Bitmain L3+ Voltage Control Tool...Free :)

[sololoop]

Thx jstefanop.
Testing my ten L3+ with lowest voltage (0xfe). Currently running 400 frequency.

Can this set frequency for each board individually?
for example :
board 1,2,3 running very smooth on 450 frequency & voltage 0xc0 with less HW
board 4  cant go over 400 no mater how high is voltage (0x30) , too much HW (error every sec)

[philipma1957]

Thx jstefanop.
Testing my ten L3+ with lowest voltage (0xfe). Currently running 400 frequency.

Can this set frequency for each board individually?
for example :
board 1,2,3 running very smooth on 450 frequency & voltage 0xc0 with less HW
board 4  cant go over 400 no mater how high is voltage (0x30) , too much HW (error every sec)

I will chime in it can give multiple voltage for each board.

Not mutilple freq.

So this means you can choose  freq 400 knowing the three boards are under tasked or choose say 425 and tossing lots of errors on the poor board

btw don't volt the bad board that high you will just burn it out.

personally i would swap it to a different L3+  but if you have 1 l3+ that is not an option.

[jstefanop]

Thx jstefanop.
Testing my ten L3+ with lowest voltage (0xfe). Currently running 400 frequency.

Can this set frequency for each board individually?
for example :
board 1,2,3 running very smooth on 450 frequency & voltage 0xc0 with less HW
board 4  cant go over 400 no mater how high is voltage (0x30) , too much HW (error every sec)

No since tuning voltage and frequency for each board is redundant and way more complicated than it needs to be. You just choose a frequency you want to run, and then tune the voltage on each board. Sounds to me like you have a faulty board....there are some boards that will just produce more errors regardless of what voltage/frequency you set (i.e. some chips just have logic defects that will produce errors even if the frequency/voltage is low/high enough).

[taserz]

How difficult is auto-tune to code. Set voltage restart hash for 5 minutes count error rate per board restart try new on etc etc? Just curious how it is done.

[sololoop]

Thx jstefanop.
Testing my ten L3+ with lowest voltage (0xfe). Currently running 400 frequency.

Can this set frequency for each board individually?
for example :
board 1,2,3 running very smooth on 450 frequency & voltage 0xc0 with less HW
board 4  cant go over 400 no mater how high is voltage (0x30) , too much HW (error every sec)

No since tuning voltage and frequency for each board is redundant and way more complicated than it needs to be. You just choose a frequency you want to run, and then tune the voltage on each board. Sounds to me like you have a faulty board....there are some boards that will just produce more errors regardless of what voltage/frequency you set (i.e. some chips just have logic defects that will produce errors even if the frequency/voltage is low/high enough).

Copy that. I got few faulty boards that must run on 384 freq or below.
I will try philipma1957 's advice to swap those faulty boards.

Thanks.

[philipma1957]

Thx jstefanop.
Testing my ten L3+ with lowest voltage (0xfe). Currently running 400 frequency.

Can this set frequency for each board individually?
for example :
board 1,2,3 running very smooth on 450 frequency & voltage 0xc0 with less HW
board 4  cant go over 400 no mater how high is voltage (0x30) , too much HW (error every sec)

No since tuning voltage and frequency for each board is redundant and way more complicated than it needs to be. You just choose a frequency you want to run, and then tune the voltage on each board. Sounds to me like you have a faulty board....there are some boards that will just produce more errors regardless of what voltage/frequency you set (i.e. some chips just have logic defects that will produce errors even if the frequency/voltage is low/high enough).

Copy that. I got few faulty boards that must run on 384 freq or below.
I will try philipma1957 's advice to swap those faulty boards.

Thanks.

And run them gentle like freq 359 with lowest volts

[urgcm]

How difficult is auto-tune to code. Set voltage restart hash for 5 minutes count error rate per board restart try new on etc etc? Just curious how it is done.

not in C code, but rather in bash script.
i've wrote some scripts that change freq in /config/cgminer.conf and then restart cgminer, wait 5 minutes and check HWerrs, temperature and rate for that freq.
from hi values of freq to lower ones - when you get HWerrs lower than some limit (half percent, for example) - you get right freq value.
voltage has to be changed via set_voltage program, and then start freq-optimization script again.

[urgcm]

No since tuning voltage and frequency for each board is redundant and way more complicated than it needs to be. You just choose a frequency you want to run, and then tune the voltage on each board.

