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Title: Underclocking Antminer S1's Post by: mufa23 on April 24, 2014, 09:32:45 AM With Summer(heat) coming around the corner, and the ever climbing difficulty, what are some good clocks you guys are running? I'm thinking of underclocking them pretty soon, and was hoping to get around ~1.4w to the Gigahash. Is that wishful thinking?
EDIT: Adding below message (https://bitcointalk.org/index.php?topic=582597.msg6771818#msg6771818) Quote I did some testing a few weeks back, and learned that underclocked or overclocked (using the clocks in the asic-freq file) still gave the unit a rough 2w/1GHs ratio. I'll post my results:
Tested in a 68'F room with a slight breeze on the units using 80 Gold 550watt Seasonic PSUs. Title: Re: Underclocking Antminer S1's Post by: googlemaster1 on May 15, 2014, 02:24:12 AM I would definitely like to bump this, but I would also like to preface that I am in the midst of experimenting as well. I don't have a multimeter though, I should probably pick one up!!!
Right now I have 3 Ant S1's in the closet doing 300 mhz getting 155gh/s each off an 850w gold psu. I'm scared to go any higher because I think I'm already at the breaking point. Would love to hear other peoples underclocking stories. Title: Re: Underclocking Antminer S1's Post by: xray on May 16, 2014, 01:16:25 PM whats your settings for these as i have jumped in and just bought more ants. i have corsair 750w on each 1 ant. but would like to use these psu on 2 ants , any suggestions ?
Title: Re: Underclocking Antminer S1's Post by: googlemaster1 on May 16, 2014, 04:41:36 PM a 750w is fine to handle two not overclocked. Don't change any asic-freq settings on a 750w psu setup. So long as its a gold rated psu and has decent reviews, a 750w will handle two no problem. However, do NOT overclock these. You might be able to squeak a 375mhz OC on one of the two, but I wouldn't bother, but I am one to not leave my PSU's a lot of headroom. :P
Title: Re: Underclocking Antminer S1's Post by: mufa23 on May 16, 2014, 10:55:35 PM I did some testing a few weeks back, and learned that underclocked or overclocked (using the clocks in the asic-freq file) still gave the unit a rough 2w/1GHs ratio. I'll post my results:
Tested in a 68'F room with a slight breeze on the units using 80 Gold 550watt Seasonic PSUs. Title: Re: Underclocking Antminer S1's Post by: googlemaster1 on May 17, 2014, 12:27:36 AM I did some testing a few weeks back, and learned that underclocked or overclocked (using the clocks in the asic-freq file) still gave the unit a rough 2w/1GHs ratio. I'll post my results:
Tested in a 68'F room with a slight breeze on the units using 80 Gold 550watt Seasonic PSUs. Hmm, Have you tried to put multiple on one PSU to see the draw? I have 3x on 300M getting 155 on a 850w and my psu is nice and cool still. Don't have a multimeter to test how much I'm killing my PSU, though. But hey, it works! Title: Re: Underclocking Antminer S1's Post by: crazyearner on May 17, 2014, 12:41:19 AM Is their a way to under-volt units with writing a new firmware for it or a custom firmware where clock speeds are when in kitty to under volt ?
Title: Re: Underclocking Antminer S1's Post by: mufa23 on May 17, 2014, 04:31:50 AM Hmm, Have you tried to put multiple on one PSU to see the draw? I have 3x on 300M getting 155 on a 850w and my psu is nice and cool still. Don't have a multimeter to test how much I'm killing my PSU, though. But hey, it works! Haven't, but it shouldn't matter all that much. And yeah, you are killing your PSU. It's being pushed way harder than it should be.Title: Re: Underclocking Antminer S1's Post by: terrapinflyer on May 22, 2014, 09:03:56 AM Have you seen the Undervolt antminer s1 1.19W/GH at the wall (https://bitcointalk.org/index.php?topic=526060.0) thread?
Hope that helps. |