MannyEric (OP)
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April 10, 2013, 11:36:10 AM Last edit: May 16, 2013, 05:18:25 PM by MannyEric |
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Hi. It's my first multigpu rig so I'm having some issues with cgminer doing scrypt.
Here's the output. It seems to me that the hashrate is spreaded along both GPUs and actually only 1 GPU is working? Total hashrate is 658.5 kh/s as would be OK for 1 GPU. As you can see the 2nd GPU has low clocks and low voltage, although in cgminer the configuration is the same for both. I'm suspecting lack of power, I have SeaSonic M12II series Modular 650W 85+ PSU. Maybe it's not enough? If this is the case how much should i have? MoBo is MSI 970A-G46 and CPU Sempron 145, have 2 4GB DDR3 dimms. Both GPUs are Sapphire HD7970 OC. Any help would be much appreciated. Please have a look on the cgminer conf as well below. Thank you.
GPU 0: 329.4 / 329.4 Kh/s | A:2 R:0 HW:0 U:1.94/m I:13 65.0 C F: 70% (2638 RPM) E: 950 MHz M: 1425 Mhz V: 1.175V A: 99% P: 0% Last initialised: [2013-04-10 14:16:29] Intensity: 13 Thread 0: 164.7 Kh/s Enabled ALIVE Thread 1: 164.5 Kh/s Enabled ALIVE
GPU 1: 330.4 / 329.1 Kh/s | A:6 R:1 HW:0 U:5.82/m I:13 32.0 C F: 70% (2724 RPM) E: 300 MHz M: 150 Mhz V: 0.850V A: 0% P: 0% Last initialised: [2013-04-10 14:16:29] Intensity: 13 Thread 2: 165.0 Kh/s Enabled ALIVE Thread 3: 165.5 Kh/s Enabled ALIVE
"intensity" : "13,13", "vectors" : "1,1", "worksize" : "256,256", "kernel" : "scrypt,scrypt", "lookup-gap" : "0,0", "thread-concurrency" : "8192,8192", "shaders" : "2048,2048", "gpu-engine" : "950,950", "gpu-fan" : "0-70,0-70", "gpu-memclock" : "1425,1425", "gpu-memdiff" : "0,0", "gpu-powertune" : "0,0", "gpu-vddc" : "0.000,0.000", "temp-cutoff" : "95,95", "temp-overheat" : "85,85", "temp-target" : "75,75", "api-port" : "4028", "expiry" : "120", "gpu-dyninterval" : "7", "gpu-platform" : "0", "gpu-threads" : "2", "hotplug" : "5", "log" : "5", "no-pool-disable" : true, "queue" : "1", "scan-time" : "60", "scrypt" : true, "temp-hysteresis" : "3", "shares" : "0", "kernel-path" : "/usr/local/bin" }
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