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Title: Litecoin mining with R9 280X, too much HW Post by: Ekami on December 28, 2013, 10:49:15 PM Hello,
Could someone help me? I just got my new graphic cards and launched cgminer 3.7.2 with the folowing settings: cgminer.exe --scrypt -o stratum+tcp://litecoinpool.org:8080 -u x.x -p 1 -I 13 My configuration is as follow: Operating System Microsoft Windows 8 Professional 6.2.9200.16581 CPU Type OctalCore AMD FX-8350 Motherboard Name MSI 990FXA-GD65 (MS-7640) DIMM1: G Skill F3-12800CL9-4GBXL 4 GB DDR3-1600 DDR3 SDRAM Video Adapter AMD Radeon R9 200 Series (There is 2 cards not used in crossfire: The cards are: MSI Radeon R9 280X TwinFrozr 3G and Gigabyte GV-R928XOC-3GD But when I launch them I get a hudge amount of HW as shown below: http://img28.imageshack.us/img28/8441/oh3s.png I also tried to run it on Arch linux, I still get the same errors... I have another computer with the exact same configuration excepted that it have 2 msi card instead of 1 msi and 1 gigabyte. Does someone know why I get these errors on both of my computers? Please help, all my 4 card are giving me the same results. Thank you. Title: Re: Litecoin mining with R9 280X, too much HW Post by: gamer4156 on December 29, 2013, 03:13:02 AM Holy fucking hell that is WAY TOO HOT.
Title: Re: Litecoin mining with R9 280X, too much HW Post by: Ekami on December 29, 2013, 03:33:31 AM lol, now it's at 100°... I hope that won't burn the room where I installed them lol
Title: Re: Litecoin mining with R9 280X, too much HW Post by: animekub on December 29, 2013, 03:55:51 AM I think the HW is cuz of the temp. Try lowering voltage to make it run cooler
Title: Re: Litecoin mining with R9 280X, too much HW Post by: zvs on December 29, 2013, 03:58:23 AM if they're like most radeon cards, they'll throttle themselves down at 100oC
which means, you shouldnt be near 100oC Title: Re: Litecoin mining with R9 280X, too much HW Post by: Caper_Barry on December 29, 2013, 03:58:59 AM lol, now it's at 100°... I hope that won't burn the room where I installed them lol Don't let the temp go over 85. Title: Re: Litecoin mining with R9 280X, too much HW Post by: atp1916 on December 29, 2013, 04:00:35 AM You are missing critical settings such as the gpu-thread, thread-concurrency, and -worksize flags.
Try this config: Code: setx GPU_MAX_ALLOC_PERCENT 100 Title: Re: Litecoin mining with R9 280X, too much HW Post by: Equate on December 29, 2013, 04:02:01 AM check the settings, seems something wrong.
Title: Re: Litecoin mining with R9 280X, too much HW Post by: Gamer67 on December 29, 2013, 04:06:48 AM Try this:
setx GPU_MAX_ALLOC_PERCENT 100 cgminer.exe --scrypt -o stratum+tcp://litecoinpool.org:8080 -u x.x -p 2 -I 13 -g 2 --thread-concurrency 8192 -gpu-fan 100 -w 256 If that start up ok then overclock your card core and especially the mem. Something like 1050/1700 using the --gpu-engine and --gpu-memclock flags Once you get your highest clocks set you can also try to raise the thread concurrency to 11200 Alternatively you could try this: setx GPU_MAX_ALLOC_PERCENT 100 cgminer.exe --scrypt -o stratum+tcp://litecoinpool.org:8080 -u x.x -p 2 -I 20 -g 1 --thread-concurrency 22400 -gpu-fan 100 -w 256 Same applies about the overclocking, try to find your highest stable memory clocks. Title: Re: Litecoin mining with R9 280X, too much HW Post by: tokyoghetto on December 29, 2013, 04:09:34 AM are you running open case with risers?
Title: Re: Litecoin mining with R9 280X, too much HW Post by: Ekami on December 29, 2013, 08:36:35 PM Thanks everyone for your replies.
I finally found a solution. The msi card are working well with: cgminer.exe --scrypt -o stratum+tcp://litecoinpool.org:8080 -u x.x -p 1 -I 13 -g 2 -w 256 --thread-concurrency 8192 --shaders 2048 But I still get high temperature, maybe because they are too close from each other, I'm not using risers. I'll try to figure out how to fix this, thanks a lot. Title: Re: Litecoin mining with R9 280X, too much HW Post by: Gamer67 on December 29, 2013, 08:46:04 PM No need to add the -shaders 2048 as the thread concurrency setting does the job. I would also add -gpu-fan 100 to keep the temps as low as possible.
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