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Author Topic: Hacking KNC Neptune / Jupiter / Titan miners back to life. Why not?  (Read 72550 times)
CNoteFan
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October 06, 2017, 03:25:03 PM
 #761

Stock voltage should be fine. At this point there is not a lot to be gained banging on the Neptunes. Hash rates and such are gotten by using the APIs from BFGMiner.

C


Thanks again.  Yeah, I realize they aren't really profitable.  A friend brought them over and it's difficult to watch specialized hardware sit idle.   I have some BFL's, Antminer S1's & S3's, over 80 Gridseeds and some KNC Neptunes.  

Have you ever made any instructional/educational videos regarding electronics?  

You must not pay for power =P

Hah.  I didn't say I am running them.  Actually, I only run the Gridseeds in scrypt only mode.  The Neptunes are new to me so I'm interested for the time being.  I've actually been able to get them to mine at a tiny profit. 350Gh/s @ 205 watts.  I'm contemplating having them available for rent on miningrigrentals.  If I leave no mining pool set up for myself, then they will sit there idle drawing about 25 watts and when someone rents it, it will generate some heat for the house during the winter.

I can't believe those Neptunes don't have anything in between the DCDC's and the aluminum 'E' plate (whatever they call that huge chunk of aluminum used to keep the heatsink in place.)  On the Titans, in videos I've seen, there is a heat sink transfer pad.


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Xeon_Xeon
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December 08, 2017, 09:48:16 PM
 #762

I just plugged the numbers into whattomine.com for my KNC Jupiter with the current numbers.................holy crap it's profitable!!   Grin

Per    Pool Fee    Est. Rewards    Rev. BTC    Rev. $    Cost    Profit
Hour    0.000000    0.000004    0.000004    $0.07    $0.06    $0.01
Day            0.000000    0.000103    0.000103    $1.58    $1.46    $0.13
Week    0.000000    0.000719    0.000719    $11.07    $10.19    $0.89
Month    0.000000    0.003082    0.003082    $47.46    $43.65    $3.81
Year            0.000000    0.037500    0.037500    $577.46    $531.08    $46.38
lightfoot
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December 08, 2017, 11:45:17 PM
 #763

Holy crap. Are neptunes positive?
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December 09, 2017, 01:20:29 AM
 #764

Hello , do any know if there is an easy fix for cubes that makes the titans just restart ? got 2 of those "funny" cubes
also got some strange cubes showing low current on some dies and some cubes with completly dead dies is there a easy fix for this ?
i was stupid enough to buy 12 titans and payed way to much for them :/
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December 09, 2017, 01:37:42 AM
 #765

Holy crap. Are neptunes positive?


Power cost in $ + watt per Gh stays same + Bitcoin moon = Yup, Neptunes are indeed profitable again! Grin
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December 09, 2017, 01:58:00 AM
 #766

    Holy crap. Are neptunes positive?



    3300 GH/s and 1950 watts , is this correct?

     I just picked the first google search result that I found.


    Soooo plugging in those numbers on whattomine.com for Bitcoin.



    Per              Pool Fee    Est. Rewards    Rev. BTC             Rev. $                   Cost             Profit
    Hour    0.000000    0.000022    0.000022    $0.34                  $0.19    $0.15
    Day            0.000000    0.000522    0.000522    $8.15                  $4.54    $3.61
    Week    0.000000    0.003651    0.003651    $57.07               $ 31.78    $25.29
    Month    0.000000    0.015648    0.015648    $244.58              $136.19    $108.39
    Year            0.000000    0.190383    0.190383    $2,975.69    $1,656.95    $1,318.74  
     

    Most definitely.  Shocked

    Still does not want to format correctly, but the info is easy to see.


    Damn as long as the price keeps going up before the next difficulty increase its $$$$$ time for alot of the older miners,!!

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    lightfoot
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    December 09, 2017, 02:53:47 AM
     #767

    Well, looks like I am back in Neptune business. Maybe I'll fix all of those oddball boards I have here and bring them up again. They do work well with water cooling blocks.....
    lightfoot
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    December 09, 2017, 02:56:21 AM
     #768

    Hello , do any know if there is an easy fix for cubes that makes the titans just restart ? got 2 of those "funny" cubes
    also got some strange cubes showing low current on some dies and some cubes with completly dead dies is there a easy fix for this ?
    i was stupid enough to buy 12 titans and payed way to much for them :/
    Depends. If you have an ohm meter can you check resistance between pins 4, 6, and 8 to ground (pin 10). If pin 6 is low (under 100 ohms) the cube is bad. If pin 8 is low I can fix that, likewise if pin 4 is low.

    Remember: Don't run them too hard to burn the plugs and always power down before removing any ribbon cable anywhere. And with litecoin going up in value you never know.....
    tommy1033
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    December 09, 2017, 03:23:24 AM
     #769

    Hello , do any know if there is an easy fix for cubes that makes the titans just restart ? got 2 of those "funny" cubes
    also got some strange cubes showing low current on some dies and some cubes with completly dead dies is there a easy fix for this ?
    i was stupid enough to buy 12 titans and payed way to much for them :/
    Depends. If you have an ohm meter can you check resistance between pins 4, 6, and 8 to ground (pin 10). If pin 6 is low (under 100 ohms) the cube is bad. If pin 8 is low I can fix that, likewise if pin 4 is low.

    Remember: Don't run them too hard to burn the plugs and always power down before removing any ribbon cable anywhere. And with litecoin going up in value you never know.....
    ill take a look on that tomorrow , how much do you take for each board repair  ?
    looks like they are dead only getting about 230 ohm resistance between 4 and 10.
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