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Topic: Best 7950 settings? (Read 1144 times)

full member
Activity: 235
Merit: 100
January 02, 2014, 05:34:56 PM
#6
I used to run my 4 msi twin frozr 7950 cards at 1050/1250 getting 655 each card at 1.044v then I dropped them to 1000/1250 and only lost 5khashes each card but saved on power.. so win for me.
sr. member
Activity: 347
Merit: 251
There can be only one!
January 02, 2014, 08:38:56 AM
#5
1. there is a compiled scrypt binary that increases 7950 speeds by 20KH/s somewhere in these forums -- track it down.
2. TC of 20000 is what I use - optimal with above binary
3. Intensity 20 seems steads
4. 1100/1500 was giving me the best hash rates but was unstable.. Switched to 1075/1250 and the hash rates dropped an acceptable amount for the stability and energy savings provided.  Hashing at about 640kh/s.
hero member
Activity: 546
Merit: 500
hm
January 02, 2014, 08:22:24 AM
#4
Does it make a difference which 7950 you have? I bought a few from Sapphire. Thanks Smiley
newbie
Activity: 25
Merit: 0
January 02, 2014, 07:18:24 AM
#3
full member
Activity: 168
Merit: 100
I'll have a steak sandwich and a... steak sandwich
January 02, 2014, 07:15:10 AM
#2
I don't have any 7950's so I can't say what the expected hashrates are, but just read through ckolivas notes on optimizing GPU and follow his steps:

https://github.com/ckolivas/cgminer/blob/v3.7.2/SCRYPT-README

The only thing I can note about your settings is that you have a very low temperature target. I believe the safe limit as set by AMD is 95 degrees. Personally, I try to target around 80.
hero member
Activity: 812
Merit: 1000
January 02, 2014, 05:33:30 AM
#1
Ok so I recently got a cheap asus 7950 and I was wondering if anyone has any good cgminer settings I could use? At the moment I am getting 600 KH/s (Not counting the %5 rejects) with this: cgminer --scrypt -I 20 -g 1 -w 256 --thread-concurrency 24000 --gpu-engine 1100 --gpu-memclock 1250 --gpu-vddc 1.087 --temp-target 65 --auto-fan -o stratum+tcp:/.... -u x -p x

Also what would the expected hashrates be?
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