S-5 review. It has arrived some info is in!

[sk8erskid420]

I had a thought, now please remember this is just a thought and probably not to practical(cost efficient) for the home miner, but what about a waterblock cooler, something similar to the C1. If the heat is dissipated by the top of the chips then this should be an easy application, perhaps not by us, but perhaps bitmain in future releases. By that I mean it wouldn't be worth the cost for a home miner to buy all the required parts to watercool. if they could machine a waterblock that could intake/exhaust the coolant at the top of the block, perhaps intake at the top back and exhaust at the top front or something like that, then one could still stack sideways, cool extremely efficiently, and run a full loop system that could cool perhaps up to 3-5 units per radiator(haven't done the math, just spitballing). In theory I would guess that at stock speeds, this would keep the chips running under temp compared to a fan setup. Also as a bonus I would think a single fan used as a booster cooler to cool the interior of the unit would be an idea. Just remember this is only an idea that popped in my head so please do comment, I'd love to hear what others think of this, Good or bad. I'll prob post this in a few S5 threads to get some extra feedback.

[Rabinovitch]

cheap design, not good
S5 sux

IMHO the main mistake is to use such an semi-open case. It should be just like S3 has, also with two fans to provide more intensive and directed airflow...

[philipma1957]

these 2 fans are 10 on ebay-delta + 16.95 on amazon -silverstone = 27  

1 s-5 = 480 in the paypal group buy + 27 fans = 507

1 sp20E= 500 group buy.  must buy 2  = 500  

    at that price point  and running both at 1100 the sp20e is 7 dollars less  and at 1100gh uses less power per gh and appears stronger built .  

so a quick  set of opinions is the s-5 needs a price drop.

the sp20e is better made  has  case that is easy to stack.

the sp20e has a better gui

I need to test more but if I was buying  more  pieces and I was to pick the s-5  I think 400usd counting shipping is closer to a competitive price.

 

If I was to run an 100 unit setup I would not pick the s-5 due to case weakness.

The sides are plastic no bottom or top.  These are like an s-1 with plastic sides.  A big setup would be a P.I.T.A  compared to the s-3  or the sp20E .

 stacking these s-5's is not easy  you will need to take some care.




I ran over night at freq 337  power was 563 watts at the kwatt meter  my 2 replacement fans are hanging  there db wise 60 db at  1 meter.  the 3 pin runs at 3000 the silverstone is at 1800 rpm it has a max of 2000 rpm. the noise with this setup is better then the noise a sp20 makes if you drop fans to setting 20 and mine at 1100.

563/1108 = .508 watt per gh.  very few errors

results below>>>>>>>>>> I am bumping to freq 343

[Dexter770221]

Nice best share. 1 year ago this would solve a block.

[redsn0w]

Nice review @philipma1957 , thanks for your work !

[philipma1957]

  Just got freq  343 working

it is at 1099gh   and 1 HW error after 20 minutes.   so far  going over and staying over 1100gh is not that easy to do.

  I think I will change the pool setting for diff to d=1000

more photos



http://imageshack.com/a/img673/4320/6Dz888.jpg  1 meter sound

http://imageshack.com/a/img912/754/4aibfu.jpg      1 meter sound

http://imageshack.com/a/img661/1351/2DdOI9.jpg  power at freq 343

http://imageshack.com/a/img911/3345/k6OFmm.jpg   left fan pushes  = 3 pin 38mm delta using pipe cleaners right fan 4 pin pwm silverstone pulls

http://imageshack.com/a/img661/4452/7wx1jM.jpg   silverstone uses the stock screws and grill

http://imageshack.com/a/img537/6272/SUlyKN.jpg    delta I added a grill attached with pipe cleaners and the evga pcie ties
 
http://imageshack.com/a/img911/5107/Ulg1Ky.jpg  1 meter sound again and it settled at  60.4


I will try to go to 1155 and 590 watts  but so far I seem to flatten at 1100 gh and 565 watts.  freq 331 337 and 343  all give near 1100gh with 562 watts

this is with a newly opened   evga 1300 g2 and 4 cables.

[fontline]

bitmain wrote its possible to run s5 at 0.2w/ghs (less hashrate) with a 9v psu. is there a way to test it?

[jelin1984]

What the size of fan
To replace with better one??

