SMOS 1.3 is not very good for the older 7950's. You're better off with SMOS 1.0 with the older CGMiner 3.2.1. SMOS 1.3 works better for the newer R9 series cards. In fact a lot of the newer updates like Kalroth's CGMiner fork and SGMiner tend to like the newer R9 280 and 290 cards. I'd stick with the ancient but working CGMiner versions for the 7950's.
I've got 4 MSI 7950's running between 680 and 710 on SMOS 1.0 with CGminer 3.2.1 using the undervolted .962 bios and Lantis' scrypt bin files:
Thanks jedimstr! Interesting, and nice to see that the GPU clock could be pushed even with V < 1000.
Lantis bin file is this one?
https://litecointalk.org/index.php?topic=6058.0Can you share the cgminer.conf file? Or can I ask what you use for intensity & thread-concurrency?
Thanks!
Yup, that was the original thread... you'll still find copies floating about for MSI TFIII's and Sapphire Vapor-X's around.
Here's a partial copy from my cgminer.conf file... minus the pool info:
"intensity" : "19,19,19,19",
"queue" : "1",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "24000",
"api-listen" : true,
"api-network" : true,
"api-port" : "4028",
"expiry" : "1",
"gpu-engine" : "1130,1090,1130,1110",
"gpu-memclock" : "1250",
"gpu-powertune" : "20",
"gpu-fan" : "85",
"log" : "5",
"no-pool-disable" : true,
"scan-time" : "1",
"scrypt" : true,
"kernel-path" : "/usr/local/bin",
"temp-target" : "80,80,80,80",
"temp-cutoff" : "95,95,95,95",
"temp-hysteresis" : "3"
The two threads method you posted got me approximately 50Khs SLOWER on average than my regular setup that has been stable for months. So I went back to my old backup and chugging along nicely.
I think you have some more tweaking to do
Back to renting out again, just like yesterday and the past days before, too bad renting prices on betarigs.com are dropping also.
