Issues with miner (stopping) or cards fans (stopping) - NoOb. :)

[50ShadesOfDamon]

 

Looking online and on youtube and found a couple of topics but nothing really resolving the issue. I have a new miner with 6 Sapphire radeon 470's putting out around 170 mh currently. The rig runs between 30 minutes and an hour and a half and one of two things happens. A couple of cards or more (fans will stop). OR the Clayminer freezes.

We changed out power cords, no updates from windows were done, nothing on the graphics cards etc...  The guy we purchased the rig from apparently tweaked the cards but we can't find where to change the tweaks. Called him and have had no answer...

In some of the reading, I saw that someone had opened up a script and said to put -i 3 or something of that nature to reduce the intensity without sacrificing the performance. I could not find where to put that in the start command. His wasn't the same as the one I have which is the one with Dcred that runs as well (though is not currently dual mining).

Windows 10 machine.
Box Fan for extra cooling on cards
All cards running around 58C to 62C - fan speed 64 to 72%   
Claymore's Dual ETH + DCR/SC/LBC/PASC GPU Miner v9.0

Any assistance would be appreciated.

[50ShadesOfDamon]

No one? ack

[fanatic26]

Your temps and everything look fine. I noticed you say the 9.0 version of the miner, have you tried updating to the current version? (9.4)

From the miner thread:

-ethi   Ethereum intensity. Default value is 8, you can decrease this value if you don't want Windows to freeze or if you have problems with stability. The most low GPU load is "-ethi 0".
   Also "-ethi" now can set intensity for every card individually, for example "-ethi 1,8,6".
   You can also specify negative values, for example, "-ethi -8192", it exactly means "global work size" parameter which is used in official miner.

[iamnoobplzhelp]

Troubleshooting is time intensive, but check each of your risers. That's where I always start. Especially if it's one or two cards that are consistently failing.
Do you have enough power? It sounds like they might not be getting enough power.

Make sure that each riser card is powered by an individual molex or SATA chain. Don't put more than 2 per chain. The PCIe riser are the best, but not everyone has enough PCIe cables to power them.