Antminer S7 running temps

[Jaffster]

Hi all,

I'm new to the forums, so I guess a hello is in order. I've been a long time browser but have always found the answers I'm looking for without having to repeat questions that have already been asked, however......

I've just got my hands on a few S7's, first impressions are fantastic. The hash rates for something that size are incredible, the noise is quite something else though. Fortunately I got divorced a few years back and so don't have anybody to moan about the noise.

ANYWAY, being concious of the neighbours and the heat being generated in the room, I'm curious as to what temperatures your S7's are running at? The ambient temperature in the room is currently about 24c (the bonus being I've not used the heating once this year), with the frequency at 600 the boards are sitting around 55c according to the UI and having only had experience of my s4's which never went above 50c I'm curious as to what temperatures you're getting at the stock frequency and what the ambient temperatures are.

Last summer I had my mobile air conditioning unit keeping the room cool (around 21c) but I'm now concious that these are blasting out some serious heat. I obviously want to run at stock frequency but I also want longevity out of the hardware.

The Antminer website just says that they operate in ambient temperatures of 0c-40c. Other posts on the older chipsets say 60 is a safe limit, others push theirs to 70, what are your experiences?

.... and if this has already been asked just slap me but I have searched and all I can find is recommended ambient temperatures which aren't really useful.

Cheers

[wikkidtt]

All of mine mine the best between 50-60c

[VirosaGITS]

You would of had to sift through tons of pages on the main S7 boards and probably should posted your question there if you didnt find. But anyways. I'd keep them at 58-65 if i were you and dump the heat strait outside. Super easy to do, just point them at a box fan in a window or use a vinyl tube to outside or to your central heating if you need the heat.

My S7 arent really noisy, you really dont need to leave the fan running full blast.

[philipma1957]

manually set fan to 55%  check temps see if under 63c

if under 63 c temps

manually set fan to 50% check temps see if under 63c

if under 63 c  manually set fan to 45% check temps see if under 63 s



heat control  and sound control  is easy  buy this


http://www.lowes.com/pd_481270-85334-DEI-1225-6___?productId=50401798&pl=1&Ntt=7+inch+flex+duct


cut to 12 feet

put miner inside it one foot deep  then point other end out a window

[generalt]

I just got my batch 10 today and it's far from ideal to say the least.  Running it at the default 700mhz in a 72 degree F ambient temperature room at 100% fan my temps are up to about 77C.  I dropped it down to 650mhz and now it hashes at 4.4th and a mere 74C.  On the plus side it's got really low hardware errors. 

[VirosaGITS]

I just got my batch 10 today and it's far from ideal to say the least.  Running it at the default 700mhz in a 72 degree F ambient temperature room at 100% fan my temps are up to about 77C.  I dropped it down to 650mhz and now it hashes at 4.4th and a mere 74C.  On the plus side it's got really low hardware errors. 

https://i.imgur.com/34mNy5g.jpg?1

I got more even temps by laying the miner on the side... xD And that sound a bit running hot. Is it bathing in its own heat output? Mine B8 and B9 are a bit cooler, to say the least.

[generalt]

I just got my batch 10 today and it's far from ideal to say the least.  Running it at the default 700mhz in a 72 degree F ambient temperature room at 100% fan my temps are up to about 77C.  I dropped it down to 650mhz and now it hashes at 4.4th and a mere 74C.  On the plus side it's got really low hardware errors.  

https://i.imgur.com/34mNy5g.jpg?1

I got more even temps by laying the miner on the side... xD And that sound a bit running hot. Is it bathing in its own heat output? Mine B8 and B9 are a bit cooler, to say the least.

Thanks I'll try putting it on it's side.  Does it matter if it sits on its left side or right side?  I'd rather not have the larger heat sinks facing down.  I worry about gravity eventually pulling the heat sinks off.

It sits right next to another S7 batch 9 that runs 55 57 60.

[Legacy2005]

could try moving it away from the other miner. i had 4 next to each other and only 1 was showing hot. so i moved it and now its much happier.

could be that the batch 10 is just in an air dead zone. could crack it open and check all the heatsinks/paste perhaps they werent done properly it is a mass produced product after all.

[generalt]

After putting the miner on its left side without moving the position I can say that the temperatures dropped from 77 down to 72 after running for about 2 hours.  Now I left it on its side and swapped the position of the S7 with the one next to it.  It's been running about 10 minutes and the temperature is around 61.  This is all at 650mhz on a batch 10.  The other miner that is now in the "hot spot" is also on it's right side now and still running at 62.  Thanks for the tips VirosaGITS and Legacy2005.

