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Hashing Speeds

Discussion in 'Mining' started by admin, Mar 5, 2014.

  1. Sub-Ether

    Sub-Ether Well-known Member

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    Well it is winter! use a big case with loads of fans drilled into the cases, I can undervolt the R9 290 triX to -37 millivolts before it crashes as long as I don't open any more windows, the X79 mobo is stressed-something is overheating but it just does 2 cards.
     
  2. Sub-Ether

    Sub-Ether Well-known Member

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    You are 1 megahash more than me on your R9 280X, I bought the crabby XFX version which I highly do NOT recommend, slower(little OC), runs hot and it will not let you adjust the core voltages, (they took the voltage regulator off the board for god sakes, there is a gaping gap so no BIOS upgrade works)
     
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  3. tuppydog

    tuppydog Member

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    Yes Sub, I will look for deals on ebay for used R9 280x Amd sapphires. I just bought one for 200 dollars, they are not cheap. I've seen them used now for 350-400 dollars. Right now, all the Gpus are getting harder to fine due to the resurgence of GPU mining and low supply...Amazon is a great place to find good quality used GPUs also, talk soon...!!!
     
  4. tuppydog

    tuppydog Member

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    Another thing to add to this conversation is that I have found by buying used 7970 Sapphire (1000 MHz Core) AMD GPUs are one of the best bangs for the buck, and they last forever. You can pick them up for around $160 dollars (used and sometimes new), but I find they are hassle free they are a great starter card for anyone thinking of getting into mining. I use AMD driver amd-catalyst-15.7.1-with-dotnet45-win7-64bit. They are not as good as the R9 series (which are very expensive right now and hard to fine good used cheap ones), but if you want to build an economical miner, I can list all the parts out. I have a video I am working on at the present time on how to put a system together (not using the btc h81 board though Sub lol) if anyone is interested. Maybe I will put it up on dailymotion if I can find some time here this weekend....Tup[​IMG]
     
  5. rightaboutnow

    rightaboutnow New Member

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    not seeing any difference using sgminer 5.1 or 5.1.1 does it only optimize certain cards? I have 270x hash @ 3.888 using both versions AMd 15.201 drivers
     
  6. e46btc

    e46btc New Member

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    Really it is. At least for 7970 hashrate increased from 5.5 to 6.2 MH/s in my case.
     
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  7. Sub-Ether

    Sub-Ether Well-known Member

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    Have you tried both the Pitcairn and the Tahiti versions? Make sure to rename and delete properly, they should give different speeds ?
     
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  8. tuppydog

    tuppydog Member

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    I remember I had some trouble to with renaming the files. You may want to be sure you do as Sub above me said. It took a few install for me to get this to work....

     
  9. tuppydog

    tuppydog Member

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    I didn't realize you had a X79 (ASUS?) board. That was the first MOBO I used for mining, that is a very good board (and very expensive) I bought one on ebay (but with a i7 included). I can only get 4 gpus to work on it, I can't get 5 for some reason?? Is there a trick to or jumper for that?....


     
  10. rightaboutnow

    rightaboutnow New Member

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    what settings are people using with AMD cards? I did rename the bin file for pitcairn. seems i get the same speeds as 5.1.0 with R9 270x

    here is the settings i used, any tips?

    sgminer.exe -I 19 -w 64 -g 2 --thread-concurrency 12192 --gpu-engine 1000 --gpu-memclock 950
     
  11. tuppydog

    tuppydog Member

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    Try this:
    {
    "pools" : [
    {
    "url" : "stratum+tcp://mine.xpool.ca:3000",
    "user" : "Xxxxxxxxxxxxx",
    "pass" : "x"
    }
    ]
    ,

    "xintensity" : "1000",
    "shaders" : "0",
    "thread-concurrency" : "0",
    "nfactor" : "10",
    "device" : "0,1,2",
    "vector" : "1",
    "worksize" : "64",
    "kernel" : "darkcoin-mod",
    "no-extranonce" : true,
    "lookup-gap" : "2",
    "gpu-threads" : "1"

    }

    then turn into a .conf file call it "sgminer" and try that (change device to however many gpus you have).....

     
  12. rightaboutnow

    rightaboutnow New Member

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    NICE Video, so how old is your daughter? Truly the next generation of blockchain miners.
     
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  13. rightaboutnow

    rightaboutnow New Member

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    Hmm actually slower now 3.666Mhs per R9 270x

    why does everyone recommend xintensity now?
     
  14. tuppydog

    tuppydog Member

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    I did play around with xintensity, you may want to vary that lower. Or, put in the normal "Intensity" : "18" I'm not sure, those are some things you can try...
     
  15. tuppydog

    tuppydog Member

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    She is 8 years old, always busy lol...