[philipma1957]

bitmain wrote its possible to run s5 at 0.2w/ghs (less hashrate) with a 9v psu. is there a way to test it?

yes but I won't be able to try it for a while.  this psu


http://www.ebay.com/itm/400-Watt-Adj-Volts-9-15-DC-36-Amp-HAM-CB-Power-Supply-Real-USA-MegaWatt-/180777043955?pt=US_Radio_Comm_Device_Power_Supplies&hash=item2a1726c7f3



can provide 360 watts 24/7/365   so with it lowered to 9 or 10 volts and freq lowered to 200 or 225 on an s-5 you should get low numbers.

the problem is this psu is around 80% efficient   so if you use a 92 efficient evga 1300 g2  and 12/12 volts  or a 80 percent efficient megawatt 9/12 volts  

you make out with the 9/12  volts ratio and lose out with the 80/92 efficient  psu ratio


simple math is 9/12 x 100 = 75  then  92 /80 x 75 = 86.25       still better then the 100  but not as good as 75

once you add in the price of the psu vs an atx you have in house it kind of does not pay.

I have talked with a forum member about  a down volt  'pot' device   this would be about 87 % vs the 80%  of the megawatt psu.

he may  Post about this device in a week or so.

@ jelin1984

stock fan is 120mm by 38mm  .   my push delta is 120mm by 38mm  my pull  silverstone is 140mm by 38mm  but has  120 mm fan holes.

my fans kept the temps at 60 and 57 with freq  350  my watts  were at .5 and hash at 1154 hw were good

so I now went to  freq 356  will get back  later.

[Biodom]

when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only?  so the silverstone fans go full speed all the time?

what is the CFM of the silverstone?  Volts and amp rating?

I say this because bitmain uses off the shelf chinese brand server fans.  If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.

no the silverstone is 4 pin pwm it is the pull fan.

I will order this as the push

http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

these two as push pull should work

I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.

[philipma1957]

when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only?  so the silverstone fans go full speed all the time?

what is the CFM of the silverstone?  Volts and amp rating?

I say this because bitmain uses off the shelf chinese brand server fans.  If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.

no the silverstone is 4 pin pwm it is the pull fan.

I will order this as the push

http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

these two as push pull should work

I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.

Well I know the noctua fits on the push side under the ethernet jack. the silverstone is a combo 120/140 mm fan and only fits on one side.
I had the silverstone in house I know it is a good powerful quiet 4 pin pwm fan.  this is why I use it.

I will  look for a ebay link on the 3 pin delta

http://www.ebay.com/itm/Delta-AFB1212VHE-120mm-x-38mm-Very-High-Speed-Fan-3-Pin-Connector-148-CFM-NEW-/121150995989?pt=US_Computer_Case_Fans&hash=item1c35297e15

[Biodom]

when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only?  so the silverstone fans go full speed all the time?

what is the CFM of the silverstone?  Volts and amp rating?

I say this because bitmain uses off the shelf chinese brand server fans.  If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.

no the silverstone is 4 pin pwm it is the pull fan.

I will order this as the push

http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

these two as push pull should work

I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.

Well I know the noctua fits on the push side under the ethernet jack. the silverstone is a combo 120/140 mm fan and only fits on one side.
I had the silverstone in house I know it is a good powerful quiet 4 pin pwm fan.  this is why I use it.

I will  look for a ebay link on the 3 pin delta

http://www.ebay.com/itm/Delta-AFB1212VHE-120mm-x-38mm-Very-High-Speed-Fan-3-Pin-Connector-148-CFM-NEW-/121150995989?pt=US_Computer_Case_Fans&hash=item1c35297e15

Thanks, Phil. I am trying to price in various options. The delta fan is ~$18 with shipping (ebay), noctua (also for push) is $24.5, but the fan looks awesome.
i found another good pull fan (1500 pwm): also Noctua ($18.99) on Amazon
http://www.amazon.com/Bearing-Cooling-NF-P14r-redux-1500-PWM/dp/B00KF7QO2G
I see the advantage there in size-Silverstone is 140/120, so although it has 120mm spaced holes, it will stick out (that's why is covers the ethernet port, i assume)
Two Noctuas together $43.5 with free shipping since it is above $35 (or prime).

[philipma1957]

when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only?  so the silverstone fans go full speed all the time?

what is the CFM of the silverstone?  Volts and amp rating?

