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Author Topic: My S9 Heater version  (Read 1077 times)
thierry4wd
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December 31, 2019, 04:05:26 PM
Last edit: January 01, 2020, 12:31:58 PM by thierry4wd
Merited by philipma1957 (12), AlecMe (10), frodocooper (10), vapourminer (5), favebook (3), Heisenberg_Hunter (2), mikeywith (1)
 #1

Hi all, i try to recycle part of miner ...

I have take all parts, is funny Smiley :

-T9 case
-T9+ controler
-S9 hashboard
-My custom firmware (but compatible with LPM for exemple or other)

I try at :
-525mhz/850mv (max temp 62)
-700mhz/910mv (max temp 80)





Just look fan speed and temperature Smiley , ambient temp is arround 22c , Very good resultat !!! and very low noise, the psu make more noise :p, by very low cost (free) just make 2 hole (arround 50-60mm) Smiley

Just for precision, on my "calculs' is very important do no make more larger of hole for assure to make air pressure at center hashboard at low speed fan, make hole at perfect center of miner at two side (look picture, so in absolute, juste turn the "in" fan).

For finish, VERY IMPORTANT, air flow for the two fan point external... so, air flow take on miner ant outake external ! the fan blade need place in interne... just see picture ! for assure, on power on, the air need to outake on 2 fan ! no admission, admission is NOW on two news hole ! Wink

And, VERY IMPORTANT to, you need TWO SAME fan !!! if not, the air flow is not correct, and is possible one part of hashboard is not in air flow, and overheat !
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judypug1956
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December 31, 2019, 10:31:44 PM
 #2

I don't have access to my philipma1957 account and this one does not have any merits.

When I get to my philipma1957 account I will drop some serious merits on this.

your design is way better then mine .

I have a s9 to work on I will do so later today.

I will do   a copy of your design.  Nice work. Cheaper then my idea and easy to do.  Nice!

1956jUdYPFwiBSzt9AECdWj3KE4WV7taiM I can't do 1957philma.. for btc address the i are not allowed This is a secondary account for Philipma1957, don't do business with this account deal with philipma1957
thierry4wd
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December 31, 2019, 11:45:54 PM
 #3

Thanks ! with pleasure Wink

I have edit my first post for more precision  Grin


And . . . .



!!!!!!!!!! HAPPY NEW YEAR !!!!!!!!!!
philipma1957
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January 01, 2020, 12:08:01 AM
 #4

Here are 12 merits.

To anyone  that reads this  he truly took my design and really improved it .

Nice job.

Lets give him a few more merits as he deserves them.

I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
thierry4wd
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January 01, 2020, 12:25:08 AM
 #5

Thanks ! I'm embarrassed Smiley

Hum... after reflection, i thinks, is possible to improve efficiency of cooling, by make 2 litle hole (arround 20mm) at two side...

In this "project", my idea is make directly flow at center hasboard, but litle problem, the up and down chips at border hashboard is litle more hot, is not a problem (miner show final temp by chips 63 i thinks), but just funny to improve this :p
philipma1957
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January 01, 2020, 12:50:32 AM
Last edit: January 01, 2020, 03:04:39 AM by frodocooper
Merited by frodocooper (2), Heisenberg_Hunter (1)
 #6

I think 💭 a few holes on each side may improve even more.

maybe a little smaller.  lower 1/3 from intake

higher 1/3 from output.
      _________________
      |   o                        |    
<    |                    o       |      <<<<<<<
      |________________|

this may work better.

but your idea 💡 is easy and cheap.

I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
abeandund
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January 01, 2020, 01:10:35 AM
 #7

Are both fans exhausting: drawing air in, over the board, from the drilled holes?
thierry4wd
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January 01, 2020, 12:30:05 PM
Merited by frodocooper (3), vapourminer (1)
 #8


                      __________________
    fan flow      |    o                     o   |    fan flow
<<<<<<<<<|               O (50mm)  |>>>>>>>>>
                     |    o                     o   |
                     ---------------------------


Is my idea Wink  two side, so 8 new holes arround 20mm i thinks is good size Smiley i have expected air flow, and up and down the flow is litle down, so by 8 news litle hole (not to big to respect the pressure) compensate this "problem" for more efficiency Smiley
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January 01, 2020, 09:49:49 PM
Merited by vapourminer (1), Heisenberg_Hunter (1)
 #9

That's an amazing design indeed, however, I have one concern which is the pressure on the fans' motors, I don't know much about physics and airflow, but I think when two fans are pushing air in the opposite directions they will collide with/against each other thus effecting the air flow specially in the middle area.

to illustrate more using your design.

                      __________________
    fan flow      |    o       ***      o   |    fan flow
<<<<<<<<<|             ***           |>>>>>>>>>
                     |    o       ***      o   |
                     ---------------------------

where I put the *** is the main area of concern, the hot air around that area may stay there for a little longer than the board can handle ,also both fans need to put extra work to be able to spin against one another, fans are cheap, but if they break every couple days then well !!

if i am wrong please correct me

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January 01, 2020, 09:55:44 PM
 #10

your purpose is true only if the hole is smaller than air flow debit ! the proof is here, temp is very low on my configuration Smiley

with my design, the hole are sized in fonction, so, if you turn the fan at full speed, ok, the hole is to small for this, but not interrested by this, my idea is make small pressure, just for good flow, at low speed fan Smiley

ps : Philipma1957, you have try this Smiley ? what results ?
philipma1957
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January 01, 2020, 10:45:37 PM
Last edit: January 02, 2020, 01:12:12 AM by frodocooper
 #11

right now i am monitoring the solo.ckpool super rental trying to squeeze every dime i can for the ten of us in it.

so i did not get to play with the s9 i have at home.

i did realize that holes could be covered and various patterns of air flow studied.

i e

o.            o.           o

              O

o.            o.           o

do all  holes above on the two sides. simply cover a hole with duct tape to tune best heat results.

the fans could be

<.   >.  maybe best

>.    >

<.    <

>.   <.     i don’t fans will work well this way.

it is a project i will get to very soon.

