Lower hashrate when mining with two cards.

M

mimo3948

n00b
Joined
Dec 18, 2017
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This is my first time mining so I thought it's best to begin learning small before building a full 7gpu rig. I started with putting two rx570 cards directly into my old pc's pcie-16 ports without any riser. I bios modded them and overclocked both and got pretty decent speeds. When I run the system with only one card I can get about 29MH/s on my Gigabyte Aorus and 26-27MH/s on my Msi armor. When I run the system with both cards, my armor card drops down to about 19Mh/s. I've tried everything but I can't find a solution, could someone help me out?. These results I got using Claymore mining ethereum.
 
Ensure Crossfire is disabled, and also that you are using the Blockchain drivers.
 
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