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Author Topic: Weird T17 Fan  (Read 56 times)
fyoung55 (OP)
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February 17, 2021, 03:43:05 AM
 #1

I have one fan that won't spin up over 1800 rpm.

On 100% I get
fan1 = 5860
fan 2 = 5840
fan 3 = 1800
fan 4 = 5880


I switched the fan for a new one, still 1800.  I swapped the leads at the control board for fan 2 and fan 3 and now fan 2 is 1800.  Seems like where the fan plugs into the control board maybe be wonky.  Anyone else ever see this?  I checked using a piece of paper and the one fan does seem to "suck" less.
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February 17, 2021, 04:21:21 AM
Last edit: February 18, 2021, 11:46:39 PM by frodocooper
 #2

I had this bug with some of my bitmain l3+
I booted three times in a row.

It went away. I have seen weird fan action on s9s the fans ramp up ramp down. wont go fast.

yet test on other controllers they work.

I think the three software boots 🥾 in a row clears shit from the cache.

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February 18, 2021, 06:03:14 AM
 #3

I had this problem before" like a long time ago", unfortunately, "3 boots" didn't fix it, I sadly had to install the custom firmware and disabled fan check, in my case, however, the fan was spinning just fine but the reading was bad.

What you could try:

1- A hard reset and different stock firmware.
2- Custom firmware.
3- A new control board.

The third one will sure fix it, but not sure if it's worth it.

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