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Title: My miner 6 x Sapphire r9 280x 11221-00-20g Post by: albasalo on March 08, 2014, 02:17:12 AM Hi at all,
I'm just a new miner and i have left many night hours dedicated to finding the right balance between core clock and mem clock I found the following configurations. The stability varies from card to card and to get it to go down with the core clock 5/10 Mhz until you get the right balance for this, the following values are relative to my cards and may vary with your own. UnderClock With Hynix mem: Voltage - Mem Clock - Core Clock - Hash Rate - Watt - Ratio - Total Watt 0.925v 850Mhz 800Mhz 595/600Kh/s 160 3.6khs/w 1000w circa 1.025v 945Mhz 1000Mhz 660/665Kh/s 195 3.2khs/w 1200w circa 1.050v 980Mhz 1000Mhz 700/705Kh/s 220 3.0khs/w 1350w circa With Elpidia i have find this: Voltage - Mem Clock - Core Clock - Hash Rate - Watt - Ratio - Total Watt 1.075v 1000Mhz 1250Mhz 700/705Kh/s 225 3.0khs/w 1390w circa Bius version used for underclocking is 041 for hynix and elpidia Video Card: Sapphire r9 280x Dual-x 11221-00-20G I hope that serves to someone and if you want I can also post the modified bios .. you can offer me a beer: BTC 134aoVAYzyi3zZDv4gUbnJ2J6Vu34B3xND Doge DJYPuRHt6qB5CzvxNKcHfxTGfXdLXGFfAc |