ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH

[cryptichermit]

It took a long time getting here but I'm really happy with my first S7.  After 2.5 days of running in the Toomim Bros data center, the speeds are holding steady in spite of really low temps in the DC, and HW errors have been 0.0018% the whole time.  I am keeping the fan speed control on auto for now as running at ~40C does not appear to be an issue with hash rate on this box.  I have 3 more coming online today or tomorrow so I'm dying to see how they perform.  My order/confirm date was 9/6/2015/

I've got 7 of 17 units tested and running.  The remainder are waiting on a PSU delivery that comes in today.
From my experience, I also don't see a correlation between increased temps and increased hashrate.
In fact I'm seeing the opposite, although its rather negligible.  Units running 50-55c are producing 4825, while units 45-50c are running 4850.
Whoever said these were quiet machines, well I'd have to disagree.  These things sound like a jet engine.  So only benefit to fan speed reduction I see is decreased volume.
at 30% fan speed they are tolerable.  In your case having them at a data center, I'd leave the fan at auto.

[pj40]

So has anyone said how the S7's sound related to the S5's?  I sold off 3 S5's to upgrade to a new B3 S7, and want to know what I should be looking forward to...

[philipma1957]

The s-7 is better then the s-5

And depending on your setup there are mufflers that work.

[cryptichermit]

The s-7 is better then the s-5

And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

[aurel57]

So has anyone said how the S7's sound related to the S5's?  I sold off 3 S5's to upgrade to a new B3 S7, and want to know what I should be looking forward to...

The S7 is louder than a S5 with the fans at stock speed but if you turn them down to 40% they are as quite or less than my S5

[clgrissom3]

It took a long time getting here but I'm really happy with my first S7.  After 2.5 days of running in the Toomim Bros data center, the speeds are holding steady in spite of really low temps in the DC, and HW errors have been 0.0018% the whole time.  I am keeping the fan speed control on auto for now as running at ~40C does not appear to be an issue with hash rate on this box.  I have 3 more coming online today or tomorrow so I'm dying to see how they perform.  My order/confirm date was 9/6/2015/

I've got 7 of 17 units tested and running.  The remainder are waiting on a PSU delivery that comes in today.
From my experience, I also don't see a correlation between increased temps and increased hashrate.
In fact I'm seeing the opposite, although its rather negligible.  Units running 50-55c are producing 4825, while units 45-50c are running 4850.
Whoever said these were quiet machines, well I'd have to disagree.  These things sound like a jet engine.  So only benefit to fan speed reduction I see is decreased volume.
at 30% fan speed they are tolerable.  In your case having them at a data center, I'd leave the fan at auto.

Haha! Yes, from where I sit my S7s are at 0.000 decibels!

[dogie]

The s-7 is better then the s-5 And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

That doesn't really make sense. Your S7 = 2x fans and S5s = 3x fans, identical fans.

[pj40]

The s-7 is better then the s-5 And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

That doesn't really make sense. Your S7 = 2x fans and S5s = 3x fans, identical fans.

Right, and since I'll only be pulling 1200 Watts vs 1800 Watts, I would assume it would be the sound of 2 S5's, or thereabouts.

[philipma1957]

The s-7 is better then the s-5

And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

I say everyone has a different pair of ears.  The pitch of the s-7 may sound worse to you.


 But the s-7 is far easier to manage sound wise then the s-5. 

[Biodom]

The s-7 is better then the s-5

And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

I say everyone has a different pair of ears.  The pitch of the s-7 may sound worse to you.


 But the s-7 is far easier to manage sound wise then the s-5. 

In any case, it might be unhealthy to be close to multiple S7 (he had 7 running) without any kind of hearing protection.

[cryptichermit]

The s-7 is better then the s-5

And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

I say everyone has a different pair of ears.  The pitch of the s-7 may sound worse to you.


 But the s-7 is far easier to manage sound wise then the s-5. 

Just for curiosity sake, I took a decibel meter app (iphone) and tested.

3 x s5's generates decibel ratings of 72 at full hash.
1 x s7 generates decibel ratings of 83 at full hash - auto fan.
1 x s7 generates decibel ratings of 74 at full hash - fan at 30%

[wolfen]

The s-7 is better then the s-5

And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

here is a link for sound
https://www.youtube.com/watch?v=5UFGEXyduSA

[cryptichermit]

The s-7 is better then the s-5 And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

That doesn't really make sense. Your S7 = 2x fans and S5s = 3x fans, identical fans.

Sound is not merely relative to the fan speed and rating.
You also must factor into existence the flow of the air and the noise generated from turbulence and or vibration.
So you have environmental factors to think about.

S5 - has lower restriction of airflow.
The fin design of the heatinks allows for air to pass through with less resistance and turbulence.

