Is it really ok to have antminer S9 operating at over 80 degrees celcius?

[Sandal_Hat]

Is that really ok?
Do u have antminers S9 running for over a year under 90 degrees?

My D3 running up to 72 degrees celcius and my S9 up to 81 degrees.

Wat temperature do u run your machines at?
Bitmain manual says it will stop at 125 to 135 degrees celcius but that is really high...

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[fanatic26]

In the summer my S9s run over 100c at the chip level. The thermal cutoff is 115c, thats when they stop mining. 80 degrees on a chip is relatively cold, dont worry about it.

[Chan8]

In the summer my S9s run over 100c at the chip level. The thermal cutoff is 115c, thats when they stop mining. 80 degrees on a chip is relatively cold, dont worry about it.

So your saying s9s can run at 100C? Wow thats crazy. Also 80C is relatively cool?
I never ran anything around 100C, maybe a few of my gpus might hit 80C once in a blue moon though.
Those temperature seems pretty high, and you havent damaged anything so far?
I always thought anything around the 80C temp would be worrisome

[Sandal_Hat]

In the summer my S9s run over 100c at the chip level. The thermal cutoff is 115c, thats when they stop mining. 80 degrees on a chip is relatively cold, dont worry about it.

I see. How long have your antminers been running?

In the summer my S9s run over 100c at the chip level. The thermal cutoff is 115c, thats when they stop mining. 80 degrees on a chip is relatively cold, dont worry about it.

So your saying s9s can run at 100C? Wow thats crazy. Also 80C is relatively cool?
I never ran anything around 100C, maybe a few of my gpus might hit 80C once in a blue moon though.
Those temperature seems pretty high, and you havent damaged anything so far?
I always thought anything around the 80C temp would be worrisome

Thats wat i think as well but there is alot of info that under 90 degrees for antminer is good. I find it weird too but those info do come from some good posters like notfuzzy.

I suppose these chips can handle that much heat but somehow I dont feel that comfy with it lol.

[fanatic26]

The first of the s9s I have on site have been running since January.

With 60f intake temps pretty much all of my machines are in the 70-80c range. IMO 70-80c is ice cold for these machines. I ran these things all summer over 100c with no issues. These kinds of chip temps are the new norm for 14/16nm tech. For example my water cooled GTX 1080 still hits 70c at full load.

[Sandal_Hat]

The first of the s9s I have on site have been running since January.

With 60f intake temps pretty much all of my machines are in the 70-80c range. IMO 70-80c is ice cold for these machines. I ran these things all summer over 100c with no issues. These kinds of chip temps are the new norm for 14/16nm tech. For example my water cooled GTX 1080 still hits 70c at full load.

I see. 70-80 is good man.

Hmmm but i get above 80c all the time for one chip though. The temperature is always the same where I live.
60F intake temps, that about 16 degrees celcius in your room. Do u get condensation issues in the room or machine or on top of the portable air con?

My room temperature hovers between 31-34 degrees celcius and I can put air-con but it does not help much since the air gets sucked out quickly by my strong ventilation fan.
The room is a small 5 square meters room.

I am getting  

S9 Temp


At this temp, there will be some HW errors on the above 80 degrees chip. The other 2 chips will have no errors.
This is basis 13.5TH devices. I have 14TH S9 devices coming later...and it might get hotter. Sigh, I wish it was 13.5 TH devices instead of 14TH.

At this temp, the above 83 degrees
D3 Temp



L3 Temp


I am considering making  a partially covered box around the antminer S9 and duct some air-con in. The box will still allow air intake from outside air but I got a bad feeling it might cause condensation as the humidity is quite high here at around 65-80%. Even if I add in cold air that has been dehumidified, I worry that it might cool the intake air that has higher humidity.
Anyone does that?

Or is it possible to just get the antminer s9 casing and a new control board and put 2 antminer S9 hashboards per S9 casing. That way, it will be cooler. I am guessing the middle board is always the hottest board yes?

[philipma1957]

Dude 70-80 is more then okay  you don't need ac.

you are better off without ac if you stay under 95.

once you go over 95 you need to consider trying to keep it cooler.

my oldest s-9's are in service since June of 2016  they run as high as 101 in the simmer and around 88 in cooler weather.

keeping them dust free is more important then keeping them under 80c

and hw  of 0 or 10 is meaningless

you hw pct is more important if it is under 0.0050  you are fine.

basically you are ocd about your numbers because you can't believe coins are over 6100 usd and that you are whaling!!!

Just relax and enjoy this bro. or sis since I don't know who you really are.

[Sandal_Hat]

Dude 70-80 is more then okay  you don't need ac.

you are better off without ac if you stay under 95.

once you go over 95 you need to consider trying to keep it cooler.

my oldest s-9's are in service since June of 2016  they run as high as 101 in the simmer and around 88 in cooler weather.

keeping them dust free is more important then keeping them under 80c

and hw  of 0 or 10 is meaningless

you hw pct is more important if it is under 0.0050  you are fine.

basically you are ocd about your numbers because you can't believe coins are over 6100 usd and that you are whaling!!!

Just relax and enjoy this bro. or sis since I don't know who you really are.

I see. So, dust free is more important. My HW is now about 481 but only about 0.0003%. I guess it doesnt matter. I guess I should worry more on overheat protection. One of my S9 chips is up to 83 though.
I dont get why I have 2 similar S9 miners and they give different temp numbers.
I am a bro

Thanks for the info man.