  I have read that other have got 6 GPUs working on this motherboard so I cant figure out why I cant even get 5 to work.  Please let me know if you have worked with the MSI z270 Gaming Pro Carbon Motherboard with this problem or if you have an idea of what I need to disable to make my 5th card work.  

I moved this to the beginners section as that probably is a better spot for my beginner questions