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Title: Low hashrate on some GTX 1070 (22MHs w/o OC) Post by: 100percent on December 29, 2017, 03:17:33 PM I have a rig with 12 GTX1070.
Six of them perform well, 26MHs without overclock, in ethereum But the other 6 only perform 22MHs The 6 slow cards are all micron memory. From the 6 fast cards, there are 5 with samsung memory and 1 with micron memory. So the problem is not necessarily the memory type. I tried flashing the bios from the fast micron card to the slow micron cards, but the hashrate keeps the same. There is another difference between the fast and the slow cards: The fast cards have the subsystem 3773 The slow cards have the subsystem 3703 Any idea how to make all the cards run at 26MH without overclock (hopefully 31 with OC)? Title: Re: Low hashrate on some GTX 1070 (22MHs w/o OC) Post by: bigjee on December 29, 2017, 03:33:49 PM Not only does memory type not matter but neither does the bios.
Your issue seems hardware related have you tried testing the slow cards on the risers from the fast cards. Are you running these 12 cards simultaneously? Run the slow cards without connecting the fast ones or replicate withe fast card setup. Can you give a list of system components? Title: Re: Low hashrate on some GTX 1070 (22MHs w/o OC) Post by: 100percent on December 29, 2017, 05:13:18 PM Yes all 12 cards are running simultaneously.
The 12 risers are identical: https://www.amazon.es/gp/product/B073TFFWM9/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1 I checked a single slow card on another computer and also got 22MHs. Motherboard: ASUS B250 Mining Expert CPU: Intel Pentium G4400 RAM: 2x Crucial 4GB DDR4 HDD: Kingston SSD UV400 120Gb Risers: Ptsaying 6 pin PCIe (link above) PSU: 2x EVGA Supernova P2 1200W OS: Windows 10 Pro Title: Re: Low hashrate on some GTX 1070 (22MHs w/o OC) Post by: 100percent on January 05, 2018, 06:32:40 PM Found a very similar problem in this reddit thread:
https://www.reddit.com/r/EtherMining/comments/7f50ax/only_getting_22mhs_on_gtx_1070_what_is_going_wrong/ In this case the problem was solved by changing the bios, but this didn't work for me... Any other suggestion? Title: Re: Low hashrate on some GTX 1070 (22MHs w/o OC) Post by: miningchamp93 on November 19, 2018, 10:22:49 PM Geforce GTX 1070 G1 Provide low hashrate of 490 Hash/s algorithm by Equihash at Coreclock 2012 MHz while consuming 130 Power(watts).
https://miningchamp.com/gpus/77/Gigabyte-Geforce-GTX-1070-G1-hashrate (https://miningchamp.com/gpus/77/Gigabyte-Geforce-GTX-1070-G1-hashrate) You can find more On https://miningchamp.com (https://miningchamp.com) Title: Re: Low hashrate on some GTX 1070 (22MHs w/o OC) Post by: NiklasFalk on November 20, 2018, 05:50:38 PM STFO with the constant spam and resurrecting ancient threads.
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