Upgrading S19jpro fans from 2.7A 6000RPM to 3.12A 7400RPM

So I've got a few Ipollo B1L miners doing 60 Th/s, and they come with 4 fans at 3.12A and 7400 RPM. They keep the hashboards under 65C without any issue. I'm thinking about swapping out the fans on my S19jpro units, which currently have the 2.7A and 6000 RPM fans. The problem is when it's hot out, around 28 to 30 degrees, the chip temps jump up to about 80C. I know the Ipollos have a different cooling design inside. Do you think upgrading to 3.12A fans will help lower the temps? Could there be any issues with the current in the circuits? Has anyone ever tried this kind of fan swap before? Appreciate any insights or experiences!

If the fan from apollo is compatible to s19j pro with 7400 rpm then it should work but I do not know if the fan will run normally because I heard someone from Reddit replace the fan from other models into antminer units the result become abnormal RPM like 6000rpm it turns to 60,000rpm. There are two different fans the brushless and the ball-bearing one Bitmains recommends only brushless fans. If you want to cool down the miner a bit when hot days then I suggest run the miner at low power mode and make sure you have proper way to take the hot air out from the room like adding ventilation and exhaust so that the hot air on the room do not stuck.

nice answer. How can I switch the miner to low power mode?? or I must change the firmware? under modes I only has Normal mode and Sleep mode !

blockchain is so dull and boring we have posts about fans again to make mystery out of how cooling works like its some big mystery how air cools hot and how the chips require a certain temperature to operate because the stupid mfg said so. throw your miner in the garbage.

bitmain has a low power firmware download for your miner.

Yes, you can find that firmware here - https://m.bitmain.com/support/download