toptekk
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Activity: 112
Merit: 10
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April 07, 2015, 06:38:33 PM |
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That's why i think they were doing some thing far more evil then what they tell us lol . they don't care about little stuff unless they want to make a example of you, it's when you start hitting that 10 K a day mark then they wonder Wtf is he/she or they doing. 10 K any place in US is a automatic flag till you show were you got it etc. i know that from two family member both got IRS letter with in day asking them to explain unexplained insurance claims the insurance reported wrong which was fixed with a Phone call and Fax .
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It's not that critical here. Just like every thing else if your not trading in high volumes the gov. could not care less. When Btc goes back up or is backed by larger firms is when we need to hide.
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TrevorS
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April 07, 2015, 07:53:18 PM
Last edit: April 07, 2015, 09:45:05 PM by TrevorS |
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Three Silverstone FHP141 fans arrived Thursday and I took before and after temp and fan readings. The temp reduction I'm seeing on three S5 (w/ S3 push fans) is only on the order of 1C at 312.5MHz, but may be more noticeable at 350. Will look at that more when the next batch of three fans arrive. Between 312.5 and 350MHz, both fans appear to pick up roughly 120rpm, approximate norm being 3240/1560 -- current 350MHz temps being 56/54 and 54/53, aprox ambient measuring 72F(22.2C) a couple feet from the miner intakes. My max temp reduction results from running the same fan (S3) for both push and pull, but that hugely increases the noise. S3 push only gives just the sound of blowing air, adding the FHP141 reduces the air noise, but adds a distinct hum. I got the following stable results @312.5MHz (one individual S5): test case temp fan
S3 push only 58/52 3240
plus FHP141 57/55 3240/1680
S3 push/pull 54/53 3000/2880
Subjectively, the quietest case is the S3/FHP141 combo, the by far loudest is the S3/S3 combo, though the stock S5 is easily louder yet. I'd say the S3 push only works pretty well (depending on clock and ambient temp) and the FHP141 may be worth trying, but there is some hum. PS -- Appears the Silverstone FHP141 is indeed a PWM fan, wasn't at all clear to me from the manufacturer's description. My final three Silverstone fans arrived today, and so I repeated the S3 fan push and added FHP141 tests, but this time the ambient is much warmer (86F/30C) and I included 350MHz. The measurements are again stable and it's again one individual S5. 312.5MHz
test case temp fan
S3 push only 63/57 3480
plus FHP141 60/60 3360/1800
350MHz
test case temp fan
S3 push only 66/59 3600
plus FHP141 63/63 3360/1920
At the higher ambient temp (86F/30C Vs 72F/22.2C) there's no question that the FHP141 does a respectable job, but I'd say a push/pull pair of S3 fans or similar would be the way to go for overclocking. |
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kaltar
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April 07, 2015, 08:01:32 PM |
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Anyone know where i can get some S5 Data extension cable, i can't seem to be able to find any anywhere.
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Tupsu
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Activity: 1218
Merit: 1003
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April 07, 2015, 09:07:16 PM |
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Anyone know where i can get some S5 Data extension cable, i can't seem to be able to find any anywhere.
For 16 pin or 18 pin connector ? |
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J4bberwock
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April 07, 2015, 09:31:53 PM |
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Anyone know where i can get some S5 Data extension cable, i can't seem to be able to find any anywhere.
For 16 pin or 18 pin connector ? The connector look very similar to this: http://www.te.com/catalog/bin/TE.Connect?C=17259&M=PPROP&P=10008,115303,99330&BML=&LG=1&PG=1&IDS=479054,479055,479056,479057,479058,479059,479060,479039,479040,479049,479050,479051,479052,479053,479024,479038,479061,479062,479063,479064&N=20but there is no "dual row" ones with locking interface |
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opentoe
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Activity: 1274
Merit: 1000
Personal text my ass....
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April 07, 2015, 10:58:40 PM |
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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!
Read the thread man. I must have said the only real world workable dual fan solution (if you don't have any S3 fans) is to buy two of these fans in a push / pull. Must have mentioned it over 10 times. For one fan setup you need at LEAST a 38mm push with at least 185-200 CFM, max 4000 RPM's. For a dual fan setup you would need two 25+ mm in a push pull with at LEAST 110-125 CFM, max 3000 RPM's. If the ambient temps increase considerably on the dual fan setup some kind of air conditioning will or may be needed. Most other fans cannot take the pressure or keep up with the demand then the Noctua's, hence the 6 year warranty. They are also IP52 rated, which can take dripping water and some spray and dust won't even bother it. The motor is completely sealed of course. Have fun!!! i know about the noctua's they are nice fans.. but nobody has answered my question.. maybe you can.. what about this fan as pull with stock fan as push but clocked down with a pwm controller http://www.newegg.com/Product/Product.aspx?Item=N82E16835220056id prob clock the stock fan to right at 3000 rpm.. or even see what it settles at with the pull fan. I doubt it would work. The fan is too large, how would you get all that air to funnel into a 120mm space when the fan is 140mm? |
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opentoe
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Activity: 1274
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Personal text my ass....
