I did not notice you were using guiminer scrypt, your settings are some magical juju for real. I did not underclock yet, but my hash up to just under 700khash/s!

So I flashed the 280x that did not improve my hash, but GUIminer did improve my hashrate up to 692khs

nice ,so it seems to just be a limitation of the card itself - pity ill just send it back no big deal.

I edited your config it got me to 600Khs

"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "8192",
"shaders" : "2048",
"gpu-engine" : "1150",
"gpu-fan" : "",
"gpu-memclock" : "1880",
"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" : "0",
"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"

black

I have tried the higher thread concurrency to no avail and at one point my mem clock was at 1880 lol

Hello everyone, i've been racking my brain over this the past few days. My Asus Matrix Platinum 7970 will not has of about 570Khs, no amount of OC, tried different drivers, uninstalled then reinstalled several times, tried different versions of cgminer to no avail, ive looked here there and everywhere searching for configs and everyone seems to be getting at least 660 and I cannot even get that.

cgminer.exe --scrypt -o stratum+tcp://162.243.215.221:3333 -u xxxx -p xxxxx -I 13 --worksize 256  <- this gets me 560Khs
cgminer.exe --scrypt -o stratum+tcp://162.243.215.221:3333 -u xxxx -p xxxxx -I 13 --thread-concurrency 8192 --gpu-powertune 20 --shaders 2048 <- this does nothign for me

anything over I 13 slows me down, g2 slows my card down, im not really sure what is going on

I cannot for the life of me connect to the network to download the blockchain, my settings are correct, maybe my port?
listen=1
daemon=1
server=1
rpcuser=have name   
rpcpassword=have password
rpcport=12378
rpcallowip=*
rpcconnect=127.0.0.1

So I finally have mounted my miners to the heat sink and thus mounted a fan as well (modified for USB). It is in a very ugly state at the moment as I have no materials to create the casing The unit is capable of cooling 4 Erupters at a time.

https://skydrive.live.com/redir?resid=9E539C5766A5C317!12403&authkey=!AOdjBbQSMuLPTjQ&v=3
http://sdrv.ms/1d8xP7u
http://sdrv.ms/1d8xTnO - the dog hair clump that I apparently got on the unit..that's free of charge

Im still gonna do it out of curiosity and because I cannot leave well enough alone 

I think your missing the point, its about longevity, a fan is not enough to cool it down and make it not hot to the touch.but if no one else wants one that's fine but I would rather a positive response than a negative one.

Hello everyone,

  Over the past few months I have been researching and reading and testing. I noticed some ways to cool down the Erupters with small clip on heatsinks and I've also seen the sand down the backside of the unit and rubber band it to a heatsink. So after all these ideas I have come up with a few solutions on which I will be releasing photos soon. These are just for the extension of the erupters life and not to catch anything on fire. it will be usb powered and I might put a molex with a controller for the fan. When the unit is complete it will be a thermal solution for up to 4 erupters, it will come with its own usb hub or usb extension cables, a fully enclosed housing for optimal cooling of the erupters. It will also come with thermal compound. I am at the point I just need the material to build the case and a way to power the fan. as it stands now the heat from the erupters is now taken in by the heatsink. I have a second unit going into testing as soon as the first unit is completed. The second unit will take a bit longer to complete as it is an entire usb hub enclosure device. I am also trying to keep costs down so if and when anyone else wants one it won't be too much.

hello everyone, I'm glad to be part of the Bitcoin community. I am not new to Bitcoin but I am new to mining. Right now I am running an HD 5830 ( I know what your thinking, weak card for the same money you could have gotten something better) those points are true, except i traded my Nvidia GPU for the AMD, and I am looking to purchase an ASIC mining rig. I have been coming to the forum for all my info especially  when I switched from the Nvidia gpu to the AMD there was a bit more work to get the AMD to mine successfully. Now however I am interested in getting an ASIC miner and have set up a business fund page with gofundme.com. There are rewards for different levels of contribution but I thought if i was going to get the contributions the most likely place would be from the btc community. So if I do have supporters of my fund please visit http://www.gofundme.com/3su3h8 or you can donate in bitcoin. if you are going to donate in bicoin please send me a PM and how much bitcoin you sent so I can give you the appropriate lvl reward.