So after a crazy amount of:
Switching to a new PSU, new Motherboard,changed driver version for chipset, switched ram and CPU,windows uefi mode, Reinstalled different version of windows 10, applied a registry blocker,Adjusted page file to 50 GB, Switched other risers, and power cable,Unistalled Afterburner, Made settings in wattman,Reinstalled afterburner, set GPU bios to stock for 1,2,3,4,5,6 Gpus in this order, than back to mining bios,switched riser power cables again, changed again using molex instead of sata and other stuff - i still did not find the problem.
What i can tell you is what i have observed so far.Sometimes miner starts with 6 gpus with full hash and runs ok,sometimes it doesn't.Usually when it doesn't it is when i pulled the power cable out after shut down and let miner like that for 10-15 minutes(no ideea why).When it doesn't it can give 0 hash for 1-3 GPUS like in the image below.
VERY WEIRD AND I GUESS HERE LIES THE SOLUTION FOR WHO UNDERSTANDS WHY IT IS HAPPENING
When miner starts with 0 hash for some of the GPUs, i have observed that said GPUS with 0 hashrate do not generate theyr DAG.So if i will have 0 hash on gpu 4 5 6 they didn't generate theyr dag at the beginning of the mining process and after a while they "will not respond" while GPUs 1,2,3 generated DAG succesfully at the beginning of mining process and will not give that error.So after the miner works like this for a couple of minutes , it gives the error "Threads not responding, restarting" for all the GPUS that had 0 Hashrate and basically stops mining process for the whole system, this keeps repeating in a loop, with the gpus having 0 hashrate beeing always the same.
I added a Screenshot with this error.
https://imgur.com/a/plF8HvLSometimes all 6 gpus complete theyr dags succesfully and miner mines ok, but most of the time 1-3 GPUS do not generate DAGS and soon the respective error follows.
What is this?Does anybody know?It is making me crazy !
Please help !