and still big difference in hashrate?
http://s13.postimg.org/5z6odycav/Untitled.png

uninstalled in safe mode all drivers with Display Driver Uninstaller
installed 13.4 + 2.9 SDK (windows 7 64bit)

using this config

"intensity" : "19",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "21712",
"shaders" : "0",
"gpu-engine" : "1000",
"gpu-fan" : "0-65",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "20",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "1",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"failover-only" : true,
"kernel-path" : "/usr/local/bin"

and after 5 mins freezes whole system?

hi
windows 7 74bit
I just used the driver cd that came with it
where I can see what version it is?

and where I can download this 13.4s + 2.9 SDK ?

I found this one which I am downloading now
AMD-APP-SDK-v2.9-Windows-64.exe
is this the correct one?

however I cannot find 13.4s?

here the current state
to gpu 0 I have the monitor connected, would it be because of this so much lower?
and why is there such a big difference between gpu1 and gpu2?
http://s8.postimg.org/vbx9ncfkl/Untitled.png

ok changed powertune to 20

howverb I see directly already all cards still have different hashrate?

could 1 reason be because on 1 card I have the monitor connected?

is it possible to use the onboard vga for the monitor? and the cards only for mining?
I tried, but cgminer didn't see my cards anymore then?

changed it and currently testing like this

"intensity" : "19",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "21712",
"shaders" : "0",
"gpu-engine" : "1000",
"gpu-fan" : "0-65",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "1",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"failover-only" : true,
"kernel-path" : "/usr/local/bin"

no one?

hi
I have running 3 x sapphire 7950
I tried many configs
I can get it on around 600kh/s but then allways freezes
the fastest a littlebit stable I get it is this

http://s27.postimg.org/f198dv9oz/Untitled.jpg

I currently use this config

]
,
"intensity" : "13,13,13",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "0,0,0",
"thread-concurrency" : "14336,14336,14336",
"shaders" : "0,0,0",
"gpu-engine" : "1020,1020,1020",
"gpu-fan" : "0-65,0-65,0-65",
"gpu-memclock" : "1550,1550,1550",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "75,75,75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "1",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"failover-only" : true,
"kernel-path" : "/usr/local/bin"
}

also 2 cards are way slower?
any ideas?

and block 100000

change -g 2 to -g 1

howmuch ram?

hi
I currently run this

"intensity" : "19,19,19",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "0,0,0",
"thread-concurrency" : "0,0,0",
"shaders" : "0,0,0",
"gpu-engine" : "1080,1080,1080",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "1500,1500,1500",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "65,65,65",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "1",
"gpu-threads" : "1",
"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"
}

now the fans are noisy

I tried removing this line
"gpu-fan" : "0-85,0-85,0-85",

then I believe it should increase the fan when it goes over 65degrees
"temp-target" : "65,65,65",

however that didn't work they went quickly up to 70+ without the fans going any higher?

hi
I have build a rig with 3 x sapphire 7950
all cards have same config
but all 3 cards give diferent kh/s

how is this possible?

I already swapped cards, riser but its allways the same slot that's lower speed
could it be motherboard problem?

http://s13.postimg.org/tm4vthnwn/Untitled.png

"intensity" : "19,19,19",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "0,0,0",
"thread-concurrency" : "0,0,0",
"shaders" : "0,0,0",
"gpu-engine" : "1070,1070,1070",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "1500,1500,1500",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "75,75,75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "1",
"gpu-threads" : "1",
"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"
}

good one is 630 kh/s
and bad one goes quickly down to around 550 kh/s
will try some more things and otherwise I think I will open my own topic
anyway if I will find the solution I let you know

yes I can now confirm
with dummy plug still 1 card lower then other
so what else could be our problem?

ps I changed the cards and its still gpu1 that's slower

I have 2 7950 cards, actually3 but only 2 in this rig while waiting for an extra riser
anyway 1 got 630kh/s
while the other start also at 630kh/s
but then quickly goes down to 550KH/s or something

to 1 I have a monitor connected, to the other nothing
maybe because there is no monitor attached speed goes down?

I am waiting for some dummy plugs to arrive to test it

any way to see which gpu0 and gpu1 is which card?

I have the same card, and the same problem as you
I am also struggling getting it over 500-550

as soon as I set intensity higher as 13 I get hw errors?

yes address is correct checked multiple times
also no reply on email for them?

what you mean with this?

ps now its been 2 days, and still not received in my bter account?