13 GPU problems : MSG buffer full gpu stuck - 8GB Ram? CPU?

[cccomputing]

Hey guys!
I started to build 2 rigs with 13 cards but both of them cause problems with simpleminingOS and dstm miner.
Problems:
1) The hashrate slowly goes down from 5400 sol to 3000 and less.
2) I get MSG buffer full gpu stuck messages and shutdowns.

Is it possible that 13GPU rigs need more than 4GB Ram to run fine? Maybe 2x4GB? Or is the Intel G3900 too weak for 13? I dont know what it is but both of my 13GPU rigs are causing trouble.

Specs:
Asrock H110 Pro BTC+
Intel G3900
1x4GB Crucial 2133 DDR4 Ram
Corsair HX1000 PSUs

Thanks for your help!

[cccomputing]

Using SimpleminingOS and HiveOS and both still had trouble with the 13 GPU Rigs so i guess its a Hardware Problem.

[treanski]

use windows 10 -> no problems with 13gpu + better config / oc/uc options

[stash2coin]

What cards your using ? How many PSUs per rig? single 1000W  power supply is not enough even for 13 1060 6GB if not power limited. Power limit the cards to something like 90%, Try with EWBF miner and see if there is a difference.

[cccomputing]

Im using two Corsair HX1000 for 13 cards at 100W powerlimit and measured i have around 1400W so all should be fine