Overclock for 6600 and 6800

Hey, today i moved from eth to rvn. need a overcklock settings, i cannot find nothing good for them..

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Maybe anyone have this card with good settings?

os: hive os linux

pool : 2miners

coin: rvn

https://preview.redd.it/f0qacdiohon91.png?width=735&format=png&auto=webp&s=fd9de3daf3407142b8db724f443d62b613138330