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Topic: Antminer D3 Blissz firmware (10/12 v1.12 update) - page 125. (Read 125911 times)

full member
Activity: 348
Merit: 119
did someone as the magic skill to shutdown the 100% default fan on every reboot or setting change ?
this make me crazy
member
Activity: 140
Merit: 10
Very nice job Dude !!

do you have another picture of the soldering of potentiometer on the r80 slot?



Thanks
newbie
Activity: 31
Merit: 0
@blissz: could we modify voltage with software? I connected to D3 with SSH, and I can change some settings in cgminer and cgminer.conf, but I don't know what is the best voltage value.


I expect it's possible but didn't find the right knobs yet to do so. It would be way more convenient compared to the hard mod...

Antminer S series had voltage/freq/timing table. If so have same table, it would be easy to set better  efficiency.
newbie
Activity: 16
Merit: 0
after under volting to 7.1v is it ok to set a higher clock value other than 430mhz. if so, which value would be most optimal for this under volted "7.1v" miner ?
sr. member
Activity: 336
Merit: 258
@blissz: could we modify voltage with software? I connected to D3 with SSH, and I can change some settings in cgminer and cgminer.conf, but I don't know what is the best voltage value.


I expect it's possible but didn't find the right knobs yet to do so. It would be way more convenient compared to the hard mod...
newbie
Activity: 31
Merit: 0
changing the hashing  algo strongly needed for this device.
x11(coins)  is insufficient as of today
newbie
Activity: 31
Merit: 0
@blissz: could we modify voltage with software? I connected to D3 with SSH, and I can change some settings in cgminer and cgminer.conf, but I don't know what is the best voltage value.
newbie
Activity: 16
Merit: 0
Hello , and thanks for share , i m waiting 1 for batch end of november , difficulty is very stuck now.
it 's very interesting to mod i think , yeah a good point would be to have mutli algo possible , buyt i think it s a dream , bitmain dont care about customer , buy a product 2 month before is just a trap ...
but anyway , i'll could have photos of D3 for the next batch , and probably have photo of l3+ 1-10 nov batch soon for you Smiley

For multi algo we're hand over to the bitmain I am afraid....
Send me the L3+ pics once you got it Smiley



D3 firmware released Nov-2017

https://shop.bitmain.com/support.htm?pid=00720170915192851224mJ36J1ap066E
sr. member
Activity: 336
Merit: 258
Hello , and thanks for share , i m waiting 1 for batch end of november , difficulty is very stuck now.
it 's very interesting to mod i think , yeah a good point would be to have mutli algo possible , buyt i think it s a dream , bitmain dont care about customer , buy a product 2 month before is just a trap ...
but anyway , i'll could have photos of D3 for the next batch , and probably have photo of l3+ 1-10 nov batch soon for you Smiley

For multi algo we're hand over to the bitmain I am afraid....
Send me the L3+ pics once you got it Smiley
sr. member
Activity: 336
Merit: 258

Which is the first FAN ? inlet or outlet fan. ?
What Fan model are you using that gives you 2000rpm silent fan ?
Can't it work if i replaced both fans with the silent fans ?


I replaced the outlet fan with a silent model: scythe slipstream 1900
You can't replace both as it will detect a too low fan rpm during startup.

You need to pass through the fan rpm wire (yellow one) to the slipstream 1900 one (so completely remove the yellow wire of the new fan)

I run my miner now @700 watts with the fans both around 1900 rpm. This is really silent compared  to the original values.
newbie
Activity: 16
Merit: 0
https://preview.ibb.co/jmOdDG/20171031_171454.jpg

The antminer D3
As an owner of the October batch of the antminer D3 I have good news. I now run my antminer D3 stable @ 15Gh/s with just 750 watts.  Cool
I decided to go for a mod, because I couldn't run the fans at full speed because of the noise. Therefore I could only run 13 Mh/s @ 850 watts before the mod, which is now not very profitable. Cry

