SO many things that I could point out here ...
193mh/s at 455W? That's impossible even if its just the GPU-z readings that you are accounting for (actual power draw is about 40% higher than GPUz readings).
7 X 26 = 182 so if on simplemining you are getting 156, one of your cards isnt working.
If you had ever used Linux and tried to tweak graphics cards settings like clocks or volts you would know why such a "feature" wasn't implemented. AMD linux drivers do not allow for such tweaks, unlike their windows drivers. Be thankful you get any tweakability at all, its quite a nifty trick that allows you to do it on SmOS or EthOS and is through implimenting a tool developed by one of the resident geniuses on this forum.
Also solutions like simplemining are for people who need to manage a large number of rigs, nothing could come close to the individual tweakability that Windows 10 offers.
So, yeah, good that you are open about the possibility of being totally wrong, coz you are.
You are totaly correct, I made the mistake of not including the 3 Sapphire but only 2, my bad. The wattage output is 535-540. and the hashrate for the simpleminingOS would be efectively 26Mh/s x 7 Cards 182Mh/s.
Those are the GPU-z readings. Software wise it could be wrong but I wanted to list the power config you can get for each of the cards. I did not include the full system output since that is per system, and I could have more or less depending on the PSU, Mobo, CPU, Drives etc.
I am not implying that it's anyone's fault that simpleminingOS or any other linux distribution has this limitation.
All I did was simply say that in my case, and in other MixAndMatch hardware cases, this can potentialy be a problem.
And since I was willing to pay for the OS and give the developer what he diserves for his work, I am now unable to do so.
If this is something that can be implemented on a working state, why not do it and lose money from potential buyers?
So 10Mh/s for someone with 2-3-4 rigs might not be an issue but for me it is.
Sorry if I jumped to conclusion before considering some other facts, but in the end, losing Hashpower and maybe Wattage control, is a problem.
I didn't knew that this OS is for people needed to manage big rig setups. I thought it was also for the rest of us, since most people with large number of rigs would have their own implementations.
So please tell me why was I TOTALY wrong again?