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Author Topic: Bitmain sent 1 S9 with a different exhaust fan  (Read 110 times)
vk985
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February 28, 2018, 03:32:47 AM
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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.
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HagssFIN
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February 28, 2018, 06:38:54 AM
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My S9 that I did a review about also had Nidec fans, no issues. https://bitcointalk.org/index.php?topic=2676763

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February 28, 2018, 07:36:03 PM
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My farm has at least 3 different brands of exhaust fans,  all from one batch of miners...  nothing to worry about.

I mine bitcoin for a living, and I mine at Kano.is!
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February 28, 2018, 07:53:58 PM
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My farm has at least 3 different brands of exhaust fans,  all from one batch of miners...  nothing to worry about.

I was just going to mention that I get 2-3 different fan types with my large orders of s9s. Its normal and if they put the fan on there, its good enough to get the job done.

Stop buying industrial miners, running them at home, and then complaining about the noise.
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March 02, 2018, 03:08:39 PM
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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.

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