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Bitcoin Forum > Bitcoin > Mining > Mining support > What is the fan in the exhaust of Avalon 741?
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subie (OP)
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December 15, 2017, 01:27:38 AM
 #1
Hello,

The exhaust fan (inside the black shroud) on the Avalon 741 got broken, does anyone know what are the specification of the fan?

Thanks all!
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NotFuzzyWarm
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December 15, 2017, 01:33:45 AM
 #2
If you got the miner either directly from Canaan a few months ago or from one of their official distributors, contact them and open a a support ticket. Had a fan in a A721 die and they sent me a new fan and shroud pretty quick no charge.
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subie (OP)
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December 15, 2017, 02:04:21 AM
 #3
Thanks NotFuzzyWarm, not sure where my friend got it, do you know the specification of the fan? will this fan work? https://www.quietpc.com/gt-120-5400
philipma1957
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December 15, 2017, 02:41:07 AM
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Quote from: subie on December 15, 2017, 02:04:21 AM
Thanks NotFuzzyWarm, not sure where my friend got it, do you know the specification of the fan? will this fan work? https://www.quietpc.com/gt-120-5400



no it is only 150 cfm  

look for 200 cfm or higher  


https://www.newegg.com/Product/Product.aspx?Item=9SIAAES6BM1261


and I don't know if it will work as pins matter must be a 4 pin
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December 15, 2017, 02:54:01 AM
 #5
@subie
No, that fan you linked will not work, it is a 3-pin fan without PWM control possibility.
And as Phil said it is only 150 cfm.

The stock fan for the AvalonMiner 741 is Cooler Master A12038-60BB-4RP-F1  12VDC 2.7A fan.

Delta fan which Phil gave a link is good one.


Also Sanyo has a good fan that I used to have installed with my AvalonMiner 6.0 (thanks to Phil and his group buy):
https://www.ebay.com/itm/Sanyo-Denki-120mm-x-38mm-Ultra-High-Airflow-Fan-4-Pin-PWM-224-CFM-9GV1212P1J091/132359710698?hash=item1ed140e7ea:g:ZhgAAOSw00ZZ3d-7
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subie (OP)
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December 15, 2017, 03:31:16 AM
 #6
@ philipma1957

Thank you sir for the link and the information for the fans! Thank your very much! Kiss

@HagssFIN

Thank you sir for telling me the stock fan, I will try looking for it, Thank you very much! Kiss
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