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    Advice - Added 2 extra cards and getting a LOWER hashrate ???

    Mining
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    • B
      bilabonic Banned last edited by

      Hi All

      I have been mining for a couple of weeks and been tweaking the GPU clock up to get more mH. I had x3 Powercolor GPU’s @around 730/740kH each.

      I have added another x2 cards a and reinstalled windows 7 x64 and i only get 700kH per card !!!

      I had to lower the clock speed a lot !!!

      Mb- MSI Z77 Gd65
      Windows 7 X6
      Catalyst 13.1 GPU Drivers Techpowerup - (allows more thean x4 GPU’s to be used [b]**latest drivers do not**[/b])
      v2.8 of the Catalyst App SDK
      8G ram
      64Gb ssd Drive
      1000 EVGA Gold supllying x3 GPU’s ONLY on powered riser
      750w Bronze supplying Mb and 2 cards only

      Old script at 740kH

      “intensity” : “13,13,13”,
      “vectors” : “1,1,1”,
      “worksize” : “256,256,256”,
      “kernel” : “scrypt,scrypt,scrypt”,
      “lookup-gap” : “0,0,0”,
      “thread-concurrency” : “8192,8192,8192”,
      “shaders” : “0,0,0”,
      “gpu-engine” : “1030-1030,1050-1050,1050-1050”,
      “gpu-fan” : “30-75,30-75,30-75”,
      “gpu-memclock” : “1500,1500,1500”,
      “gpu-memdiff” : “0,0,0”,
      “gpu-powertune” : “-20,-20,-20”,
      “gpu-vddc” : “0.000,0.000,0.000”,
      “temp-cutoff” : “90,90,90”,
      “temp-overheat” : “85,85,85”,
      “temp-target” : “72,72,72”,
      “api-mcast-port” : “4028”,
      “api-port” : “4028”,
      “auto-fan” : true,
      “expiry” : “120”,
      “gpu-dyninterval” : “7”,
      “gpu-platform” : “0”,
      “gpu-threads” : “2”,
      “hotplug” : “5”,
      “log” : “5”,
      “no-pool-disable” : true,
      “queue” : “1”,
      “scan-time” : “30”,
      “scrypt” : true,
      “temp-hysteresis” : “3”,
      “shares” : “0”,
      “kernel-path” : “/usr/local/bin”

      New script with x5 cards @ 700kH (card with monitor only getting 670/680Kh max)

      “intensity” : “13,13,13,13,13”,
      “vectors” : “1,1,1,1,1”,
      “worksize” : “256,256,256,256,256”,
      “kernel” : “scrypt,scrypt,scrypt,scrypt,scrypt”,
      “lookup-gap” : “0,0,0,0,0”,
      “thread-concurrency” : “8192,8192,8192,8192,8192”,
      “shaders” : “0,0,0,0,0”,
      “gpu-engine” : “1015-1015,1015-1015,1000-1000,1015-1015,1015-1015”,
      “gpu-fan” : “30-75,30-75,30-75,30-75,30-75”,
      “gpu-memclock” : “1500,1500,1500,1500,1500”,
      “gpu-memdiff” : “0,0,0,0,0”,
      “gpu-powertune” : “-20,-20,-20,-20,-20”,
      “gpu-vddc” : “0.000,0.000,0.000,0.000,0.000”,
      “temp-cutoff” : “90,90,90,90,90”,
      “temp-overheat” : “85,85,85,85,85”,
      “temp-target” : “75,75,75,75,75”,
      “api-mcast-port” : “4028”,
      “api-port” : “4028”,
      “auto-fan” : true,
      “expiry” : “120”,
      “gpu-dyninterval” : “7”,
      “gpu-platform” : “0”,
      “gpu-threads” : “2”,
      “hotplug” : “5”,
      “log” : “5”,
      “no-pool-disable” : true,
      “queue” : “1”,
      “scan-time” : “30”,
      “scrypt” : true,
      “temp-hysteresis” : “3”,
      “shares” : “0”,
      “kernel-path” : “/usr/local/bin”

      Any ideas ??

      i have tried my best altering config but no luck ??? All voltages are stock…

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      • R
        RD65 last edited by

        Are these all 7950s? Based on the hashing these look like this GPU.

        1 Reply Last reply Reply Quote 0
        • M
          mattmct last edited by

          I’m having a similar issue.

          I have been running 2 x 7950’s at 650Kh/s for weeks, then I add a 280x into the mix, and my original two drop down to 600kh/s. Im in BAMT. Still trying to work it out.

          Good luck

          1 Reply Last reply Reply Quote 0
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