Title: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: ethought on May 14, 2013, 06:45:45 AM Hi all -
Got my first HD7970 GPU today and after plugging it in and running litecoin BAMT I am only getting on average 100Kh/s. I have tried just about every configuration I can find and still it always averages at around 100Kh/s. Using an old Dell (Optiplex GX280) with P4 3.4Ghz cpu, 1Gb ram, no hdd, no other cards. Could the stock dell power supply be the problem? Tried: --intensity 13 --worksize 256 -g 1 --shaders 2048 --thread-concurrency 8192 --auto-fan --gpu-memclock 1650 --gpu-engine 1110 --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1044 --gpu-memclock 1500 --shaders 2048 --thread-concurrency 8192 -I 14 -g 2 -w 256 --worksize 256 -v 1 -I 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --shaders 2048 --temp-target 75 --temp-overheat 80 --temp-cutoff 85 --auto-fan --gpu-fan 0-80 All produce the same result around 100Kh/s Any ideas? Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: ethought on May 14, 2013, 08:43:52 AM no one?
Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: ethought on May 14, 2013, 08:44:42 AM AMDOverdriveCtrl -i0
root@bamt-miner:/opt/miners/cgminer# INF: Nr. of Adapters: 4 INF: Adapter index: 0, active, ID:146809272, AMD Radeon HD 7900 Series INF: Adapter index: 1, inact., ID:146809272, AMD Radeon HD 7900 Series INF: Adapter index: 2, inact., ID:146809272, AMD Radeon HD 7900 Series INF: Adapter index: 3, inact., ID:146809272, AMD Radeon HD 7900 Series INF: Adapter index 1 choosen. INF: Nr. of Performance Levels: 0 WRN: failed to read the GPU temperature. WRN: failed to get fan speed information. WRN: failed to read current fan speed. WRN: failed to get Overdrive parameters. WRN: failed to read current GPU activity. WRN: failed to read default GPU/Memory clocks. INF: Nr. of Displays to check 6 INF: Color temp disp(4) : INF: current 6500K default 6500K INF: min 4000K max 10000K step 100K INF: Sunrise:5:0 INF: Sunset:20:36 Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: phorensic on May 14, 2013, 09:15:45 AM Two thoughts. 1) You only have 1GB of RAM and that matters with scrypt. 2) Your AMD OpenCL/drivers are probably not ideal.
Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: zxc003 on May 14, 2013, 09:38:43 AM ethought, if BIOS of your card is below version 015.025.* update it(search in techpowerup (http://www.techpowerup.com/vgabios/index.php?architecture=ATI&manufacturer=&model=HD+7970&interface=&memType=&memSize=), e.g. Sapphire HD 7970 3072 MB BIOS(DUAL-X OC Boost) (http://www.techpowerup.com/vgabios/129658/sapphire-hd7970-3072-120926.html). Then overclok it to 1025/1500 and try again.
Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: ethought on May 14, 2013, 10:23:54 AM Two thoughts. 1) You only have 1GB of RAM and that matters with scrypt. 2) Your AMD OpenCL/drivers are probably not ideal. Thanks - will get some more RAM from a friend tonight and try it out. Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: ethought on May 14, 2013, 10:45:48 AM Does this driver need to be replaced / updated?
fglrxinfo display: :0.0 screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: AMD Radeon HD 7900 Series OpenGL version string: 4.2.11332 Compatibility Profile Context Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: phorensic on May 14, 2013, 02:48:33 PM There is no relevant driver info in that command output you posted. Have you installed this? - http://support.amd.com/us/gpudownload/linux/Pages/radeon_linux.aspx?type=2.4.1&product=2.4.1.3.42&lang=English
Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: s7ryker on May 16, 2013, 05:34:11 PM I have same card and same problem 102-104 khs
Post when u fiind a fix pls. Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: Prelude on May 16, 2013, 05:35:22 PM Try flashing the card with non OC bios. Can be found on techpowerup.
Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: Someminir on May 16, 2013, 05:48:17 PM Wait,
Are you using a 230Watt PSU for a card that uses more then 300watt on full load..? If so, upgrading your RAM will NOT solve the problem. Unless you get a PSU that provides enough power. Edit: I cannot into correct sentences. Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: Someminir on May 16, 2013, 06:39:30 PM Wait, Are you using a 230Watt PSU for a card that uses more then 300watt on full load..? If not, upgrading your RAM will solve the problem. I think you mean WILL NOT solve the issue. Whoops. :-[ Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: s7ryker on May 16, 2013, 06:57:42 PM i use bamt 5.0 seasonic x 1250 , 8 gb ram, i flash the card with new bios and no change
Title: Re: Sapphire HD7970 OC version with cgminer only getting 100Kh/s Post by: mepsipax on May 18, 2013, 07:10:27 PM Try this - go to your device manager winkey+pause, then select your onboard graphics and disable (even if you are certain that your graphics card is the default)
Reboot your PC, and hopefully you should be full speed. |