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Title: Undervolting 5970 Problem. 0.001 BTC reward Post by: hunainshahzad on April 10, 2014, 04:34:56 PM Hello guys i have a miner consisting of XFX
1.6990 black edition 2.5970 black edition Which is running @ 1.732 Mhash/sec. 6990 @910/1360/1.110v 491hash per core 5970 @820/1200/1.050v 373hash per core I want to bring 5970 lower on 0.95v. Please tell me cgminer settings which will provide me max Mhash/J. Do tell me intensity TC g, work, etc etc. Title: Re: Undervolting 5970 Problem. 0.001 BTC reward Post by: p4u on April 10, 2014, 04:39:30 PM I'm also fighting with 5970, those GPU are not easy... Can you tell me which Catalyst and AMD-APP-SDK versions are you using and which cgminer options?
For reduce the VCC you only need to add the next option to the cgminer.conf file "gpu-vddc": "0.95" But in my tests less than 0.97 gives very low hashrate... however maybe I messed it up in some other point. Title: Re: Undervolting 5970 Problem. 0.001 BTC reward Post by: SpeedDemon13 on April 10, 2014, 04:52:21 PM Hello guys i have a miner consisting of XFX 1.6990 black edition 2.5970 black edition Which is running @ 1.732 Mhash/sec. 6990 @910/1360/1.110v 491hash per core 5970 @820/1200/1.050v 373hash per core I want to bring 5970 lower on 0.95v. Please tell me cgminer settings which will provide me max Mhash/J. Do tell me intensity TC g, work, etc etc. 1.05~1.10 is the lowest you can probably go and still get decent hash rates. Otherwise, running lower, you'll lose a good amount of hash rate. You probably can go 850 mhz core on the 5970. Maybe 950 core on the 6990. TC=8192, g=2, Worksize=256, I=18. Title: Re: Undervolting 5970 Problem. 0.001 BTC reward Post by: hunainshahzad on April 10, 2014, 04:59:12 PM I'm also fighting with 5970, those GPU are not easy... Can you tell me which Catalyst and AMD-APP-SDK versions are you using and which cgminer options? For reduce the VCC you only need to add the next option to the cgminer.conf file "gpu-vddc": "0.95" But in my tests less than 0.97 gives very low hashrate... however maybe I messed it up in some other point. I am using 13.1 and 2.7 sdk. Yes i have added that option in bat file not in conf file. Hello guys i have a miner consisting of XFX 1.6990 black edition 2.5970 black edition Which is running @ 1.732 Mhash/sec. 6990 @910/1360/1.110v 491hash per core 5970 @820/1200/1.050v 373hash per core I want to bring 5970 lower on 0.95v. Please tell me cgminer settings which will provide me max Mhash/J. Do tell me intensity TC g, work, etc etc. 1.05~1.10 is the lowest you can probably go and still get decent hash rates. Otherwise, running lower, you'll lose a good amount of hash rate. You probably can go 850 mhz core on the 5970. Maybe 950 core on the 6990. TC=8192, g=2, Worksize=256, I=18. I want 650+khash on 0.95v 5970 @ 715 0.95v and 765 have helped me to reach 590. Testing TC now Title: Re: Undervolting 5970 Problem. 0.001 BTC reward Post by: SpeedDemon13 on April 10, 2014, 05:03:28 PM I'm also fighting with 5970, those GPU are not easy... Can you tell me which Catalyst and AMD-APP-SDK versions are you using and which cgminer options? For reduce the VCC you only need to add the next option to the cgminer.conf file "gpu-vddc": "0.95" But in my tests less than 0.97 gives very low hashrate... however maybe I messed it up in some other point. I am using 13.1 and 2.7 sdk. Yes i have added that option in bat file not in conf file. Hello guys i have a miner consisting of XFX 1.6990 black edition 2.5970 black edition Which is running @ 1.732 Mhash/sec. 6990 @910/1360/1.110v 491hash per core 5970 @820/1200/1.050v 373hash per core I want to bring 5970 lower on 0.95v. Please tell me cgminer settings which will provide me max Mhash/J. Do tell me intensity TC g, work, etc etc. 1.05~1.10 is the lowest you can probably go and still get decent hash rates. Otherwise, running lower, you'll lose a good amount of hash rate. You probably can go 850 mhz core on the 5970. Maybe 950 core on the 6990. TC=8192, g=2, Worksize=256, I=18. I want 650+khash on 0.95v 5970 @ 715 0.95v and 765 have helped me to reach 590. Testing TC now 700~725 khs on 0.95 is about the average at that voltage. Title: Re: Undervolting 5970 Problem. 0.001 BTC reward Post by: hunainshahzad on April 10, 2014, 05:06:33 PM I'm also fighting with 5970, those GPU are not easy... Can you tell me which Catalyst and AMD-APP-SDK versions are you using and which cgminer options? For reduce the VCC you only need to add the next option to the cgminer.conf file "gpu-vddc": "0.95" But in my tests less than 0.97 gives very low hashrate... however maybe I messed it up in some other point. I am using 13.1 and 2.7 sdk. Yes i have added that option in bat file not in conf file. Hello guys i have a miner consisting of XFX 1.6990 black edition 2.5970 black edition Which is running @ 1.732 Mhash/sec. 6990 @910/1360/1.110v 491hash per core 5970 @820/1200/1.050v 373hash per core I want to bring 5970 lower on 0.95v. Please tell me cgminer settings which will provide me max Mhash/J. Do tell me intensity TC g, work, etc etc. 1.05~1.10 is the lowest you can probably go and still get decent hash rates. Otherwise, running lower, you'll lose a good amount of hash rate. You probably can go 850 mhz core on the 5970. Maybe 950 core on the 6990. TC=8192, g=2, Worksize=256, I=18. I want 650+khash on 0.95v 5970 @ 715 0.95v and 765 have helped me to reach 590. Testing TC now 700~725 khs on 0.95 is about the average at that voltage. Can you please quote the exact settings of cgminer to get that much hashes @ 0.95v??? Title: Re: Undervolting 5970 Problem. 0.001 BTC reward Post by: hunainshahzad on April 10, 2014, 05:24:24 PM Reached 660khash @ 730/810/0.95V :D.
The one who maximises my hash at 0.95v will get the reward :P |