Perhaps someone doing greenhouse farming would like to use the heat and wind + paying for electricity.

you could share profit or get free farming products

have u tried this ?

https://bitcointalk.org/index.php?topic=3835841.0

might get you some extra greens from the farmer

in the link I gave this one is on page 2:
https://bitcointalk.org/index.php?topic=1739630.msg17440217#msg17440217

And this one:
https://bitcointalk.org/index.php?topic=1739630.msg17440489#msg17440489

You guys are correct!!!
The Label doesn't give the full answer !!!

For all the people who read your answer's they might not know as much as you guys.

Do they have 120V or 240V?
50Hz or 60Hz ?
Does it matter ?

Do you RECOMMEND that everyone push their PSU's to the limit according to the label on their PSU's whatever brand, age (manufacturing year), earlier usages if not new from the store, voltage, ...

If not, WHY ?

Everything will always go well until it goes wrong !!!

THIS is how:

" ... SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" ... "

I use the program "Putty.exe" on windows 10 machine to SSH into my z9 mini.

Step:
0. Start Putty.exe and input ip-adress for machine to SSH into. (For my z9 mini in my home network ip = 10.0.1.101)
1. Press "Enter"-button
2. First time putty.exe SSH into a machine it ask's you to approve that machines ssh_host-key
3. Press "Yes-button" on pop-up window and now the terminal window opens where you type in your commands
4. root
5. Press "Enter"-button
6. root    (if factory default or use the password you've changed to when login in to your z9 mini)
7. Press "Enter"-button
8. cd /config
9. Press "Enter"-button
10. vi cgminer.conf  (file cgminer.conf opened up in the "vi"-editor)(BE CAREFUL - google vi editor and learn howto use it)
11. Press "Enter"-button
12. use "arrow"-keys and move down to "bitmain-freq": "500"
13. Press "i"-button (this is for insert-mode) (be VERY careful NOT to change/delete/add anything else but...)
14. change "500" to "768"
15. Press "Esc"-button (but ONLY once)
16. :wq!
17. Press "Enter"-button
18. cat cgminer.conf
19. Press "Enter"-button
20. Now you see the text in cgminer.conf and can verify that you have changed to "768" and nothing else has changed.
21. /etc/init.d/cgminer.sh restart
22. Press "Enter"-button
23. Now your z9 mini reboots and voila !

This will ONLY work if that specific z9 mini machine can handle 768 MHz !!!

My specific z9 mini will NOT run solid on 775 MHz or above.

IF I go above 768:
At 775 it starts up all three chains without errors but after 5-15 minutes or so I will see "KSol/S(RT)"-value going down slowly and continue down and I will go into page "Miner configuration - Advanced settings" and choose 750 and then press "Save&Apply"-button at bottom right corner.

z9 mini restarts at 750 MHz

(Going to high and it will not even start up all three chains !)


Now I go thrue step 0-23 and again set it to 768 MHz.

I've done this a few times and now tested and know that MY specific z9 mini can handle 768 MHz but nothing above that.
Now I just let it run and run and run at 768 MHz.

Only time I restart is if I change mining pool or try any different settings at some miningpool and if thunder and lightning outside I will unplugg my z9 mini PSU from the 240V connector in my wall.

BUT it's easier to use Chrome to change the value to 768 or whtever

(There are youtube video and other poeple on this forum that already explains how that is done!)

https://bitcointalk.org/index.php?topic=1739630.0


You don't want to run your engine on max RPM to loong.

It's the same with PSU's.

I see that I made a mistake under "Password" regarding "n="

You choose some name and / or number that makes it easy for you to identify like:
z9mini001
z9mini002

or whatever suits you!!!


Login to your z9 mini's number 1 - 3:
Goto Page "Miner Configuration - General Settings"

z9mini number 1
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini001

z9mini number 2
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini002

z9mini number 3
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini003

and so on ...


Best of luck!!!

If you point to
Url : stratum+tcp://prohashing.com:3336
it WILL be autoswitch.

If you only want to mine a single coin you will need to have something like this:
password : c=zcash n=You_choose_some_name_and_or_number_that_makes_it_easy_for_you_to_identify
This is if you wan't to hash only one coin and in this example it was Zcash.

Letting all your machines mine one and same single coin (not solo mining) WITHOUT converting will give lower fee AND share rewards you don't get in my case.

I convert to BTC and LTC.
Because I get immidiate conversion on prohashing and can choose have many % of each like 80% BTC and 20% LTC conversion I wan't I do not risk loosing as much because of the loong unknown time it takes for MPH to do the autoexchange since BTC can move alot in that time.


Furthermore on MPH the multialgo on port 17023 is not in sync whith Whattomine.com and also seems to move big hashing-power between the different algorithm's in a way that I beleive influense the other algorithms negatively.


