Coltcaine (OP)
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April 04, 2018, 12:54:56 AM |
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I ordered a replacement fan from a link a guy on here gave me. Fan 3 is at 4,680 fan 5 is at 6,805 the temps are staying at 80c and below been running for an hour. Which is the exhaust fan and which is the intake and does this seem legit and safe? Delta QFR1212GHE Fan 12 Volt 2.7 Amp 12038 120mm*120mm*38mm 4pin https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F162854214490That is the fan he sent me to get |
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leowonderful
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April 04, 2018, 01:09:55 AM |
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The fan type seems good and the temps are decent. IIRC the intake is the slower fan and the faster fan should be the exhaust on S9s. Things look good temperature wise, I'd continue monitoring things for a bit more before leaving the S9 on its own again. I do notice fan 5's at more than 6000 and that seems abnormal for S9s though I don't work with them often- 6000RPM should be the max for QFR1212 fans.
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Coltcaine (OP)
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April 04, 2018, 01:14:16 AM
Last edit: November 18, 2019, 12:45:55 AM by frodocooper |
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https://imgur.com/nw79wVyl.pngheres my miner status. its now at temps 85 84 84 fan speeds 3,960 and 6,120 my other miners both fans run at around 5600 rpms and temps stay around 76 should i power it down and order another fan from elsewhere or am i being overly cautious?
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leowonderful
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April 04, 2018, 01:34:01 AM
Last edit: November 18, 2019, 12:46:31 AM by frodocooper |
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What temperature was your machine running at previously before swapping the fan out? It could be a heatsink related issue or you might potentially have a faulty fan. The fan speed's definitely weird on both fans, I would let it run for a bit more and if it hits 90 pull the miner. There's something off here but I can't quite pinpoint it.
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suchmoon
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April 04, 2018, 01:38:36 AM
Last edit: April 04, 2018, 01:49:01 AM by suchmoon |
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Why did you replace the fan? Fan failure due to age and/or dust could mean your heatsinks are clogged as well. Edit: what's the ambient temperature? Your temps don't seem too bad compared to some of my miners but I have like 25C ambient so YMMV. |
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Coltcaine (OP)
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April 04, 2018, 01:40:37 AM |
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fan failure due to bearing its a brand new s9 before i was averaging 76 c temps
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suchmoon
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April 04, 2018, 01:51:48 AM |
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fan failure due to bearing its a brand new s9 before i was averaging 76 c temps
You can try swapping the fans with another miner to see if that really makes the difference. Make sure there are no obstructions to airflow or anything else that could affect it. |
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Coltcaine (OP)
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April 04, 2018, 01:54:46 AM |
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ive swapped fans but what im seeing is the lack of rpms and the temps it ran cooler with the other fans i have ordered a replacement from bitmain. but what im wondering is it safe to run it till the replacement arrives or shelf it until then?
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suchmoon
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April 04, 2018, 02:03:55 AM |
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ive swapped fans but what im seeing is the lack of rpms and the temps it ran cooler with the other fans i have ordered a replacement from bitmain. but what im wondering is it safe to run it till the replacement arrives or shelf it until then?
If it was my miner I would run it as long as it's below 100. I don't know what's "safe". Firmware cutoff is like 120 or more. |
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Coltcaine (OP)
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April 04, 2018, 02:18:52 AM
Last edit: November 18, 2019, 12:44:31 AM by frodocooper |
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hasnt bugged from 85 ill monitor it.
put the airmover i had in my garage right behind dropped the temps to 80 should be good... thanks for the input
i do have a couple antminer s7's laying around would i better off taking a fan off one of them.
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suchmoon
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April 04, 2018, 03:11:12 AM |
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i do have a couple antminer s7's laying around would i better off taking a fan off one of them.
Yes, worth a try. |
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AlecMe
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November 16, 2019, 12:32:54 PM
Last edit: November 18, 2019, 12:47:31 AM by frodocooper |
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The exhaust fan died on my S9(j) ordered on from here: https://www.ebay.co.uk/itm/2-Cooling-Fan-6000RPM-4-pin-Connector-Replacement-For-Antminer-Bitmain-S7-S9/264267373357The problem I have now is that the new fan works at a whooping 12.000 + RPM (a bit noisy). Should i change the other fan as well to reduce to total speed? Is there a difference between s9 and s9j fans (could i have bought the wrong fan maybe)? It appears the Fan_CTRL function limitation does not work as the lowest i got him was at 9500 rpm. On the good sIde i got it on the exhaust side and work tooo good. I have already tried moving the power from the Fan5 to Fan6 and back to compare (no difference has been noted). Any advice in reducing this noisy one is welcomed The fans (old and new, can be seen here) https://imgur.com/a/0oosR3v |
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