S7 - has compact heatsink design and completely enclosed aluminum housing.  This creates a lot of turbulence and resistance.

Just like water.  What generates more noise, a river without rocks/rapids or one with rocks/rapids?

[p3yot33at3r]

Sound is not merely relative to the fan speed and rating.
You also must factor into existence the flow of the air and the noise generated from turbulence and or vibration.
So you have environmental factors to think about.

S5 - has lower restriction of airflow.
The fin design of the heatinks allows for air to pass through with less resistance and turbulence.

S7 - has compact heatsink design and completely enclosed aluminum housing.  This creates a lot of turbulence and resistance.

Just like water.  What generates more noise, a river without rocks/rapids or one with rocks/rapids?

Excellent description!  

[Meuh6879]

what is the diameter of the S7 fan ?
i want use a duct adaptor for 2x 200mm fan (high flow, high pressure, low noise). 

[VirosaGITS]

what is the diameter of the S7 fan ?
i want use a duct adaptor for 2x 200mm fan (high flow, high pressure, low noise). 

I am pretty sure they are standard 120mm frames so you just need to figure out how to square down your adaptor to properly push the air through the heatsink. It should help with the fan's noise, but not so much with the air turbulence noise.

Phil really made a difference with the noise with mufflers, could be something worth looking into as well.

[jaipagare]

Hello All,

I wish to mine Digibyte DGB with  ANTMINER S7  is the possible?

[bbOOmm]

The s-7 is better then the s-5

And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

I say everyone has a different pair of ears.  The pitch of the s-7 may sound worse to you.


 But the s-7 is far easier to manage sound wise then the s-5. 

Just for curiosity sake, I took a decibel meter app (iphone) and tested.

3 x s5's generates decibel ratings of 72 at full hash.
1 x s7 generates decibel ratings of 83 at full hash - auto fan.
1 x s7 generates decibel ratings of 74 at full hash - fan at 30%

LOL .... You should hear the stack of jet engines I have...

fan cooled stuffz in the rack:
4 Antminer S2's fans on auto, but at 100%
2 Antminer S5's fans on auto. but typically around 75%-90%
6 Delta Electronics DPS-1200FB power supplies
2 Dell Poweredge 850 servers
1 Dell Poweredge 1950 server
1 APC 3000 UPS
1 Brocade fiber switch

when I'm in my workshop at my desk, I'm 3ft from the rack....

The Antminers create the air moving rush sound.... but the power supplies create the high pitch turbine sound. I have yet to take my Db meter and audio spectrum analyzer and measure the ruckus that rack makes. My hearing is already going ( too many damn kerbbOOmm's near me in the past ) so the noise isn't sooo bad ... for me anyways.

[OgNasty]

The s-7 is better then the s-5 And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

That doesn't really make sense. Your S7 = 2x fans and S5s = 3x fans, identical fans.

Sound is not merely relative to the fan speed and rating.
You also must factor into existence the flow of the air and the noise generated from turbulence and or vibration.
So you have environmental factors to think about.

S5 - has lower restriction of airflow.
The fin design of the heatinks allows for air to pass through with less resistance and turbulence.

S7 - has compact heatsink design and completely enclosed aluminum housing.  This creates a lot of turbulence and resistance.

Just like water.  What generates more noise, a river without rocks/rapids or one with rocks/rapids?

Great analogy, but not applicable here.  The S7 is hands down significantly louder than S5s.  Shocked anyone who has owned them both could have a different opinion.  I would go as far as to say my S7 is louder at 60% than when I had multiple S5s running at 100%...  That being said, the S7 stays significantly cooler and is obviously a better design.

[MCHouston]

The s-7 is better then the s-5 And depending on your setup there are mufflers that work.

I disagree.
To me 1 x S7 is much louder than 3 x S5's.  Even with fan speed reduction to 30%.

That doesn't really make sense. Your S7 = 2x fans and S5s = 3x fans, identical fans.

Sound is not merely relative to the fan speed and rating.
You also must factor into existence the flow of the air and the noise generated from turbulence and or vibration.
So you have environmental factors to think about.

S5 - has lower restriction of airflow.
The fin design of the heatinks allows for air to pass through with less resistance and turbulence.

S7 - has compact heatsink design and completely enclosed aluminum housing.  This creates a lot of turbulence and resistance.

Just like water.  What generates more noise, a river without rocks/rapids or one with rocks/rapids?

Keep in mind not all S5 are the same.  I have units with 4 different types of heat sinks.  So it is important to know when compare which models people have.

1. The standard curved fin
2. The new ones like on the S7
3. Some CNC'd flat ones simliar to #1 but no curves
4. I forgot but I am pretty sure I received 4 different kinds from Bitmain