As I understand it, on prohashing.com I can be rewarded for parts of work my machine done (read "Help" on their site) even when "too late" and I seem to get better "2hr avarage solrate" hashingspeed for my z9mini and for other friends they have been getting ridiculus speeds on their Innosilicon A9 ZMaster's when loggin in to them as well as on prohashing "2hr avarage solrate" hashingspeed both in "balance" and "performance"-mode with different firmwares AND the problem they had with there A9's whatever firmware with restarting because memory full seems to be gone. Their logs dont't get clogged up with as much as with MPH, nanopool and flypool and others. Before they had to restore to factory defaults between 1-2 weeks apart just to keep them spinning for more than something like 8 hours before their A9's would restart. After facory restore they could get 1-1.5 days and for every restart it would get worse.


Seems like prohashing.com calculates each and every machines hashingpower and timedelays and manage to choose which work/coin/difficulty to give to each machine with better earnings as a result.

My z9mini has also shown quite a few impressive 2hr delta hashing speed up towards 20ksol/s.
But hashing speed goes up and down.


I have also "found block":
Algorith     Coin        blockrewards   fee            difficulty         value       status
Equihash   Komodocoin   3   0.001356   1,443,172,861   $2.9901   Mature


I just say that give prohashing.com a day or soo if you feel that you are not satisfied with the miningpool(s) you are using now!


(And I live in Europe so I do NOT have anything to do in any way with prohashing other then being a little bit more satisfied and hopeful with my limited earnings.)

If someone else tries prohashing.com I hope they will give their oppinion whatever it is !!!

About firmware versions and overclocking:


I've been doing some serious digging!!!


When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have
"Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ? ? ?
3. Thu Aug 30 14:57:48 CST 2018 = ? ? ?
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)


May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !


Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi-bin/minerAdvanced.cgi"-file and changes value and saving (after you already made the filesystem writable). After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install(upgrade) the May 26 firmware using the page "System - Upgrade" I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Howto - Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336
(3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2
(imine2 is the username I choose to register with at prohashing.com)
Password : n=z9mini101
(I choose the name z9mini101 where the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine for yourself and prohashing.com. Important for them and you if you have more than one machine being able to distinguish each machine.)


May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and THIS LINK should work for 30 days from october 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

Yes "TGJ", it's pretty lame in your world.
I guess you dont't believe in "reward whom so deserve it!".

In my world it's possible that some people sometimes actually understand the time and effort I put in and the time and money they save/make thanks to me and my work. It's not like I expect everyone I try to help making a donation. Then I would not be in this forum trying to help!!!

These steps, I hope, explains how to change the hash-value for user: admin into another hash-value for which you yourself know the plain text password like for user: guest and for which the hash-value should match.

And after a reboot, I hope, now making it possible to login as user: admin

Kind of "reset" the admin password to a known password IF it's not possible to restore to factory settings i any other way WHEN you forgotten the password to user: admin

As far as I've been able to pursue this without actually owning one myself this is hash-value for user :guest in at least one Innosilicon A9 ZMaster from batch 1.
"username": "guest"
"password": "b015aa9f37299ed52c30137d447f97b1b176b341145cf7fe5f9a92e89292e8db"

AND the hash-value above will make this A9 accept "guest" as password for user: "guest" (without the " " )

This, I hope, these steps shows and will do for you!
(I did not have the hash-value above when I first wrote this. Have actually seen it IRL.)

I hope this will do!

Uploadfiles.io
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

https://ufile.io/fwcqd

(This link should work for 30 days from now!)

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

https://bitcointalk.org/index.php?topic=4610213.msg45329101#msg45329101

good luck!

You can adjust miningspeed on this link day by day and se if this helps understand miningspeed vs mined ZEC.

https://www.cryptocompare.com/mining/calculator/zec?HashingPower=193785&HashingUnit=H%2Fs&PowerConsumption=2500&CostPerkWh=0.11&MiningPoolFee=1

I have set hashingpower to equal right about one(1) Zcash per day/week/month/year per today.

If difficulty increases you will have to increase hashingpower or you can look at Mined per day/week/month/year decrease and calculate what percentage profit decreases per day/week/... at given hashinhpower. Then just calculate your your hashingpower in percent of 193785 H/s and calculate your own or whatever you want to calculate.

Don't forget that mining should not be done to 'get rich quick'. I think you need to mine/buy/trade and Hoodl "cryptos" and this should be done longterm.

One should not "place all eggs in one basket". If you don't go for "Gold" like Bitcoin. Will probably be like Gold backing all other succesfull cryptos. (My personal guess.) But will only be safe like gold. Will probably go to the moon in Fiat money value but we will not understand Bitcoins true value until we get Bitcoin in Trayounce of gold/silver/...

When Bitcoin or cryptos at large goes to the moon in Fiat money value that can also happen because Fiat money looses it's value because hyperinflation and/or Fiat money debt is transfered into cryptos.