Dear Stefano,
could you please describe the value of voltage we pass to set_voltage ?
The default value of 0x80 - what real voltage does it correspond to ?
And the 0x70?
How to translate 0x70 to Volts?

[ordimans]

The same script doesn't work for S9 ?

[greyday]

Ooh, interesting. I just took my L3 offline because it crossed the magic 1:1 electricity to profit line last week. May have to plug it back in and give it a whirl.

If you're looking for suggestions for future projects, the A3 is also on that borderline at this point...

[Sandal_Hat]

The same script doesn't work for S9 ?

It doesnt, unfortinately. Ihave tried.

[fabry1999]

I have try on A3 but use a different PIC and I get:

root@antMiner_A3:/config# ./set_voltage 1 90

 version = 0xff
Wrong PIC version

Is it possible update the code in order to support A3 PIC ?

thx

[jstefanop]

I have try on A3 but use a different PIC and I get:

root@antMiner_A3:/config# ./set_voltage 1 90

 version = 0xff
Wrong PIC version

Is it possible update the code in order to support A3 PIC ?

thx

Ill check the A3 and see if I can get it to work, S9 uses completely proprietary stuff on hardware and software level now so without reverse engineering it wont be possible. Im pretty sure the S9 already does auto voltage tuning anyway.

[taserz]

Thx jstefanop.
Testing my ten L3+ with lowest voltage (0xfe). Currently running 400 frequency.

Can this set frequency for each board individually?
for example :
board 1,2,3 running very smooth on 450 frequency & voltage 0xc0 with less HW
board 4  cant go over 400 no mater how high is voltage (0x30) , too much HW (error every sec)

No since tuning voltage and frequency for each board is redundant and way more complicated than it needs to be. You just choose a frequency you want to run, and then tune the voltage on each board. Sounds to me like you have a faulty board....there are some boards that will just produce more errors regardless of what voltage/frequency you set (i.e. some chips just have logic defects that will produce errors even if the frequency/voltage is low/high enough).

Copy that. I got few faulty boards that must run on 384 freq or below.
I will try philipma1957 's advice to swap those faulty boards.

Thanks.

And run them gentle like freq 359 with lowest volts

Hell I got boards that have to be run at like 300 and they still cause the miner to crash. Once the L3+ start going they degrade really fast.

[Sandal_Hat]

I have try on A3 but use a different PIC and I get:

root@antMiner_A3:/config# ./set_voltage 1 90

 version = 0xff
Wrong PIC version

Is it possible update the code in order to support A3 PIC ?

thx

Ill check the A3 and see if I can get it to work, S9 uses completely proprietary stuff on hardware and software level now so without reverse engineering it wont be possible. Im pretty sure the S9 already does auto voltage tuning anyway.

I see. Thanks for info.

[brunocrypto]

Thanks you for the tips for the Bitmain L3+ Voltage Control !

[FNT]

I have try on A3 but use a different PIC and I get:

root@antMiner_A3:/config# ./set_voltage 1 90

 version = 0xff
Wrong PIC version

Is it possible update the code in order to support A3 PIC ?

thx

Ill check the A3 and see if I can get it to work, S9 uses completely proprietary stuff on hardware and software level now so without reverse engineering it wont be possible. Im pretty sure the S9 already does auto voltage tuning anyway.

Hi jstefanop,

Thanks for your effort and opensource tool!!
I tried it on A3 but I only get 0xff for PIC version and for voltage!
This is not possible, I haven‘t set the voltage at this point, as read pic
delivers 0xff... any thoughs about that?
Maybe other pic addresses?

Bye, FNT

[toptek12]

any one try on a V9 yet ? . can it be done on a V9 with the right PIC version update ?. just wondering no big deal other wise .

I'm toptek some one hacked  my account an i may not get it back sigh never put a key on it owell I think i pissed some one off in one post about keeping asic off our gpu mining . ....

[connectCORRECT]

https://imgur.com/a/ZaWxu2O

Hello
is it possible that my version of L3 + (12/2017) does not work?
Or am I doing something wrong?
Thanks for reply or advice

P.S.
ssh login and commands after restarting L3 +
I tried everything possible and still the same.

[FNT]

https://imgur.com/a/ZaWxu2O

Hello
is it possible that my version of L3 + (12/2017) does not work?
Or am I doing something wrong?
Thanks for reply or advice

P.S.
ssh login and commands after restarting L3 +
I tried everything possible and still the same.

Hi!

Looks like you haven‘t set permission right.

sudo chmod a+x set_voltage

See also first posts...

Bye, FNT