[VirosaGITS]

I just got my batch 10 today and it's far from ideal to say the least.  Running it at the default 700mhz in a 72 degree F ambient temperature room at 100% fan my temps are up to about 77C.  I dropped it down to 650mhz and now it hashes at 4.4th and a mere 74C.  On the plus side it's got really low hardware errors.  

https://i.imgur.com/34mNy5g.jpg?1

I got more even temps by laying the miner on the side... xD And that sound a bit running hot. Is it bathing in its own heat output? Mine B8 and B9 are a bit cooler, to say the least.

Thanks I'll try putting it on it's side.  Does it matter if it sits on its left side or right side?  I'd rather not have the larger heat sinks facing down.  I worry about gravity eventually pulling the heat sinks off.

It sits right next to another S7 batch 9 that runs 55 57 60.

I had not thought of heatsinks falling off over time. From what i understand, unless the unit overheat, the thermal plaster should remain fairly solid? I asked a few times if anyone thought of a downside of doing this and no one ever commented.

But yeah i saw a huge difference by running it on the side. I think i have mine on the left side, i guess i'll have to try right side.

[generalt]

I had not thought of heatsinks falling off over time. From what i understand, unless the unit overheat, the thermal plaster should remain fairly solid? I asked a few times if anyone thought of a downside of doing this and no one ever commented.

But yeah i saw a huge difference by running it on the side. I think i have mine on the left side, i guess i'll have to try right side.

Ack!  I just thought of something.  I look at my miners from the exhaust side so when I say the left side that's looking at it from the exhaust side of the miner.

[Jaffster]

Thanks all for the responses.

It got to the point where I was leaving the windows wide open all day/night which isn't a wise idea considering I live in a town house (fire regulations meaning the windows can't be restricted and so anybody from outside can pull them wide open). This was even with outdoor temperatures of 5-10 degrees celcius through the day.

I bought a mobile air con unit for $400, it's vented straight towards the mining setup and has dropped the room temp from a staggering 30 odd degrees down to a nice 18 degrees. I just need to drill through the wall to properly vent the AC unit and then I can close the windows and the neighbours can stop worrying about the noise coming from my front office room as I'm sure they think I'm some kind of cannabis grower 

They're now hashing at 4.72Th/s and 52/50/49 temps and fan speed set at 50%. With the door closed it's pretty quiet, you can just about hear it from the bedroom and other rooms but nothing at all that's remotely distracting.

Great!

[IITravel01]

My batch 9 underclocked to 600M runs about 65 degrees C with fans at 32% / 3,000 rpm pulling about 1,225watts on 230v.

[notlist3d]

I think this will vary depending on batch.  Considering batch 8+ were using less chips and higher freq..... should be more tempature.

Pre-batch 8 were talking more chips and lesser freq.  I would think less temperature I think that is something to consider. But once you start to talk underclocking I'm sure you can get quieter and less heat.  As some have mentioned.

I just don't mind the noise or heat with my mining area it's kinda a moot point on noise for me.   My fan's are loud but put out a lot of CFM and move some serious air.  So sound has become a moot point ever since I built my mining area.

[fr4nkthetank]

Dont forget to set your fan on manual setting.  dont put 100%.  I run mine at 30%, its relatively quiet and temps are 59-64c.  It is winter outside, so that helps a lot (its my garage heater lol).  dont run above 70 to be safe, but some do.

[cupfish]

When you guys are talking about temperature, youre talking about the temp of the circuits?  Is that the hottest temp anywhere on the unit?

What is the ideal room temperature?

Thanks

[Bla2e]

Wow you really necro-ed an old thread. People still use S7 miners ?

[fr4nkthetank]

Holy crap I saw the last comment below me was today, didnt see the one before was...looooong ago.  Oh well, and yeah ambient temps keep em as low as you can, if its too hot in there you have heat exhaust problems.  S7 is still profitable if you have low power cost, with the bitcoin cash thing and all

[cupfish]

haha thanks for replying!

I wasn't thinking about s7, but just antminer's in general.

With regard to room temperatures, what you stuck a big hose like this one onto the exhaust so that the exhaust air goes directly outside: https://www.lowes.com/pd/IMPERIAL-12-in-x-300-in-Insulated-Polyester-Flexible-Duct/50401798

Then the intake air is at 35C.  Would that be OK?

[leowonderful]

I'd watch out for temps with an intake of 35c, you will want fans full speed at that temperature or overheats can occur. Ducts like these work great and iirc Phil recommends these to lower noise as well.