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Title: 280X BAMT Post by: NameTaken on March 01, 2014, 05:41:47 PM I'm able to get 740-750KH/s from my Sapphire 280X Dual-Xs in Windows but I can not seem to get them over 660KH/s in BAMT and SMOS. Currently running BAMT 1.5 and have TeamViewer installed so I would appreciate it if anyone can offer remote assistance.
Title: Re: 280X BAMT Post by: NameTaken on March 01, 2014, 06:20:07 PM No help? :(
Title: Re: 280X BAMT Post by: alexout on March 01, 2014, 10:56:43 PM Make sure GPU threads is at 2
Try changing thread concurrency between 8192, 8193, 8191 and 11200. Title: Re: 280X BAMT Post by: NameTaken on March 01, 2014, 11:19:27 PM Make sure GPU threads is at 2 Try changing thread concurrency between 8192, 8193, 8191 and 11200. Setting the threads to 2 prevents the miner from starting and setting the thread concurrency to anything but the stock with intensity of 20 reduces the hashrate. I gave up and went back to Windows. Title: Re: 280X BAMT Post by: crazyates on March 02, 2014, 12:43:17 AM Do NOT use BAMT 1.5. It uses the newer 14.1 BETA drivers, which absolutely SUCK for mining. Reflash BAMT 1.3, which uses better drivers, and you'll be all set.
We lost ~100kh/s when we tried BAMT 1.5, and we immediately went back to BAMT 1.3 on all our rigs. And yes, the optimal settings for those 280x will be using 2 threads, with a lower TC. We use SGMiner 4.1, TC 8193, 2 threads, and the zuikkis kernel, and we get anywhere from 740 to 780KH/s on our Gigabyte cards, depending on RAM type and core OC limits. Title: Re: 280X BAMT Post by: NameTaken on March 02, 2014, 12:48:30 AM Do NOT use BAMT 1.5. It uses the newer 14.1 BETA drivers, which absolutely SUCK for mining. Reflash BAMT 1.3, which uses better drivers, and you'll be all set. We lost ~100kh/s when we tried BAMT 1.5, and we immediately went back to BAMT 1.3 on all our rigs. And yes, the optimal settings for those 280x will be using 2 threads, with a lower TC. We use SGMiner 4.1, TC 8193, 2 threads, and the zuikkis kernel, and we get anywhere from 740 to 780KH/s on our Gigabyte cards, depending on RAM type and core OC limits. Got same result with BAMT 1.3 and 1.5. With SMOS 1.3 I got 700+ but still not on par with Windows. A dedicated Windows mining OS looks interesting. https://litecointalk.org/index.php?topic=16545.0 |