An Antminer S5 review by klondike_bar; the loud, affordable miner

[gemstone]

Take a old 120mm fan rip the fan out just leave the frame remount the fan back on and wolla!! your S5 will sound like A s3 even runs cooler to.

I can sleep at night my wife is not beating me over the head lol lol. it worked for me and the best part about it its still the original S5 fan!!!

So you modded a fan shroud and it reduces the noise? Interesting. Do you have DB measurements?

yeah he has wanted me to test it ..  I was happy with the delta's but I should test it with the shroud.  one thing I did was find longer screws.  so the grill is about ½  inch  off the delta fan.

I was getting 55 db and 393gh with my 1 s-5 and said fuck it . it is good enough.  If you find longer screws and space the grill off the delta it does help. somewhere i have a photo of that mod.


here is the s-5 in a 85f garage running with a lot of sp20e's . numbers are good 1290gh  with 99.9922% good and 0.0078% bad  


 and I don't mind the noise as it is in the garage. I suspect the temps are high since we got to 44f today in NJ.

Hello philipma,
for a 85F ambient temp, this looks very impressive. But I remember you have one of those 4000rpm delta and one or two others on that S5...
I would LOVE to get 55db at 1393gh .... I run at stock everything right now with very mixed results:
1.) about 1100gh, fan is at 3240rpm, temp is 48-50C, hw 0.0008%
2.) about 1150gh, fan is at 3600rpm, temp is 48-52C, hw 0.0291%
3.) about 1050gh, fan is at 3960rpm, temp is 55-47C, hw 0.0000%

Don't ask me what batch they are from, all have identical Corsair CM750M's, they are all next to each other. Ambient temp is about 73 in my basement.
(give or take) There are also 10 S1's, 9 S3's and one freaky loud S4)

The 3rd one is the grief, while trying the shroud approach I noticed that the fan blades had damage on the inside, not the grill side, two or three blades had smaller dents and some plastic strands sticking out. It might explain the high pitched whine and noise.

The first two do about 72db and the third one is 78-80db (android app)
I hope that I can get to your levels of overclocking, noise and temps with the vertical positioning and new fans.
(But come to find out that the stock fan is 140cfm, whereas the fans ordered reach 120)

Thanks for sharing your experiences... you have no idea how truly helpful they are.

[opentoe]

These are the specs on the S5 stock fan.


Dimension: 120*120*38mm
Voltage: 12V
Start voltage: ≧8V (Power ON/OFF)
Power consumption: 1600RPM 1.68W / 4000RPM 25.8W
Rated current: DutyCycle 100% @ 2.15A
Air Flow: 4000RPM @ 178.3CFM (Max be 239CFM)
Noise: 4000RPM @ 56.7 dB-A (Measured in a Non-EchoChamber)
Life Expectancy: 40,000 hrs @ 25℃  (May degrade faster at higher temperature)
Connector: 2510-4P

To replace this kind of fan to make the rig more quiet, you need to find a two fans that are either 25mm or 38mm thick, at least 3000 RPM's, have a CFM of 150 or more and a dB noise rating of less then 40 dB. And folks, let me tell you, it is impossible to find. The only thing that comes close is the expensive Noctua NF12-F12 IPPC 3000. 43dB, 109CFM and have to use both. I have been searching for two 120mm x 38mm fans that can push at least 150 CFM, spin up to 3000, have 4 pin PWM control and a dB rating of less than 40 dB. Impossible to find, since most of them have a high noisei dB rating.

So I stuck with the two high priced Noctua's priced at $24 each and each having a 6 year warranty. By all means they aren't silent but much better than anything I can find. Good luck.

[MyRig]

Thank you for sharing the info! 

[philipma1957]

These are the specs on the S5 stock fan.


Dimension: 120*120*38mm
Voltage: 12V
Start voltage: ≧8V (Power ON/OFF)
Power consumption: 1600RPM 1.68W / 4000RPM 25.8W
Rated current: DutyCycle 100% @ 2.15A
Air Flow: 4000RPM @ 178.3CFM (Max be 239CFM)
Noise: 4000RPM @ 56.7 dB-A (Measured in a Non-EchoChamber)
Life Expectancy: 40,000 hrs @ 25℃  (May degrade faster at higher temperature)
Connector: 2510-4P

To replace this kind of fan to make the rig more quiet, you need to find a two fans that are either 25mm or 38mm thick, at least 3000 RPM's, have a CFM of 150 or more and a dB noise rating of less then 40 dB. And folks, let me tell you, it is impossible to find. The only thing that comes close is the expensive Noctua NF12-F12 IPPC 3000. 43dB, 109CFM and have to use both. I have been searching for two 120mm x 38mm fans that can push at least 150 CFM, spin up to 3000, have 4 pin PWM control and a dB rating of less than 40 dB. Impossible to find, since most of them have a high noisei dB rating.

So I stuck with the two high priced Noctua's priced at $24 each and each having a 6 year warranty. By all means they aren't silent but much better than anything I can find. Good luck.

1 silverstone 141 as a pull

and the stock fan at 9 volts as a push works well

[baykan]

want to bring down the noise and the s5 fan do this it helps a lot.



Take a old 120mm fan rip the fan out just leave the frame remount the fan back on and wolla!! your S5 will sound like A s3 even runs cooler to.

I can sleep at night my wife is not beating me over the head lol lol. it worked for me and the best part about it its still the original S5 fan!!!

Dog1965, I have a mechanical engineering diplom, bs. (Though I did not work as a Mechanical Engineer but started IT business with ZX Spectrum 48K computers, and I'm 48 years old now)
I congratulate your idea and appliance.
My S5 is on the way coming with UPS. I hope to get it in 10 more days.
I will first apply your solution and then run the machine.
I will tell the results here later.

I agree to your air direction modification thinking...I'm now looking for a spare appropriate fan. I think the ones who applied your solution hopefully successfull...
Good job.

[baykan]

I have received mine yesterday and .......

It's more than LOUD. I could not believe.
I'm in a small room with two miners at work.
One is a asicminer Tube 800 which I was thinking very noisy after an S3+,
but S5 killed all the records.
My android cell phone shows 75 db when I go next to them. I'm standing up and measuring 1 meter away from.
I do not know how accurate my measurement is.

I'll try your solution when I find an appropriate spare fan frame...