Topic: Finally not loud Antminer S5, very cheap mod :) (Read 11877 times)

its recommended to run around 60 if I recall reading in a manual somewhere

I know that this is an old thread, however
I'm not sure thats a good temp running at stock speeds, I'm running at 400 and have temps at 55 and 59 for the two hash boards
getting a stable no error 1,436th/s average, I do notice the throughput drops to 1260th/s below 50 or above 65 temp, so the sweet spot is around 56-58
Im also running a 2440W dell server supply , with a cheap 120mm exhaust fan on the output, one more thing I noticed my temps run much lower when the miner is sitting on a flat surface with the bottom closed by at least 8 degrees lower

I draw a little circuit to drive 4 fans with one S5 controller. All fans are powered from pci-e connector so controller won't get over-loaded. Pwm is from controller and fan1 gives rpm-reading. Fan 2 is driven with same pwm than fan1. Now I can use 1 controller to drive 4 hashboards and both miners have 2 fans. I'm currently testing how this works with stock fans.

Two weeks ago I needed more heat to the house when temperature went down to -27C outside.
Lady of the house is very sensitive to miner related noise so I needed a lot of damping.
I had one unused S5 and fixed Arctic F12 to inlet side and S1 fan to outlet. F12 is 3 pin fan and miner beebed so outlet fan is connected to fan1 connector and inlet to fan2. Outlet fan 1560rpm inlet 1200, 20% fan percentage, temps 63 and 59C, room temp about +20C at floor.
S5 has miner packing foam at bottom and top is covered with ESD plastic.
Power is from pair of parallel DPS600 server powers adjusted to 11,6V; 46db about 1m up from mainer; 350Mhz 1134Ghs avg 5days from last boot, 0,0256% errors.
Miner is V1.3 it don't like undervolts below 11,3V.
 
540W from wall with 2 x DPS600 maybe one would be enought voltage is adjuted so little.
Edit2: S5 took the same power with one DPS, interesting result these powers work very well together when current share pin is connected.

I sure hope you're underclocking this thing, those two fans aren't gonna keep an S5 cool enough if ambient temps start to get higher.

Best fan!

http://www.enermax.co.uk/fans/twisterstorm/


159 cfm,  38 decibels, 3500 rpm


also, i think the other fans they make are the slickest looking ones i've seen

Noctua NF-F12 IndustrialPPC 3000RPM PWM 120mm High Performance Fan  x 2 ( push-pool )

Conceived for industrial heavy duty applications that require enhanced cooling performance and advanced ingress protection, the NF-F12 industrialPPC (Protected Performance Cooling) is a ruggedised high-speed version of the award-winning retail model. Thanks to the outstanding aerodynamic efficiency of the NF-F12 design and the use of a novel three-phase motor, the industrialPPC version provides superior airflow and pressure capacity while keeping noise levels and power consumption moderate as against comparable high-speed fans. While its fibre-glass reinforced polyamide construction and certified water and dust protection make the NF-F12 industrialPPC suitable for operation in challenging environments, the renowned SSO2 bearing technology guarantees an MTBF of over 150,000hrs. Topped off with Noctua's trusted reliability and six year manufacturer's warranty, the NF-F12 industrialPPC is an ideal choice for highly demanding applications that require superior flow rates and ultimate dependability

Features:
- Based on the award-winning NF-F12 design
- 3000rpm PWM industrialPPC version
- Three-phase motor design
- Fibre-glass reinforced polyamide construction
- Certified IP52 water and dust protection
- Integrated Anti-Vibration Pads
- Six year warranty

Specification:
- Size: 120x120x25 mm
- Connector: 4-pin PWM
- Bearing: SSO2
- Blade Geometry: Heptaperf
- Frame Technology: FocusedFlow
- Rotational Speed (± 10%): 3000 RPM
- Airflow: 109.8 CFM
- Acoustical Noise: 43.5 dB(A)
- Static Pressure: 7.63 mm H2O
- Max. Input Power: 3.6 W
- Max. Input Current   : 0.3 A

JUST PERFECT!


http://www.noctua.at/main.php?show=productview&products_id=80&lng=en

Correct. Molex to 6 x 3 pin. The adapters are around $3 and they don't rev up and down just constant speed.

What do you mean by "6 x 3 pin fan board"? The fans are not powered by the S5 itself?

ya, clueless.

go look the the tear down and see what is and is not covered by the heatsinks and fan...then talk....

Wanted to contriboot.
The stock fan is only good for sending small Craft into low earth orbit.
I'm using 3pin corsair sp120 running full speed off a molex to 6 x 3pin fan board for the push and an af120 @ full speed from the same board. I think the onboard pwm is shit
Now I live in Australia and it's summer so ambient temperature is around 30*c and often up to 40*c and my s5 is running at 55*c just slightly underclocked to keep it there.

Much happier with that.

Temperature from 40 degrees to 60+ degrees can up power consumption by 10+ %

An even cheaper mod would is to trick the temp sensors into lowering fan speed to the lowest range.

chances are we are most likely experiencing this setup with the S5s.
http://cryptomining-blog.com/tag/antminer-s1-thermal-performance/

If it's fun, and it works for you, great. But the mod you suggested is risky, you do acknowledge that? If so, it can't hurt to point that out so that others know what risk they're taking by running at higher temps.

No. I like get btc for free, luckyflop is signature campain.
I put those little money into altcoins so it is form of gamble

I have setup >200 standalone miners, some farms, i got very big experience with variety of miners, chips etc.
Only few of my miners died, coincidentially dragons and ccdesks. I have modded large chunk of my stuff for fun and noise reduction.

If you actually do some 'research', you may find about the Arrhenius equation and the relationship between temperature and failure ratehttp://reliawiki.com/index.php/Arrhenius_Relationship.  Failure rate increases exponentially with temperature (in Kelvin).  As Dogie pointed out, using the maximum specified junction temperature of the ASIC as if it was the ambient temperature and applied to all components is flawed.  I totally agree with Aurel's graphic that you need to get your RMA forms ready (just to be rejected by any sensible supplier who would claim that you operated well outside the specified envelope). 

Looks like the OP is a gambling person, according to his banner...

Cheers

80dba+ stock fan.... running like a mofo...

will go find some other fan tomorrow

It may run at those temps fine now, but higher temps will likely degrade performance over time. That might not have been a big deal before when we were seeing double digit difficulty increases, but difficulty has been relatively flat for a couple months now. I'd underclock like others have suggested ... taking off 100-150Ghs seems worth it to keep it running longer.

 70 c is a bit high.

 50 to 64 c would be a better bet.


 If I ran your fans I would downclock to freq 300-325.

have to say the noise level is good.

^^^^^^^
That's pretty funny. Dogie's guides are for noobs. I never found his guides to be useful, sure they're in high definition and big ass pictures. But, the contents are a bit lacking. Just because someone's popular doesn't mean he's perfect for everyone. I personally don't need big ass pictures, I'd like more info. Big ass pictures don't do anything for me, without proper written guides.