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Bitcoin Forum > Bitcoin > Mining > Mining support > S9 13.5 TH vs. 14 THs
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ccgllc (OP)
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February 15, 2018, 06:32:36 PM
 #1
Does anyone know where/how the firmware determines if an antminer is a 14TH/sec vs. a 13.5TH/sec box?

Is it one of the jumpers on the control card?  A setting in some configuration file?

It FEELS like the firmware finds that information somewhere, then autotunes the available cards to come as close as possible.  If it autotuned each card to its maximum, I would think we would see a spectrum of different speeds as "ideal" ones.
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VRobb
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February 15, 2018, 06:57:33 PM
 #2
It runs the Auto-tune on each card and adds the three together for the total THs. Faster hashboards will give faster miner, not firmware.
I don't believe in superstition because it's bad luck: 13thF1oor6CAwyzyxXPNnRvu3nhhYeqZdc
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February 15, 2018, 07:35:28 PM
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There are default settings in the PIC controller on each hashboard and the firmware extrapolates the expected speed from there.
Stop buying industrial miners, running them at home, and then complaining about the noise.
ccgllc (OP)
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February 15, 2018, 09:03:17 PM
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Quote from: fanatic26 on February 15, 2018, 07:35:28 PM
There are default settings in the PIC controller on each hashboard and the firmware extrapolates the expected speed from there.

Thank you!
Mined for a living since 2017.  Dabbled for years before that.
Linux admin since 0.96 kernel and Slackware distributions on (4) floppies...
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