I guess that in the future using Bitcoin will be like moving Gold to settle big deals.
I can absolutley be wrong and if something happens in the future that gives me good reason to reconsider my belives I will surly do soo.

I would recommend listening too Bitcoin Ben, Roadtoroota, Greg Hunter, maneco64, Reluctant Preppers, x22report, x22report spotlight, SGTreport, The Money GPS, Dustin Nemos2, prayingmedic, Seething Frog, Amazing Polly, Stefan Molyneux, Jordan Petersen, Michael Trimm, ITM Trading, Saledaddy1, Simon Harris, Rebel Media, jsnip4, AMTV, Sarah Westall, Clig High, corbettreport, Judicial Watch, RonPaulLibertyReport, Project Camelot, Dr. Steve Turley, Erin T Scott, Bill Whittle, The Rubin Report, ... on youtube.

All of these youtubechannels will give you more than enough information. You will feel informed
 
Hope this helps!

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

i don't have one but been following this thread if I should get one!

SPEED-problem:

TEMP
if ok...

Powersupply (APU) good/bad
if ok ...

try factory reset to get them retune speed!

Choose miningpool with low latancy
https://investoon.com/mining_pools/zec

(Ping miningpools you are using to check latency)

LOGIN-problem:
If A9 has reset botton on controller than perhaps it's possible to make hardware reset !?!?
else...

This could work!?


SSH
user: root
password: blacksheepwall


I suggest you use same hash as you will find in another of your A9 where you still can login and still know password OR use same hash as user: guest. meaning hash value for user: guest should equal password: guest
try to logg in as
user : guest
password: guest
(if this works than you know that user: guest has password: guest)

when SSH into another A9 do this:

cd /config
Press "Enter"-button
cat web-users.json   (will show what is in file witout edit capability)
Press "Enter"-button

(write down hash value for admin and/or crossreference that hashvalue for user: guest is the same in every A9)


SSH into problematic A9

cd /config
Press "Enter"-button
vim web-users.json  ('vim' = editor)  (You should google keyboard commands for vim-editor)
Press "Enter"-button
i    ('i' = insert mode) (NOW u can change hash for admin) (BE CAREFUL)

(when done do this)
Press "Esc"-button
:wq!
Press "Enter"-button
(You will get warning that read only or something.)
Press "Enter"-button anyway


(verify that your change has taken effect)
cat web-users.json
Press "Enter"-button

systemctl restart cgminer  (restart A9 from within SSH session)
Press "Enter"-button



If you used hashvalue for password: guest then you MUST remember to change admins password from 'guest' to something other!

Good luck!

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

if it's possible to understand how than perhaps it's possible to "pipe to null" for values that make A9 decrease speed but I guess one would have to manually set fanspeed to make sure it doesn't overheat.

don't have one yet but just giving my thought so someone else with more knowhow can see if my idea can be part of a solution !

perhaps it's like antminer z9 mini where it seems like they have limited max power to the chips !?!?
https://bitcointalk.org/index.php?topic=4610213.msg45232358#msg45232358

if you Ping
europe.equihash-hub.miningpoolhub.com

I just did it from windows 10 console "cmd.exe"
did get this ip =
45.79.223.173

(last week or so when I did it logged in to my z9 mini I got this ip=
172.104.189.59

when I right now again did it logged in to my z9 mini
-network
  - diagnostic
i get this:
**********************************************
ping europe.equihash-hub.miningpoolhub.com
PING europe.equihash-hub.miningpoolhub.com (139.162.66.203): 56 data bytes
64 bytes from 139.162.66.203: seq=0 ttl=51 time=272.381 ms
64 bytes from 139.162.66.203: seq=1 ttl=51 time=271.964 ms
64 bytes from 139.162.66.203: seq=2 ttl=51 time=272.902 ms
64 bytes from 139.162.66.203: seq=3 ttl=51 time=272.210 ms
64 bytes from 139.162.66.203: seq=4 ttl=51 time=272.375 ms
64 bytes from 139.162.66.203: seq=5 ttl=51 time=272.749 ms

--- europe.equihash-hub.miningpoolhub.com ping statistics ---
6 packets transmitted, 6 packets received, 0% packet loss
round-trip min/avg/max = 271.964/272.430/272.902 ms
***********************************************


in url you put:
45.79.223.173:20570
or
172.104.189.59:20570
or
139.162.66.203:20570

instead of :
europe.equihash-hub.miningpoolhub.com:20570

You might have problem with DNS !?!?
I give all these ip's if you have DNS problem and not yourself can ping at all.

BEST is that you ping yourself!

Just wan't to help you get going!

And I am still using 172.104.189.59 (296ms) myself but will try 45.79.223.173 because only 115ms.

I hope this helps
 
good luck!

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

Can it handle ASIC or only GPU/CPU


https://investoon.com/mining_pools/zec

You should fill in all three pool url's.

good luck!

File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)

File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)

File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)


Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

What issues

Tried factory reset???