Help with high wattage rx 470 saphire nitro quad uefi

Hello everyone, as the title says I have an rx 470 mining edition and it is drawing to many watts. I have another one in my rig and it is running fine but this one is being a bit dodgy. I tried OCing it but that made my card go a bit crazy. Apparently you are not meant to OC mining editions, I'm out of ideas.

Image: https://ibb.co/r38dPdh

Any help would be great, thanks in advance.