Try changing pool to something else.
Use nearest pool servers (EU vs USA)
There is a guy also from poland which made own pool: http://ethpool.pl/ - this pool gives much more profit than standard ones. I am mining there for 3 months without any problems.
Payments are done 2 times a day.
I cant guarantee this pool becasue i dont know wery well this folk but its working 4 months now without problem and bringing more profit than other pools:)
You can test it and compare results with other pools (its  like 2-10% more profit)

My Asrock PRO BTC can start up in linux without any connected dummy plugs. You just need to make "default onboard graphics to internal" - this could also work in biostar i suppose

In April/May there will be firmware with new Extension Boards and SSRv2 which will allow to go up to 40 minutes. This firmware will work on SRRv1 as it is the same archirecture.

- undervolt works in my OS but you need to check it yourself becasue its not common undervolt Or if you have all gus with undervolt offset then it will work with no problem.

OK i added 4.11, if someone want to test

https://simplemining.net/download/simpleminer-RX-v1085-4.11.rc3.imgc

BETATESTING for people that cant run specific motherboards on my OS.
OK, so as you know, some newer motherboards just wont work under my linux image.
Thats why i made 3 addonitional images with different kernels (its a linux core).
Rest of the system is ofcourse  compatible and accually the same.
Anyway if you have board that didnt worked under my normal image, please flash each of this image and see if it would help.
Any results please send me to admin@simplemining.net

https://simplemining.net/download/simpleminer-RX-v1085-4.8.17.imgc
https://simplemining.net/download/simpleminer-RX-v1085-4.9.16.imgc
https://simplemining.net/download/simpleminer-RX-v1085-4.10.4.imgc
https://simplemining.net/download/simpleminer-RX-v1085-4.11.rc3.imgc

Email me the RESULTS:
To: admin@simplemining.net
Subject: Different kernels test
Motherboard model: "for example MSI or asus and specific model...."
Problem description: "for example. Motherboard totally wasnt working"
Result:
4.8.17 - its working ....
4.9.16 - it doesnt work ...
4.10.4 - it work but it sings ...
4.11.rc3 - ....

OK, first of all, turn off those stupid windows updates
They can only cause trouble than fixins something
So turn them off.
Second, in next Firmware release when SRRv2 and Extension Boards will come, there will be possibility to set longer period of watchdog timeout.
Right now its 255 Seconds and if in that time rigs wont send any keepallive packets then it will be restarted.
But after upgrade it will be 2550 seconds (x10) and this will be ideal for you, so for example you should set i dont know 10 or 20 minutes and only then watchdog will reboot windows.
Anyway, my SMOS (Simplemining Operating System) isnt ideal but people likes it. There is many more things to be done but it is usable as people are saying
Also if you didnt, do some undervolting, that way you will be able to plugin more rigs But you propably know that

UPDATE:
I have fresh batch odf SSRv1 and i will release then today/tomorrow in shop.
So keep updated I will also add more informations about SSRv2 and Extension boards to show people differences and to let poeple choose if they should wait for SSRv2 or buy SSRv1 right now.
The changes are cosmetic and its the same hardware. Only slots (connectors) changed and the rest stays the same becasue it it solid nice board

There is also firware development in progress but i will release it with SSRv2, and ofcourse it will work with SSRv1.

Accually it could be the driver itself, hmm i need to upgrade it and see if it will help
This is what i will check

its something else, i even stopped miner and tried to change those clocks but i cant
I even swapped gpus with that 300/300 with other working ok and the same thing GPU0 is at 300/300
I am wondering what causing it

Guys, any of you met the problem that for example GPU0 is at 300/300 clocks and the rest gpus are ok ?
Do you know a solution ? (something in bios ? )
I am trying to fund solution and what causing it.

Yeah, still getting overwhelmed by SRRs.
Dont know when As soon as i can i guess

Right now you would need to forward 22 port of your rig and send commands to it.
Or have one windows team viewer in this location.
Managin rig from dashboard will be much later.

TEMPORORARY DOWNTIME of webservice only. (10 min)
Rebooting server. (note that while rebooting, only stats and changing config wont work but your rig is mining fine and website down doesnt affect mining)

Nope, you cant.
Anyway i wont offer this function any soon.
For freezing rigs see my SimpleRigResetter Device
It will be stock in few days

it gives remote access but in different way
All is done  via web dashboard.

If you want i can look into your rig but you would need to email me at admin@simplemining.net with ether forwarded 22 port of your miner or team viewer details to any windows in the same network + ip address of your miner in network.
I can look at this why is it not mining but most propably its something wrong with risers ir hardware ? Did you tried less gpus or switching risers ?
In mining world, rig could make unpredictible problems. Switching risers can even fix problems
Once i had this stupid rig which was crashing all the time, i switched gpus, risers, nothing helped so i disassempled it and connected everything once again.. Gueess what  ... It started to working ok
Anyway try if you rig will start mining with 1,2,3,4,5 gpus and see if one of them causing problem that it stops on OC.

You see, this is Linux advantage.
It just works
Thats why most servers in the world are on linux.
The disadvantage of linux is that you have little performance loss like 1-3 % and you propably need to have custom bios (but you need to have it anyway if you want to squeeze best profits)
But if you will add managment of farm 100+ rigs then managing this Windows "thing" is F massacre
I personally am using Windows on my Lenovo Yoga 3 14 laptop while linux just had too many issues on it.
But i would still go to Professional MAC (its also unix system) + servers and miners on Linux.

Most of users in mining has AMD gpus, and i am doing first things that most people want.
Later ofcourse i want to implement other features such as nvidia but its really not my priority (too little users)

Not any soon.

I still dont know why you guys are buying this Panda miners
It is more expensive and it would be much harder to sell it.
Aslo warranty is 1 years versus 3 years.

in this OC ? or you mean OS ?
And what you mean Wake on lan ?
 you want to take other PC's fro this linux ?
I dont support any of that, nobody needs it, rig should work 100% time
https://www.google.pl/search?client=opera&q=wake+on+lan+linux&sourceid=opera&ie=UTF-8&oe=UTF-8