Hi, I have been using multiminer since last night, but I noticed that the miner 'plays' with my engine clock and memclock :
Date , GPU Core Clock [MHz] , GPU Memory Clock [MHz] , GPU Temperature [°C] , Fan Speed (%) [%] , Fan Speed (RPM) [RPM] , GPU Load [%] , Memory Usage (Dedicated) [MB] , Memory Usage (Dynamic) [MB] , VDDC [V] , VDDC Current [A] , VDDC Power [W]
2014-04-17 22:24:00 , 1025.0 , 1500.0 , 64.0 , 48 , 2242 , 98 , 201 , 55 , 1.169 , 18.6 , 21.6 ,
2014-04-17 22:24:01 , 1025.0 , 1500.0 , 64.0 , 48 , 2224 , 98 , 203 , 55 , 1.169 , 18.4 , 21.4 ,
2014-04-17 22:24:02 , 1025.0 , 1500.0 , 63.0 , 48 , 2219 , 98 , 207 , 55 , 1.169 , 18.2 , 21.2 ,
2014-04-17 22:24:03 , 870.0 , 1500.0 , 63.0 , 48 , 2220 , 0 , 207 , 55 , 1.169 , 15.0 , 21.2 ,
2014-04-17 22:24:04 , 300.0 , 150.0 , 60.0 , 43 , 2089 , 0 , 207 , 55 , 0.894 , 4.3 , 3.8 ,
2014-04-17 22:24:05 , 300.0 , 150.0 , 60.0 , 43 , 2029 , 0 , 207 , 55 , 0.887 , 4.3 , 4.0 ,
2014-04-17 22:24:06 , 501.0 , 1500.0 , 59.0 , 43 , 2008 , 0 , 213 , 55 , 0.906 , 7.2 , 6.7 ,
2014-04-17 22:24:07 , 300.0 , 150.0 , 59.0 , 43 , 2006 , 0 , 217 , 55 , 0.894 , 4.3 , 3.6 ,
2014-04-17 22:24:08 , 300.0 , 150.0 , 58.0 , 43 , 2007 , 0 , 221 , 55 , 0.894 , 4.1 , 3.6 ,
2014-04-17 22:24:09 , 300.0 , 150.0 , 58.0 , 43 , 2000 , 7 , 231 , 55 , 0.894 , 4.9 , 4.5 ,
You can see that it goes from 1025Ghz (my settings) to as low as 300Ghz, then eventually goes back to 1025 again later. How come? It changes voltage, and hashrate aswell. Does it come from Multiminer or the miner itself? (BFGminer). I wanted to use cgminer as I know this one but is it possible to make Multiminer use it? I guess it is but I didn't find how to do it...
Sorry for my bad english.
Do you have an Intensity set in the scrypt argument line under Advanced Miner Settings?
Also, make sure the "Set Dynamic Intensity based on computer use" checkbox is NOT selected and under Advanced Application Settings.
If you are entering your own Thread concurrency and/or Core/Memclock settings then make sure the checkbox next to "Automatically Set GPU mining environment variables" is NOT cecked.
Sometimes I get better performance using the "auto-tune" feature but that all varies with the hardware.
What GPU are using?
Hope that helps.
Yes I have an Intensity set up, and when I am not using the computer it's on 13. The clock modification happens in the middle of nothing actually, I am not even at home I just check the log and see it after. However the "Automatically Set GPU mining environment" was checked, so I unchecked it, will see how it goes thanks.
Also, I noticed that the miner is supposed to mine the most profitable coin on Coinchoose, but most of the time when I force the miner to mine dogecoin for instance, the profit in USD is higher, regardless of the profitability on Coinchoose. How come? It seems that these days the coin that profits the most is DogeCoin (~$2,7/day according to multiminer) whilst the miner usually mines GoldCoin (~$1,4/day) or BottleCaps (~$0,8/day) because on Coinchoose they have better profitability. I don't understand that. Multiminer should always mine DogeCoin as it brings more USD shouldn't it?
