hello everybody, anyone knows why my rigs shut down continuously?



I am using SMOS in my rigs. In some cases the rigs shut down up to 50 times in under 24 hours. The motherboard's bios is set up to restart the rig once it looses power to the last state, meaning the rigs loop in a shut down/restart cycle that can go on for a while, sometimes more, sometimes less.

Hardware=

GPU: 6 x "XFX Radeon RX 580 GTS XXX Edition"
CPU: intel i3 8100
Motherboard: "gigabyte Z370 HD"

It worth notice that upon a lot or rigs with the same exact hardware in the same room, as you can see in the picture, the shut-down/restart process occurs from 2 to 48 times in less than a day. From what I know the rigs shouldn't shut down at all in normal condition. So, something is wrong. I don't know which should be the average rate for 24 hours per rig, if any.

I am using claymore-eth-v11.0 whit the following options: -wd 1 -r 1 -epool stratum+tcp://eth-eu.dwarfpool.com:8008 -ewal $walletETH/$rigName -esm 0 -epsw x -allpools 1 -asm 1 -mport 127.0.0.1:3333

Considerations:
1- The temperature could somehow trigger the process. The heat sensor could shut down the machine, the bios reboot the machine, the sensor still over the temperature threshold and shuts down again and so on. Sometimes after the cool down the vicious cycle continues though and sometimes the temperature doesn't justify the process.
2- When I detach all the raiser cables from the motherboard and unplug all the power cables from the PSU to the raisers and to the GPUs, the problem immediately stops and the rig doesn't shut down anymore. But of course, this is not a solution. Anyway this make me think the problem does not rely on the motherboard, CPU or RAM.
3- It could be that the raisers are damaged in some ways that I don't know, but the extent of the problem is so huge that I suppose it just couldn't be the case. Besides, I purchased them from at least 4 different vendors in amazon with good overall reviews.
4- It happens with both NVIDIA and AMD graphic cards.
5- My bios settings:
_Vtd: Disabled
_4g encoding: enabled
_power restore: "memory"
_internal graphic: disabled

the rest is on bios default mode

Questions:
1- What the hell am I doing wrong? I know people here seems to know a lot so help me out brothers!
2- How much is a normal shut down rate per day per rig? 0? 1? 10?

To all the brothers out there, I ask for help