The mod:
To get there I tried to reverse engineer the power circuit of the antminer D3 mining boards. Unfortunately there is some chip which I still don't know the specs from (labeled ADP BDY+), but I found out it's controlling the PWM of the mosfets.
So I tried changing the resistors around it and found out that changing the resistor R80 controls the voltage. Woop Woop Grin
So if you want to do the mod I advice to replace R80 by a 25k ohm potentiometer. The voltage can be measured over C948

Improvement:
without the mod the total voltage supplied to the asic chips is fixed @ 8.15v on the October batch. That means 1300 watts for 19Gh/s
After the mod the voltage is fully adjustable by using the potentiometer. It also allows to increase the voltage for overclocking if you want to do so.
But overclocking is not my goal, I wanted a silent miner: Therefore I now run my boards @ 7.1v @ 430 Mhz stable. That means 750 Watts for 15Gh/s
That is 50 instead of 68 watt per Gh/s  Cool

Photos
The mod is quite easy if you have some proper soldering skills, but it's tricky if you don't have the proper tools / not have a steady hand...

https://preview.ibb.co/cYmyDG/20171031_163632.jpg
upload gifs online

ps. I will make new higher res zoomed pics soon.


Other possible mods:

Fan mod: (only when undervolting)
as I don't like that noise at all I also did some fan mods. I added a voltage regulator on one of the fans to decrease the noise during startup. cgminer won't allow you to go bellow 5000rpm othwerwise the miner fails to start.
 Furthermore I replaced the second fan with a 2000rpm silent fan. To make this work you have to use the yellow wire (fan rpm) from the first fan as wire for the 2nd fan. Otherwise it detects a too low fan speed on the second fan.
I can say that running both fans @ 2000 rpm is acceptable to run it in a living room now.

Power supply mod: (only when undervolting)
By default the power supply runs @ 12.2v. I used the potentiometer inside to make it run @ 12.05v. This saves a few watts of power as well. Furthermore I added a regulator on the fan, to run it at 5v as this  small fans makes an annoying high frequency noise when running at full speed.


Support
I hope this information does inspire you and help you improve the efficiency on the antminer D3. I hope to improve the mod: as I want to look into a software mod to enable changing the voltage from software. This would really open up the possibilities for all the users.
To get there I still look for a copy of the November miner firmware as bitmain is not supplying this yet. If one can login using ssh and make a full copy of the all the files that would be really welcome.

Support on this mod project is more than welcome as I want to have a spare D3 for modding the software. A (damaged) donor D3 or S9 would be very welcome as well, as this baby really needs some mods too Smiley

DASH: XpppzJw4PJyTYYEJNf78Zt1DrHVAA7ogvx
BTC: 1Na1A2pBSWn6ZEw3mSG9NLpQY77brWcfue


Impressive, well done. Undervolting would void the warranty prob like with oc.


Which is the first FAN ? inlet or outlet fan. ?
What Fan model are you using that gives you 2000rpm silent fan ?
Can't it work if i replaced both fans with the silent fans ?





full member
Activity: 348
Merit: 119
Hello , and thanks for share , i m waiting 1 for batch end of november , difficulty is very stuck now.
it 's very interesting to mod i think , yeah a good point would be to have mutli algo possible , buyt i think it s a dream , bitmain dont care about customer , buy a product 2 month before is just a trap ...
but anyway , i'll could have photos of D3 for the next batch , and probably have photo of l3+ 1-10 nov batch soon for you Smiley
member
Activity: 70
Merit: 10
At least you have better solution than Buttmain  company. Those idiots does not finds any single solution for their clients.

Thank you.
newbie
Activity: 16
Merit: 0
WARNING THIS WILL VOID THE WARRANTY ON YOUR MINER

https://preview.ibb.co/jmOdDG/20171031_171454.jpg

The antminer D3
As an owner of the October batch of the antminer D3 I have good news. I now run my antminer D3 stable @ 15Gh/s with just 750 watts.  Cool
I decided to go for a mod, because I couldn't run the fans at full speed because of the noise. Therefore I could only run 13 Mh/s @ 850 watts before the mod, which is now not very profitable. Cry