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April 07, 2015, 11:02:32 PM
Last edit: April 07, 2015, 11:22:08 PM by opentoe |
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Is not better than two expensive Noctua 3000rpm PWM fans, two cheaper 3000rpm without RPM?
For example I am using Scythe Ultra Kaze 3000rpm (133,6CFM), and it costs 2,5 times less than Noctua.
These look pretty good if they are truly PWM. Do you notice the fan speed changes? EDIT: I think this fan is just a plain old 3 pin and not PWM. So it will run 3000 all the time and be noisy as heck with two of them running. |
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opentoe
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Personal text my ass....
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April 07, 2015, 11:07:59 PM |
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 I have two Delta fans in a push pull configuration. SO MUCH QUIETER. Awesome. What fan models? |
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Unacceptable
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Activity: 2212
Merit: 1001
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April 07, 2015, 11:09:23 PM |
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Be sure to check your wire size (at the breaker,remove your panel cover),it makes alot of difference. 14AWG can't handle as much as 12AWG,most older homes (10 years or more) have 12AWG.Newer homes (less than 10 years) got cheaped out with 14AWG (mine's one of them)  I keep my 14AWG 15 amp circuits at 1200 watts or less,I noticed the wires (in my attic I have access to all wires) were getting warm with 1400 watts,at 1200 I felt no heat on them  |
"If you run into an asshole in the morning, you ran into an asshole. If you run into assholes all day long, you are the asshole." -Raylan Givens Got GOXXED ?? https://www.youtube.com/watch?v=9KiqRpPiJAU&feature=youtu.be"An ASIC being late is perfectly normal, predictable, and legal..."Hashfast & BFL slogan  |
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opentoe
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Personal text my ass....
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April 07, 2015, 11:20:54 PM |
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The Noctua 120mm's work ok too. So why even bother spending more money on the size adapters....unless the 140's are that much quiter, but I doubt they would be. |
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Darthswan
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April 08, 2015, 12:23:05 AM |
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I have two Delta fans in a push pull configuration. SO MUCH QUIETER. Awesome. What fan models? Delta AFB1212SHE-PWM 2 of them in a push/pull. they work great. $20 a piece. Way quieter than stock. |
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Biodom
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April 08, 2015, 12:29:31 AM |
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>snip image<
I have two Delta fans in a push pull configuration. SO MUCH QUIETER.
Awesome. What fan models? Delta AFB1212SHE-PWM 2 of them in a push/pull. they work great. $20 a piece. Way quieter than stock. Even a single Delta AFB1212SH works in push, which makes it a $10-11/miner mod and it is quieter than 1212SHE and way quieter than stock. |
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aarons6
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April 08, 2015, 10:24:50 AM |
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revelacaogr
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2009 Alea iacta est
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April 08, 2015, 10:48:37 AM |
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revelacaogr
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2009 Alea iacta est
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April 08, 2015, 10:51:40 AM |
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sueche
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April 08, 2015, 03:52:17 PM |
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Asked this earlier but didn't see an answer;
Is there a way to change the mining speed/overclocking/fan speed via a cronjob like I do with my SP20 boxes?
Short answer - no. Is there a long answer? :p There just no crontab at all in firmware, and no space for additional software, i don't understand why they used 256 mb flash , and left for /config only 20 mb, so we are limited to 20 mb firmware size. And you simply can't control fan speed, also there is no possibility to change voltage, you must raise/lower input voltage to overclock/downclock. I'm kinda expert in s5  Maybe i can rebuild u-boot and change partition layout, but i need beaglebone black for experiments, and don't have money to buy them  Any idea how to change the timezone for S5 ? |
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dmwardjr
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Technical Analyst/Trader
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April 08, 2015, 05:58:02 PM |
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Asked this earlier but didn't see an answer;
Is there a way to change the mining speed/overclocking/fan speed via a cronjob like I do with my SP20 boxes?
Short answer - no. Is there a long answer? :p There just no crontab at all in firmware, and no space for additional software, i don't understand why they used 256 mb flash , and left for /config only 20 mb, so we are limited to 20 mb firmware size. And you simply can't control fan speed, also there is no possibility to change voltage, you must raise/lower input voltage to overclock/downclock. I'm kinda expert in s5 Maybe i can rebuild u-boot and change partition layout, but i need beaglebone black for experiments, and don't have money to buy them Any idea how to change the timezone for S5 ? I looked for a way to change it as well. I did not see any way to do it. |
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