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Title: HELP Mining with xfx r9 280x tdfd Post by: figi.tvar.odvisnik on February 06, 2014, 05:45:03 PM I've an r9 280x for mining scrypt based coins..
I use windows 7 ultimate 64bit Quote color 02 setx GPU_MAX_ALLOC_PERCENT 100 C:\cgminer\cgminer.exe --scrypt -o stratum+tcp://poolurl:port -u username.workername -p password -I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-powertune 20 I get only around 670KH/s but the reported hash values is around 720 Kh/s and I see many people mining @ 800+KH/s with the same card..! How to undervolt it ? I get some box (http://i.snag.gy/MzSQp.jpg).. Is that normal ? Any configurations are settings to get 800+kh/s ? Title: Re: HELP Mining with xfx r9 280x tdfd Post by: CMD7790 on February 07, 2014, 12:50:06 AM If your using the rig while mining the hash rate will be a bit lower.
What are your core/mem speeds? The boxes look like artifacts maybe the clocks are too high. What are your temps for the GPU/VRM? The card might be throttling. What driver version are you using? I have 1 of those cards in one of my rigs. I can only get 700-720 kh/s without the card's VRMs overheating. Title: Re: HELP Mining with xfx r9 280x tdfd Post by: figi.tvar.odvisnik on February 09, 2014, 05:30:23 PM I can't even get 700KH/s! I use default asus GPU tweak settings..!
https://i.imgur.com/udZmiuJ.png https://i.imgur.com/svy0BEd.png https://i.imgur.com/5EOdlcp.png Title: Re: HELP Mining with xfx r9 280x tdfd Post by: CMD7790 on February 11, 2014, 01:45:05 AM what are the other settings you use in cgminer?
My settings: setx GPU_MAX_ALLOC_PERCENT 100 setx GPU_USE_SYNC_OBJECTS 1 -I 13 -g 2 -w 256 --thread-concurrency 8192 --auto-fan --gpu-memclock 1500 --gpu-engine 300-1070 --gpu-powertune -20 --lookup-gap 2 --auto-gpu That gets me 710kh/s I remember seeing some custom .bin files out there for the 7970/280x. They are supposed to get more out of the cards. Title: Re: HELP Mining with xfx r9 280x tdfd Post by: ozkraut on February 11, 2014, 06:06:17 AM what are the other settings you use in cgminer? My settings: setx GPU_MAX_ALLOC_PERCENT 100 setx GPU_USE_SYNC_OBJECTS 1 -I 13 -g 2 -w 256 --thread-concurrency 8192 --auto-fan --gpu-memclock 1500 --gpu-engine 300-1070 --gpu-powertune -20 --lookup-gap 2 --auto-gpu That gets me 710kh/s I remember seeing some custom .bin files out there for the 7970/280x. They are supposed to get more out of the cards. try 8191 with 1065 / 1500 no powertune, no auto gpu. Getting stable 745 to 750 on < 70 ish degrees |
