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Topic: Antminer S3 one side getting too hot, reports 60c and fan @ 9000 RPM (Read 1530 times)

hero member
Activity: 1666
Merit: 513
Leading Crypto Sports Betting & Casino Platform
You too?

I have miners like that and been running for about 6 months now, just leave them be.

Many will say to do a firmware update but there are more horror stories than success stories with updating Bitmain S3 firmware.

I never did firmware updates, never overclocked and never had problems.  

My advice is, don't fuss about it, you'll just make a minor problem a major one.  No pun intended...

PS: If you take off the cover and inspect the miner, you may notice on the top left, some of the C19 capacitors are missing.  This was to cutoff the annoying beeper that never annoyed me once, completely.  Circa Batch 3-5.  My B1's have no issues but beeps on startup, on HW errors and block finds.  My guess is it drove a lot of miners insane and the fast solution off-the-assembly line was to cut off capacitors. However, that threw off the fan speeds and unit temps on the interface.

I prefer my B1's over any other S3 I have.
hero member
Activity: 857
Merit: 1000
Anger is a gift.
I have had the opposite after the 11/26 firmware. Just saw one of my units was running at 150 GH/s. 1 blade was at 27C while the other was at 36C.
hero member
Activity: 742
Merit: 500
Open the case and test the heatsinks, be sure that they are very hot. Might be a sensor error...
sr. member
Activity: 364
Merit: 250
I went to check my antminer this morning, and I noticed it was making a loud blowing noise, unusual, because they are normally next to silent.

Then I checked the temps, on one side is says 60c , so that's 140 degrees F, twice the temp of the room!

Fans seem to both work.

Can anyone give me advice on what to do? Should I remove the boards and try to put some silicon on there? (if so which kind).

Or, am I just totally out of luck.

Thanks for all responses...
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