Antminer S5 board temperature difference between boards

notlist3d

legendary

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Quote from: mavericklm on January 16, 2016, 10:30:58 PM

11c difference on s5!

made in china!!! Grin

As long as higher one is accurate enough to shut off when it goes over 80c it should be fine. I think that is the main thing is the system being able to shutdown if to hot.

I know I had a S3 I think it was where 1 had temp other did not even have it. I checked with support they where happy with just 1 as it should shut down the system if to hot.

So perfect sensors... probley not. But accurate enough to shutdown if it's going to hot yes it should be.

mavericklm

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11c difference on s5!

made in china!!! Grin

Biodom

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i have one S7 that has up to ~13-15C difference between boards.
Don't know why and how, just reporting what sensors say.

QuintLeo

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Most of my S5s had a 2-3 degree difference, but one (the one that runs the BEST oddly enough) shows 8-9 degrees all the time.

I suspect part of it is just "how the sensor got positioned", some of it is "how well the heat sinks are conducting heat from the chips", and the rest is just normal manufacuting tolerances in the parts.

toptek

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also try re pasting the boards and clean out the heat sink give it a good cleaning if you haven't, i had that happen once i took it a part and cleaned it up real good and reapplied the themo paste , that S5 had a 2 or 3 degree difference after i cleaned it up etc. .

and here is a S5 i kept and fixed this is not the same one i talked about above.. This one had a 4 to 5 degree difference after i fixed it . so i took it part once more did a really good cleaning re pasted etc..

now it runs better then it did when i bought it with one blade and replaced a blade etc .I'M also using S1 heat sinks they seem to work better then S5 heat sinks. and it also seems to run better over clocked then at defaults.

mavericklm

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It's the crappy sensors that bitmain is using. Placed like crap on the middle of the blades! and the crappy open design for the air cooling Grin

I’ve seen even 10 degrees difference! but it was because one of the psu was feeding poorly it's blade, 1psu/1blade

dsh

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Nice. Thanks for your replies Cheesy

tutorialevideo

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Don`t invest more than you can afford to lose

Quote from: dsh on January 09, 2016, 01:47:05 AM

Hello,

Just wondering why might there be a large difference between the two boards in the S5?

One board shows 53C, the other 59C.

There is a box fan sitting in front of the machine pushing from front to back. And there are two 120mm fans underneath the unit pushing air upward.

Cheers!

My 40 antminer s5 are running the same with 4-5 C diference ... there is no problem

VirosaGITS

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Activity: 1302

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Quote from: dsh on January 09, 2016, 01:47:05 AM

Hello,

Just wondering why might there be a large difference between the two boards in the S5?

One board shows 53C, the other 59C.

There is a box fan sitting in front of the machine pushing from front to back. And there are two 120mm fans underneath the unit pushing air upward.

Cheers!

Its normal. The blades are not mirror, so i'm guessing the sensor is a bit further back for one board considering the flow of the air. What really helped for me for noise and cooling was using 2 fans. I also used a box fan blowing air through at some point.

dsh

newbie

Activity: 46

Merit: 0

Hello,

Just wondering why might there be a large difference between the two boards in the S5?

One board shows 53C, the other 59C.

There is a box fan sitting in front of the machine pushing from front to back. And there are two 120mm fans underneath the unit pushing air upward.

Cheers!

https://i.imgur.com/dRyS74y.png

Topic: Antminer S5 board temperature difference between boards (Read 1153 times)