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Title: Optimal Settings For Sapphire 5830? Post by: gigabytecoin on May 21, 2011, 11:40:48 AM So I got a few friends of mine involved in bitcoin mining... convinced them to buy a few 5830 GPUs since we can get them for about $110 USD each up here in Canada.
I noticed that when installing ubuntu with these 5830s at any clock setting (stock or overclocked) the mouse didn't show up. With or without fglrx drivers... no mouse... hrmmm??? I have managed to set the memory clock to 300 MHz and the GPU core to 975 MHz with no problems and have received about 240 MHash/sec off of each card. I was hoping for at least 250 though.. :S Any suggestions to up the speed? Title: Re: Optimal Settings For Sapphire 5830? Post by: Clipse on May 21, 2011, 11:44:35 AM So I got a few friends of mine involved in bitcoin mining... convinced them to buy a few 5830 GPUs since we can get them for about $110 USD each up here in Canada. I noticed that when installing ubuntu with these 5830s at any clock setting (stock or overclocked) the mouse didn't show up. With or without fglrx drivers... no mouse... hrmmm??? I have managed to set the memory clock to 300 MHz and the GPU core to 975 MHz with no problems and have received about 240 MHash/sec off of each card. I was hoping for at least 250 though.. :S Any suggestions to up the speed? Not to take the p_ss out of your question :P but you could get that extra 10mhash from mining your cpu(if its atleast semi decent one) Just make sure if you mine GPU/CPU together to leave one thread open so that it wont cause a slowdown on the GPU. Might be a windows things but worth checking first on linux. Title: Re: Optimal Settings For Sapphire 5830? Post by: gigabytecoin on May 21, 2011, 12:02:10 PM So I got a few friends of mine involved in bitcoin mining... convinced them to buy a few 5830 GPUs since we can get them for about $110 USD each up here in Canada. I noticed that when installing ubuntu with these 5830s at any clock setting (stock or overclocked) the mouse didn't show up. With or without fglrx drivers... no mouse... hrmmm??? I have managed to set the memory clock to 300 MHz and the GPU core to 975 MHz with no problems and have received about 240 MHash/sec off of each card. I was hoping for at least 250 though.. :S Any suggestions to up the speed? Not to take the p_ss out of your question :P but you could get that extra 10mhash from mining your cpu(if its atleast semi decent one) Just make sure if you mine GPU/CPU together to leave one thread open so that it wont cause a slowdown on the GPU. Might be a windows things but worth checking first on linux. No offense taken! My buddy is running 4 * 5830s on an MSI 790FX-GD70 board... works fairly well at the moment... doing about 20% better than stock speeds at only ~18% gpu core increase. Really my question is "is there a limit to how many mhz a cpu core can acheive? or is it solely dependant on temperature?"...??? I will be playing around with them more over the next few days and will let y'all know. As of right now... we're doing almost 1 Ghps on an $800 USD rig. PM me for parts/info. Title: Re: Optimal Settings For Sapphire 5830? Post by: grndzero on May 21, 2011, 12:08:04 PM So I got a few friends of mine involved in bitcoin mining... convinced them to buy a few 5830 GPUs since we can get them for about $110 USD each up here in Canada. I noticed that when installing ubuntu with these 5830s at any clock setting (stock or overclocked) the mouse didn't show up. With or without fglrx drivers... no mouse... hrmmm??? I have managed to set the memory clock to 300 MHz and the GPU core to 975 MHz with no problems and have received about 240 MHash/sec off of each card. I was hoping for at least 250 though.. :S Any suggestions to up the speed? Not to take the p_ss out of your question :P but you could get that extra 10mhash from mining your cpu(if its atleast semi decent one) Just make sure if you mine GPU/CPU together to leave one thread open so that it wont cause a slowdown on the GPU. Might be a windows things but worth checking first on linux. No offense taken! My buddy is running 4 * 5830s on an MSI 790FX-GD70 board... works fairly well at the moment... doing about 20% better than stock speeds at only ~18% gpu core increase. Really my question is "is there a limit to how many mhz a cpu core can acheive? or is it solely dependant on temperature?"...??? I will be playing around with them more over the next few days and will let y'all know. As of right now... we're doing almost 1 Ghps on an $800 USD rig. PM me for parts/info. The speed the core can handle is partially dependent on the voltage it can handle. Those are easier to discover in windows than in linux. The wiki says VECTORS BFI_INT FASTLOOP=false AGGRESSION=12 WORKSIZE=256 so no different that a 5850 or 5870. Title: Re: Optimal Settings For Sapphire 5830? Post by: Clipse on May 21, 2011, 12:13:54 PM The speed the core can handle is partially dependent on the voltage it can handle. Those are easier to discover in windows than in linux. The wiki says VECTORS BFI_INT FASTLOOP=false AGGRESSION=12 WORKSIZE=256 so no different that a 5850 or 5870. Well, the 5830 is a big downgrade from the 5850/5870 since he listed he is using a 5830. Id suggest checking the hardware page out : https://en.bitcoin.it/wiki/Mining_hardware_comparison The performance you get per 5830 seems just about correct for near stock speeds, perhaps follow some of the notes on the wiki pages opposite the 5830's. |