Problems underclocking Antminer S1 under 250hz. Super undervolt help needed~

[VirosaGITS]

So, at 193 or 200hz (the only 2 freq i have listed under 250hz) cgminer miner start but show 0 hashrate. For the skeptics that still need a screenshot;

http://imgur.com/kWVVXXE

        #option 'freq_value'    '0781'  #200M
        #option 'chip_freq'     '200'
        #option 'timeout'       '70'
                                             
        #option 'freq_value'    '4f02'  #193M
        #option 'chip_freq'     '193'
        #option 'timeout'       '70'

Both does not work, tested on different S1's, the same thing happen, they are penmodded to 2.8-3 ohm.

My goal is to undervolt them to the max, rumored to go down to 90GH/s for 80watts, any input would be appreciated.

[1714118846]

1714118846

[1714118846]

1714118846

[nwfella]

You really need to check out what user CHAOSiTEC did in this thread https://bitcointalk.org/index.php?topic=526060.400

[VirosaGITS]

You really need to check out what user CHAOSiTEC did in this thread https://bitcointalk.org/index.php?topic=526060.400

That is a great link, thank you. I am going through it, a lot of posts. For one i tried a value for 200/60, and i get 12gh. Well still not quite there yet, but its better than 0, in the right direction.

The other thing is i'm not downvolted as much as them so i'm not sure how that affect the required configuration. But i'm working on it.

Also the turnpot resistor is dope.

[nwfella]

You really need to check out what user CHAOSiTEC did in this thread https://bitcointalk.org/index.php?topic=526060.400

That is a great link, thank you. I am going through it, a lot of posts. For one i tried a value for 200/60, and i get 12gh. Well still not quite there yet, but its better than 0, in the right direction.

The other thing is i'm not downvolted as much as them so i'm not sure how that affect the required configuration. But i'm working on it.

Also the turnpot resistor is dope.

Thought it would help

Yeah, the resistor is pretty freaking cool.

[VirosaGITS]

You really need to check out what user CHAOSiTEC did in this thread https://bitcointalk.org/index.php?topic=526060.400

That is a great link, thank you. I am going through it, a lot of posts. For one i tried a value for 200/60, and i get 12gh. Well still not quite there yet, but its better than 0, in the right direction.

The other thing is i'm not downvolted as much as them so i'm not sure how that affect the required configuration. But i'm working on it.

Also the turnpot resistor is dope.

Thought it would help

Yeah, the resistor is pretty freaking cool.

Yeah it did, i did not find the solution there but it helped figure that the problem was the chip timeout, not the freq value. I did not find the freq values i wanted but i got 193hz which is close enough.

Doing 100GH ish for 110 watts ish. Close enough to what i needed.

Thanks.

[nwfella]

You really need to check out what user CHAOSiTEC did in this thread https://bitcointalk.org/index.php?topic=526060.400

That is a great link, thank you. I am going through it, a lot of posts. For one i tried a value for 200/60, and i get 12gh. Well still not quite there yet, but its better than 0, in the right direction.

The other thing is i'm not downvolted as much as them so i'm not sure how that affect the required configuration. But i'm working on it.

Also the turnpot resistor is dope.

Thought it would help

Yeah, the resistor is pretty freaking cool.

Yeah it did, i did not find the solution there but it helped figure that the problem was the chip timeout, not the freq value. I did not find the freq values i wanted but i got 193hz which is close enough.

Doing 100GH ish for 110 watts ish. Close enough to what i needed.

Thanks.

Glad I could help.