I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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January 01, 2020, 11:08:49 PM
 #12

your purpose is true only if the hole is smaller than air flow debit ! the proof is here, temp is very low on my configuration Smiley

Temp is low might also be due to a few  other reasons, having a single board in the miner is a huge advantage, also I am not sure where the temp-sensor is exactly located, if it's far from the middle, then the reading can be way too off , if i am not mistaken the temp sensor is somewhere near the edge of the board (exhaust side), so in theory, temps in that middle part which i am worried about could very likely be a lot higher than what shows on the miner status.

Please don't get me wrong , I am not underestimating your abilities, I know you know much better than me in this field, I am just trying to discuss potential issues which might require some tweaks.

Thanks.


right now i am monitoring the solo.ckpool super rental trying to squeeze every dime i can for the ten of us in it.

how?where?what?  Embarrassed

did you arrange this on forum? wish you best of luck.

thierry4wd
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January 02, 2020, 10:22:54 AM
Last edit: January 03, 2020, 01:44:08 AM by frodocooper
 #13

[...]

Yeah ! absolut no problem !!!  Cool if you find better idea i take this with pleasure !!! so i don't a god  Cool

So, for proof, i have take directly my finger at heatsink !!! VERY COLD at center lol (normal ! is directly in enter air flowing !)

and for fan direction, i thinks my solution is better, i don't tell this so this by me, just i thinks is best idea... Smiley



For fun ! overclock at 800mhz/930mv (hashboard come by 13th model, bad efficiency) by fan fixed at 100% , just look temps ! :p and at this time, i have removed fans, in running mode, and i touch the headsink, and, is not to hot Smiley (ambient temp is arround 20c)

Ps : i have release my personal firmware for free for all, if you want try and take critique Smiley
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January 11, 2020, 04:26:53 PM
Merited by frodocooper (5), vapourminer (1)
 #14


                      __________________
    fan flow      |    o                     o   |    fan flow
<<<<<<<<<|               O (50mm)  |>>>>>>>>>
                     |    o                     o   |
                     ---------------------------


Is my idea Wink  two side, so 8 new holes arround 20mm i thinks is good size Smiley i have expected air flow, and up and down the flow is litle down, so by 8 news litle hole (not to big to respect the pressure) compensate this "problem" for more efficiency Smiley

Can't see pictures but here is something that may be interesting for you to know:

Consider using a dremel to make non circle holes (such as square or octagon). Circles make more noise (like a flute).

Just remember: to reduce noise, avoid circles.


Someday i will try your idea, when i move to a country with actual winter.

██████
███████
███████
████████
BRAIINS OS+|AUTOTUNING
MINING FIRMWARE
|
Increase hashrate on your Bitcoin ASICs,
improve efficiency as much as 25%, and
get 0% pool fees on Slush Pool
thierry4wd
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January 11, 2020, 11:46:08 PM
 #15

Yes i totaly agree by this ! Wink

but on this mod, the pressure is very low! so, absolute not noise by holes, only litle noise by fan Wink
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January 13, 2020, 10:07:51 PM
Last edit: January 14, 2020, 01:17:11 AM by frodocooper
 #16

[...]

Love your project.

Do you have a link to your firmware?

Thank you.
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January 13, 2020, 10:46:23 PM
Last edit: January 14, 2020, 01:18:09 AM by frodocooper
Merited by frodocooper (2)
 #17

I think this is the his firmware which he now gives for free according to the information he added to the thread > https://bitcointalk.org/index.php?topic=5127323.0

Despite the doubts raised by respected member Kano, I for some reason think that thierry4wd was honest about not altering the bmminer (aka stolen and modified cgminer  Undecided) and he somehow patched it and got full control over frequency and voltage, I tend to think that thierry4wd is a trusted member who puts a lot of effort for the mining community.

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June 11, 2020, 07:59:25 PM
 #18

Bump

You don't have tested my mod on your own S9 Smiley ?
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June 11, 2020, 08:15:01 PM
Last edit: June 12, 2020, 04:09:27 AM by philipma1957
 #19

I look at your Idea I looked at my idea.

I came up with a different idea.

I will show it next week.

These new boards are better then s9 boards.

Since I am an idiotic stupid moron that can't solve complex math or code very well I have to reduce myself to simple mechanical ideas and designs.

Once these are made maybe the firmware is tweak able and can be improved upon but I simply don't know any thing about firmware for the new gear.

I can operate it I can screen shot it.  Playing with its code is far beyond me.  I simply don't know how to do that.  In fact I don't even know how the mining code looks like.
I don't know what the developer did.

So I am not sure if it even uses cgminer or bminer or another firmware.

I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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August 13, 2020, 01:47:48 AM
 #20

At what wattage was this able to run at? I have to admit I am always intrigued in turning older miners into quiet low wattage lottery devices for the solo pool!
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