Quote from: vk985 on February 28, 2018, 03:32:47 AM

I ordered a lot of S9's (January Batch) and all of them came with the Y.L. D12BM-12D Fan (yellow colored sticker). But one of them came with a Nidec Ultraflo fan. Putting my hand in front of the fans, it is clear that the Nidec is not as powerful as the Y.L.

Should I be concerned? Anybody else have that fan? It just seems weird to me that machines from the same January Batch have different fans.

I have seen the same thing on my miners. Interestingly, I have one miner that always runs much cooler than the rest and that one has the Nidec Ultraflo fan on it. I have actually tried to find more of those fans as I am considering replacing the fans on the other miners but so far I have not been able to find a source for those fans.