I say this because bitmain uses off the shelf chinese brand server fans.  If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.

no the silverstone is 4 pin pwm it is the pull fan.

I will order this as the push

http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

these two as push pull should work

I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.

Well I know the noctua fits on the push side under the ethernet jack. the silverstone is a combo 120/140 mm fan and only fits on one side.
I had the silverstone in house I know it is a good powerful quiet 4 pin pwm fan.  this is why I use it.

I will  look for a ebay link on the 3 pin delta

http://www.ebay.com/itm/Delta-AFB1212VHE-120mm-x-38mm-Very-High-Speed-Fan-3-Pin-Connector-148-CFM-NEW-/121150995989?pt=US_Computer_Case_Fans&hash=item1c35297e15

Thanks, Phil. I am trying to price in various options. The delta fan is ~$18 with shipping (ebay), noctua (also for push) is $24.5, but the fan looks awesome.
i found another good pull fan (1500 pwm): also Noctua ($18.99) on Amazon
http://www.amazon.com/Bearing-Cooling-NF-P14r-redux-1500-PWM/dp/B00KF7QO2G
I see the advantage there in size-Silverstone is 140/120, so although it has 120mm spaced holes, it will stick out (that's why is covers the ethernet port, i assume)
Two Noctuas together $43.5 with free shipping since it is above $35 (or prime).

I got the second silverstone to fit I used a nail clipper to remove a little bit  of the shroud and it fits  under the ethernet jack. I am boosted to  freq  356 and getting 1202gh using about 595 watts still under .5 watts per gh.  but 2 silverstones cost me 34.52 with tax and shipping from amazon.

 a 35 dollar mod is not cheap. but the meter reads 60-61 db and a lower pitch.  temps are okay and hw's are 0 at 30 minutes.

I think the silverstones won't keep up with freq's much higher then  356 .  those noctua 1500 pwm's do not move enough air for this machine.
the two silverstones are giving me good sound not nasty and temps are still kind of okay my room is 80 f / 28c  board temps temps are 62 c  to 67c



 

[cryptoglance]

philipma1957, are the Two silverstone fans on the high performance mode or quiet mode?

[IYFTech]

Philipma,

Do you know where the cgminer conf file is? I can't find it anywhere - seems to be a different file system to Bitmains usual setup. I want to change the --queue setting, it's set at 8192!!

Cheers.

Hello：
      You can modify 'user_setting' file in /config directory to change --queue setting.

Yes! Excellent - thank you  

Can you also tell me if your cgminer fork is set to submit stales or not? If not, can I add the option in the same config file as where the queue setting is?
P2pool can use stale shares to find good blocks, so is throwing away good shares if cgminer is not submitting them.

Thanks again.

[philipma1957]

philipma1957, are the Two silverstone fans on the high performance mode or quiet mode?

high setting as  quiet is not cool enough . here is how I fit the second fan

I use a nail clipper  to remove a little of the fan shroud



then plug in the ethernet cord which seals the hole most air goes into the
heatsink since the cord sealed the shroud cut

[davecoin]

Phil, what fan speed on the SP20E matches the noise of an S5?

[MrTeal]

Phil, do you happen to have an oscilloscope that can do FFT? It'd be interesting to do a spectral decomposition of the noise from the SP20, S5 and Silverstone fans.

[Biodom]

For those who want to mod, the delta fan on ebay is $11.51+6.11 shipping, so ~$18
Noctua $24.5, silverstone $16.99 (both at Amazon), but they don't have silverstone in stock (I did not get immediate shipping confirm).
I think that noctua, silverstone and delta all could be used as push (with some clipping of silverstone as phil has done-to fit in the ethernet connection).

However, I wonder what would be the best choice of a pull fan?
This fan provides up to 76.8 CFM (is this enough?):
http://www.amazon.com/Cooler-Master-Blade-120-Radiators/dp/B0030DL37I
If 76.8 CFM is not enough for a pull fan, then what would be? Silverstone is ~170CFM-possible overkill for a pull fan?
thanks

[Biodom]

Phil, do you happen to have an oscilloscope that can do FFT? It'd be interesting to do a spectral decomposition of the noise from the SP20, S5 and Silverstone fans.

that would be awesome because some anti-noise setup would be theoretically possible.
http://en.wikipedia.org/wiki/Active_noise_control