2 hours after post the system restarted again. all stock settings. Is there anything else to check or is it time to unplug some cards and start testing?
It will be a good idea, trying to unplug 1 card (one by one in 12 hours interval). Or, you can try to reinstall your OS. Use default setting on AB. Check all possible thing may causing this problem such as power, cable, connector or whatever. 
Topic: 6 rx580's system random restarts (Read 219 times)
2 hours after post the system restarted again. all stock settings. Is there anything else to check or is it time to unplug some cards and start testing?
Tested 12 hours now since I set it to power of zero and clocks of 1150 core and 2100 memory clock. no resets. now I wonder why I can't pull any power from the cards. Another reason why I love NVidia cards. I have the 1070ti at -27 on power and no problem at all. over a month and no shut down.
I have lower the power to -10 from -25 and going to see if that changes anything. The bios chips on the Fed cards when I move the switch from gaming to mining is what set the memory over clock.. 2100 is there stock settings. I'm going to give the rig 12 hours to see what it does.
....... Or simply create a shortcut to your mining .bat file and put it into your startup folder (windows: run>shell:startup). That way, when your mining rig encounters an error and windows restarts itself, your miner will also automatically restart. Good luck to you.
I think that's not a good solution, imagine if the restarting interval is 2-5 minutes. Will be better if OP trying to find the problems and trying to solve it. Many factors, I think, and OP need to do step by step analyzing to find the problems.
To add to what was said, after you find out what went wrong or which card went wrong, do some google work on making a mining rig "restart script." Or simply create a shortcut to your mining .bat file and put it into your startup folder (windows: run>shell:startup). That way, when your mining rig encounters an error and windows restarts itself, your miner will also automatically restart. Good luck to you.
Try to lower down the mem-clock under 2000, find a stable one, and then you can try to increase it. About your 12 fan, did you powering it from the motherboard? if yes, try to give your 12 fan power from another power source.
Check for memory errors with HWinfo, it could be a bad Bios mod. -20% power limit is very low for RX 580's and too little power will cause them to crash. I set mine to -15% or to -5% on the ones that crash. Dual mining GPU power only is around 100-110 W in GPU-Z.
Try using OverNdrive tool to set the clocks and power limit, like it says in www.mining.help instead of using Afterburner. I set mine using the Claymore config file that automatically applies them when the miner starts. It could also be a buggy miner.
Try using OverNdrive tool to set the clocks and power limit, like it says in www.mining.help instead of using Afterburner. I set mine using the Claymore config file that automatically applies them when the miner starts. It could also be a buggy miner.
System
4 xfx rx 580's
2 asus top strix rx 580 all cards are at -20 on power, 1150 gpu core, 2100 memory speed
8 gig ddr 3000 MHz adata
asus prime-a z270
intel g4600
windows 10 pro
ssd 128 adata
12 fans close to system.
1 750 watt seasonic plat
1 850 watt seasonic plat
using msi afterburner
amd blockchain driver
using mpm to mine on mph. I can leave and come home and the system has restarted but is not mining. I have tried to get msi afterburner to load with windows but it will not start on startup for some reason. System has all updates and windows update is turned off when mining.
4 xfx rx 580's
2 asus top strix rx 580 all cards are at -20 on power, 1150 gpu core, 2100 memory speed
8 gig ddr 3000 MHz adata
asus prime-a z270
intel g4600
windows 10 pro
ssd 128 adata
12 fans close to system.
1 750 watt seasonic plat
1 850 watt seasonic plat
using msi afterburner
amd blockchain driver
using mpm to mine on mph. I can leave and come home and the system has restarted but is not mining. I have tried to get msi afterburner to load with windows but it will not start on startup for some reason. System has all updates and windows update is turned off when mining.
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