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Hi everyone, I decided to share my Bmminer edit for T9+ (and tested), here are the mods:

- Reduction of the consumption of 300W approximately !!!
- Delete Pic Flash ERROR (now working)
- Custom Fan Management, run with VERY LOWEST NOISE !!!

The usual procedure:
Rename the Bmminer Bmminer-Old in / USR / BIN to be able to restore it if needed .... Then replace it with mine, do not forget to give it the right to execution "RWXR-XR-X"

Download:
http://www.k-upload.fr/afficher-fichier-2018-11-17-1cfabf3eabmminert9eco.zip.html

All the reviews and your comments are welcome !!!!!!
And for a small donation do no hesitate to contact me in PV ;)

Thanks !!!

hey precisely I try to take control of the fan but I can not ... waiting to change the temperature range in the control fan

is this the asicboost/version rolling version of bmminer?

No sorry, just changed card voltage...

Wow 300 watts reduction?!? :o  How low did you set the voltage?  I set mine to 780 as a test and while the temps run lower & fans are little slower/quieter I'm only seeing very minimal power savings at the wall for some reason..  As in at fixed 450 mhz frequency, 4 watts per card so ~16 watts less reading on my kill-a-watt:


(The typo is theirs in the code.. lol)

I got the fans tweaked exactly how i like them now!  Instead of the annoying way too fast or the ramping up & down over & over, I can basically now set a goal temperature & the fans auto-tune accordingly.  To me this makes a lot more sense than the nonsense they build into the antminers. Wow that code of theirs on github is a mess.

But yeah it'd be cool to know what you changed. :)

Thx
Bill

Hi, in fact I change the original tenssion of 870mv to 810mv which is largely sufisant (have can go down edge and keep the stability), with setting pushed and some small mode I managed pushed the efficiency at 0.095j / T (original 0.133j / T) without asicboost ... the official firmware asicboost bitmain is a disaster ... and I also change the management of the fan, in the same spirit as you;) finished them fan has the balloon for nothing! but for the general public I kept a very wide beach ...

Persso, my T9 + is coded with fan between 20 and 40% and a trigger temperature range at the top speed from 95 ° and full speed (40%) at 105 ° ... but this is only my setting for my environment only;)

PS : if you copy me your kernel newspaper I might be able to tell you where your lack is ... and what to modify to improve this;)

OK that's cool but I have mine set to 780 & I'm not seeing as dramatic of change as you.. Maybe you're changing in different spot in the code?

my changes, only:

810mv and 600mhz .... 11 000gh / s for 1100W on the wall 220v

Odd wonder why you see more of a decrease.  Can you share the code or snippet or at least example line where it's changed? thx

#ifdef T9_18
    if(hashrate_GHz>=12000)
        vol_value=810;
    else if(hashrate_GHz>=11500)
        vol_value=810;
    else if(hashrate_GHz>=11000)
        vol_value=810;
    else if(hashrate_GHz>=10500)
        vol_value=810;
    else if(hashrate_GHz>=10000)
        vol_value=800;
    else if(hashrate_GHz>=9500)
        vol_value=790;
    else if(hashrate_GHz>=9000)
        vol_value=780;


#ifdef T9_18
    if(freq>=650)   // hashrate 12000
        vol_value=810;
    else if(freq>=625)  // hashrate 11500
        vol_value=810;
    else if(freq>=600)  // hashrate 11000
        vol_value=810;
    else if(freq>=575)  // hashrate 10500
        vol_value=810;
    else if(freq>=543)  // hashrate 10000
        vol_value=800;
    else if(freq>=516)  // hashrate 9500
        vol_value=790;
    else if(freq>=491)  // hashrate 9000
        vol_value=780;

OH!! You changed in completely different area than me.. I changed the "working voltage" section..  I'll have to check out what's different in that section you edited it in. Thanks

just try my bmminer at the beginning of the post, to check if there is an error in your code;)

Well i use fixed frequency not autotune. That's one reason I didn't edit in the same section as you. In other words I use section where volts are set by frequency not by hash rate. At least that's how I interpret the code.

me to , i'm not use autotune, "autotune" is very badless ....

I finally got around to testing more & come find out that in driver-btm-c5.h I had to change:


to


Before it'd actually USE the voltage set.  Logs would SAY it was setting/using the lower voltage but Watts read at the wall didn't change much if at all until I changed that.  So far the best I've found is 710 at 200Mhz gives 1200+ GH/s for only ~140 Watts per card which is MUCH better than the same speed at 235 Watts per card before. Saving 95 watts per card at 200mhz!

Keep in mind my goal in testing was to try & get the power usage as low as possible yet be reliable & not overly concerned with the hash speed thus running at 200 mhz.  1200 GHS is pretty respectable for 1 card using 140 watts.  I should be able to get 3600 for ~420 Watts & very low heat & low/quiet fans.  (It's very quiet now at only 41C & 2000/2400 fan)  

Now I need to test at 710 but raise the speed as long as it's reliable & compare the watts per GHS.  Test with all 3 cards again as well but I was interested in lowering power usage thus only using 1 card.

how you upload a file ? is there any guide to replace that? i am using windows and putty program

Hum.... do not use putty... use Winscp ont windows ! Is very more simply !

ok now is more easy :D

how i do this (do not forget to give it the right to execution "RWXR-XR-X"? )

is simply ... in your bmminer, right click , option (or parameter or proprieté) , and click on all case show "X"

;)

Can you put the code on your fans?

No I can not ... this is a setting ONLY for me ... depending on your environment and your fan it could cause you a lot of trouble! so sorry ...

Ps : you are tested this ? what your consuption at what frequency at your wall ?

---

i tested

but i see that one temp sensor is not working? Temp(Chip1)   all are 0
fans are 3000  rpms and 4200 rpms
temp on chip2 is 90 max

hi , temp(chip1) show all 0 is normal , is bad code on original firmware ... i have "coded" a correctif for this if you interessed ;)

Normaly, with my Bmminer, your miner is running with lower noise compare to original bitmain (or custom) ... you confirme this ?

my miner is still noise....i cant make it more silence? i dont care if is running on lower h/s i want the fan to be arround 3000rpms

cant understand why this is so noise ...i have l3+ and d3 and there realy silent

You try it :) ? please return your experience and your power at wall ;)

Can anyone reupload this file? I cant download it.

link is not working.

Hi , my "mod" is now expired, no contain AsicBoost, no interest at this time...

Now bitmain release T9+ 2019 firmware with multi option and eco mode, is very good for T9+ (only close SSH port is bad) , i thinks not better existing mod for eco ... 10.5TH at arround 950w ... is very good for T9+ ...

Thanks for interesting by my mod  ;)

t9+ with 2019 firmware achieves 10.5TH around 950w !?
thats very nice

But warning, is not possible to downgrade after upgrade... return to original firmware is not possible !!!! (but only possible, for easy, with SdCard)

 8) with pleasure