Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 126. (Read 531168 times)

u can also get a dehumidifier that runs in there but only if its a sealed location like a house or office since it would run non stop in an unsealed location.

I'm going to go back and run some checks.  I'll let you know

It might not start hashing with a wrong URL but is there still a risk of short circuit due to condensation? Seems risky to try.. but thanks for the idea!

I'm guessing there's no way to modify the firmware?

The thing is, my source of power is a natural gas genset and I do not have grid power even close. So a back-up heater would have to be propane or natural gas fueled, which tends to give off moisture itself if it's the catalytic variety. I can probably get a wall mounted NG heater that vents to the exterior and avoid the moisture issue...

Me likey that trick! Methinks I will add that as a custom command sequence in Awesome Miner for when I do have to turn them off for cleaning and such.
Yes you are right, simple powering down does result in a rather significant temp spike in the miners for at least a minute or more.

so you purchased one in Jan  correct?

Jan 15th coins were 840
July 19th coins are  2216


let us say you spent 2 btc  on jan 15th   that would be 1680 usd

what did it earn back at 10 cent power 2000 usd   so you are ahead in usd.


now if you held  the 2 coins  you would be at  2 coins  but the 1680 usd would be 4472 usd

but if you held the coin  until today you would regret that you did not sell  them at 2997 each or 5994

then buy back when they dropped to 1830 the other day.  giving you 3.275 coins

all three cases above you made cash  you regret that you only made 200-300 so far.

you could sell the machine right now for 1000

this would put you at 3000 cash which is up from 1680 cash in January

vs 4472 cash  which is up from 1680 cash in january

vs 7323 cash which is up from 1680 cash in january.

^^^^ Do anything except that! ^^^^

If you put in bad URLs for your pools you can fire up a unit and the fans will run, albeit at a somewhat lower speed, without hashing.

I use a similar technique in reverse to cool my Antminers before shutting them down. Specifically, I change the pool URLs to something wrong (by adding an 'x' character to the domain, for example) then hit "Save & Apply". The result is the miner software restarts, but can't get work from any pools, so the fans run without the boards doing any real work. After a few minutes the output from the fans is significantly cooler.

I have to admit that I don't know if cooling them down before powering them off provides any actual value. But with the insane amount of BTUs these suckers pump out it feels like just shutting them off while hot is not a great idea.

If this is about having a miner in some shed for example, proper ventilation and heating is the answer to avoid humidity.

ya but he would need to rig up something that will control the relay at a set time of the day and he would need to have a device that separates the fan power from the controller board and the external psu while still communicating the fan speed to the miner. and he would need the same setup for the external psu because that will have the same issue the miner will have when running outside and so on and so forth. the build out for this would be terrible just to run the fans for 15 minutes automatically before the miner turns on after being shut off. it already sounds like one of those rough goldberg machines lol.

im shocked u arent commenting on him running a high powered electronic device in such conditions to begin with. i expected u to beat me to it bud.

https://www.amazon.com/NTE-Electronics-R14-11D10-12-General-Arrangement/dp/B000P9ICN8

im not sure how u will even want this done....no power to the controller means no power to the fans so you cant power the fans without powering the controller unless you hook the fans to an external power source and let them run but that requires you to switch them from the controller to the other power source by hand. if you try hooking the external power source to the fans and keep them hooked to the controller u will most likely cause damage to bother the fans power source and the controller....also the fans will probably take a hit there too. the moral of this story is dont run the miners outdoors.....they arent made to run in those kinds of conditions. and yes a garage and shed is still considered outdoors and exposed to the elements pretty much. these should be run in a temp/humid controlled location like a house or warehouse/hosting location. if your miner is run outside and burns up bitmain will tell u too bad and wont cover the machine under the warranty based on what others have posted in previous pages.



i think he wants an automated way to do this unfortunately. the first thing he should ask himself should be is it worth risking my miner running it in these conditions knowing it will kill it in an undisclosed amount of time lol. either way an automated way wont work in this case since the psu needed to power the fans will also have moisture in it since he wont be doing this manually.

Probably be easiest to connect the fans to an external controller and run them manually, you just need something that gives them the power they need.

Then plug them back in and power up the miner normally.

#2....that doesnt matter. like i said newer firmware required all 3 spaces for all 3 pools in the config page. so what works for 1 firmware doesnt always work for the later firmware which is why i mentioned this specifically.

#3....so even when the miner was reset and the default info was left that bitmain sets manually in the firmware it wouldnt mine? no static ip no pool info except the default info that gets entered when the miner gets reset right??

also does the log file show the boards as being detected?? and have u tried using the latest firmware for that miner??

Is there a way to fire up the fans on the S9 for a period of time (let's say like 15 minutes) without any power running to the the hash boards (or even controller if possible)? I have an application where the S9s will be in an relatively external environment, and I want a safe way to start them up while ensuring there is no condensation when the unit is powered up. The condensation could occur after the units have been shut down and have cooled, and the ambient humidity has condensed. Assume I cannot have a back-up heater installed.

Any simple modifications anyone can think of? Maybe a small change to the firmware?

1.  I let the miner run for about 24 hours, nothing.

2.  The miner config is identical to my other working miners.

3.  Tried this also, nothing.

well there are a few of things:

1. you didnt wait long enough for the miner to run through the check. older revs of this miner take longer for the auto tuner to run through the checks for the miner. even pre auto tuned versions took up to 45 mins or so to actually start mining.

2. you only filled out 1 of the pool info sections or if your pool doesnt use a password you left the password section blank. with the firmware i had bitmain send me with fan control and speed control it wouldnt mine using my default config which was pool info in slot 1...nothing in slot 2....and pool info in slot 3. on all of the other versions this pool config worked but not on the ones they provided me. i only found out when i reset the config and it filled in all 3 with the antminer defaults and started hashing almost right away. once i filled out all 3 section under pool info including 123 as the password the miner fired right up and started hashing. this may also be true for new versions of the firmware.

3. if you set a static ip your router may be rejecting the manual settings or your dns may be incorrect.the best way to test this is to login to the config site and go over to the reset/upgrade section and reset the miner back to defaults. you then let the miner run using the default antminer config (yes i know it will mine for bitmain but this is only temp until it starts hashing) and that way you know your miner is functioning properly. after resetting do not change any of the configs and wait at least an hour if it doesnt start mining right away.

Yes you can SSH into the miner, use root as the username and your password that you set from the GUI web interface, or the default password if you didn't set one.

You'd probably have to be very good at some programming to make any headway though, there isn't much user friendly stuff in there. Even the bmminer program is an unauthorised license violating copy of cgminer. So you're not likely to get any help from Bitmain or cgminer on trying to solve the problem.

Bitmain won't give you any software tools or advice on how to fix it yourself, their only response is "send it in for repair". Although sometimes they link you to a different firmware version for a specific problem, might try contacting them first about the error and see if you get anything useful.

Your error is probably something wrong with either the controller or the hashing boards, the socket error means they can't connect to each other.

Could be a lot of things wrong, and it's going to take a lot of deep work to figure it out.

Good luck!

BMminer is Bitmain's S9 version of cgminer and it doesn't show the version on the "Overview" page, because the "Overview" page only shows defaults until the miner is hashing.


P.S. - there are multiple pages to a log (not just the last line).

What is BMminer?  And why doesn't is show any type of version on that line?

Last line of the log is:

Start bmminer ...

The miner's fan speed is just going up and down.