Guys i have a serious problem, copied the nvidia version with hddrawcopy on the kingston ssd and when i change the email and save it after loading the smos it returns teh email address to admin adress. Anyone have similar problem, i tried even to make it read only but it does the same thing. I tried to make a new copy and no change, i think it is a bug or something.

Where are you from, i have the 4U design with 3 vents and two PSU option. Similar to gray mater design.  We can ship it to Europe. I will post more details soon if anyone will be interested.

Ok guys, i figured it out. For those who have stuck gpus on optiminer showing  300mhz, what you have to do is run claymore first for couple of minutes where all gpus should run normal and then switch to optiminer. All gpus should work flawlesly. If you need to restart miner again on optiminer see if it shows 300mhz again. If it does just repeat the process.
Let me know if that worked for you

I will test everything when i get back home on Wednesday, i din't test it with claymore's miner since i wanted to use optiminer, anyhow i will try that as well, but i am sure it is not hardware related.

Rig is h81 pro btc, 6x xfx rx 470 4gb Black and i am using adata 3.0 32gb USB

What i have noticed is that when you updated to optiminer 1.6.0 i started to have problems with few cards 300mhz clock speed and no hashing. until then all rigs were working without issues, when i restarted my rigs they updated the miner and then i started to have problems. Any chance you can implement a version prior 1.6. so we can test it if that is really an issue? I sitll have one rig which i didnt restart and it is still working. I bet if i restart it i will have the same issue.

Yes i have same issue, some cards work some cards are just on 300 mhz and not mining. i really cant figure out what is the issue. i tried changing risers but i think it is the miner itself. I am slo getting error 147 and i dont have any card with moded bios. Does anyone has a solution or we have to wait? Thanks