The mod:
To get there I tried to reverse engineer the power circuit of the antminer D3 mining boards. Unfortunately there is some chip which I still don't know the specs from (labeled ADP BDY+), but I found out it's controlling the PWM of the mosfets.
So I tried changing the resistors around it and found out that changing the resistor R80 controls the voltage. Woop Woop Grin
So if you want to do the mod I advice to replace R80 by a 25k ohm potentiometer. The voltage can be measured over C948

Improvement:
without the mod the total voltage supplied to the asic chips is fixed @ 8.15v on the October batch. That means 1300 watts for 19Gh/s
After the mod the voltage is fully adjustable by using the potentiometer. It also allows to increase the voltage for overclocking if you want to do so.
But overclocking is not my goal, I wanted a silent miner: Therefore I now run my boards @ 7.1v @ 430 Mhz stable. That means 750 Watts for 15Gh/s
That is 50 instead of 68 watt per Gh/s  Cool

Photos
The mod is quite easy if you have some proper soldering skills, but it's tricky if you don't have the proper tools / not have a steady hand...

https://preview.ibb.co/cYmyDG/20171031_163632.jpg
upload gifs online

ps. I will make new higher res zoomed pics soon.


Other possible mods:

Fan mod: (only when undervolting)
as I don't like that noise at all I also did some fan mods. I added a voltage regulator on one of the fans to decrease the noise during startup. cgminer won't allow you to go bellow 5000rpm othwerwise the miner fails to start.
 Furthermore I replaced the second fan with a 2000rpm silent fan. To make this work you have to use the yellow wire (fan rpm) from the first fan as wire for the 2nd fan. Otherwise it detects a too low fan speed on the second fan.
I can say that running both fans @ 2000 rpm is acceptable to run it in a living room now.

Power supply mod: (only when undervolting)
By default the power supply runs @ 12.2v. I used the potentiometer inside to make it run @ 12.05v. This saves a few watts of power as well. Furthermore I added a regulator on the fan, to run it at 5v as this  small fans makes an annoying high frequency noise when running at full speed.


Support
I hope this information does inspire you and help you improve the efficiency on the antminer D3. I hope to improve the mod: as I want to look into a software mod to enable changing the voltage from software. This would really open up the possibilities for all the users.
To get there I still look for a copy of the November miner firmware as bitmain is not supplying this yet. If one can login using ssh and make a full copy of the all the files that would be really welcome.

Support on this mod project is more than welcome as I want to have a spare D3 for modding the software. A (damaged) donor D3 or S9 would be very welcome as well, as this baby really needs some mods too Smiley

DASH: XpppzJw4PJyTYYEJNf78Zt1DrHVAA7ogvx
BTC: 1Na1A2pBSWn6ZEw3mSG9NLpQY77brWcfue




Any update on posting a new higher res zoomed pics ?

sr. member
Activity: 336
Merit: 258
hello @blissz on the board have PIC16F1704? if we reprogramm this pic we can add more algo for mining? thanks

Probably this is possible, but this will be a lot of work as both cgminer / the pic and also the asic software must be adjusted. I think it's possible for a bitmain programmer to make in a few days, but for me / any other programmer we have to rewrite the software completely which takes months I would say.
sr. member
Activity: 336
Merit: 258
Do you have a mod ‘s schema?

simply remove the R80 resistor and put the potentiometer in it's place. 25k is what I use, but you will be fine with anything between 10k - 50k I would say. A fine tuning potentionmeter makes adjusting a bit easier.
legendary
Activity: 1260
Merit: 1010
hello @blissz on the board have PIC16F1704? if we reprogramm this pic we can add more algo for mining? thanks
newbie
Activity: 68
Merit: 0
Do you have a mod ‘s schema?
newbie
Activity: 44
Merit: 0
do you run the miner on another algorithm?
sr. member
Activity: 800
Merit: 294
Created AutoTune to saved the planet! ~USA
Do you have a L3+ of if I snapped some pictures of it's board could we do the same with the L3+ and get better efficiency.

I don't have an L3+ but if you can make a good closeup photo of the electronics near the 4 mosfets, I can take a look for you

Next time I crack one open I will. (I would say soon but I put a bunch of exhaust vents on them so it's a bitch to have to open one up now since they are dual exhaust hooking up to miners to one pipe.

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