Quote from: goodluck0319 on March 27, 2014, 12:17:04 PM

{
"pools" : [
   {
      "url" : "stratum+tcp://gpu-stratum.hashfever.com:3262",
      "user" : "xxxxxxxx",
      "pass" : "xxxxxxx"
   }

]
,
"intensity" : "18",
"worksize" : "256",
"lookup-gap" : "2",
"thread-concurrency" : "20481,14208",
"gpu-memclock" : "1250,1465",
"gpu-vddc" : "1.25,1.20",
"gpu-engine" : "950,1100",
"auto-fan" : true,
"auto-gpu" : true,
"expiry" : "30",
"gpu-threads" : "1",
"scan-time" : "1",
"device" : "0,1",
"scrypt-vert" : true
}

I don't know if this is correct. first gpu is 290 and second is 270x

how do I add this : "gpu-vddc" : "1.240" without conflict the 290 gpu. do I just add it?

Just add the gpu-vddc command like any other. For example, if your default voltage was 1.25 for the 290 and 1.20 for the 270x, then the command would be "gpu-vddc" : "1.25,1.20", Of course, you enter whatever voltage you want to.