I'm encountering the same issue.

Like others have said, intake and outtake fans are pretty key.  Not sure what your exact setup looks like, but placing the GPUs the right way is super essential as well. Make sure the heatsinks have enough room to suck in cool air and are not blowing hot air directly at another card etc. Rig layout is very big when it comes to heat management, I see a lot of people on here with setups that are pretty poorly thought out.

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Ah yes, I remember reading about how Dogecoin was introduced by Emperor Marcus Aurelius in 162 AD.