Advice - Added 2 extra cards and getting a LOWER hashrate ???
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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 onlyOld 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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Are these all 7950s? Based on the hashing these look like this GPU.
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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