you are right, spacing them will surely cost you more in cables and cords, there is however a better solution , should you face heat problems. what you can do is to quarantine/isolate the intake fans from the exhaust fans.

something like this >https://www.youtube.com/watch?v=lbFmhigZ81s

This will give you a much lower temps, as the hot air will be isolated, allowing more time for your exhaust fans to handle the hot air without the miners sucking back any of that hot air back.

i have tried this personally and it helps a lot, i used 12mm MDF to isolate , it was a stupid idea as i faced a lot of issuing in digging those squares to fit the fans, but i have access to almost free MDF sheets and they are perfect for heat isolation so i used them, but you can use just about anything cheap.

check this out > https://bitcointalk.org/index.php?topic=5032987.0

Good job bro, i hope you will be able to ROI , looks like a lot of money is spent on setting up the farm aside from the cost of asics and psus, as for the cooling, since you have that much space and relatively a small number of machines, try to keep a distance between them, that will help in keeping both temps and fans low.

thanks for your answers, i have a comment on Q4 ; seems like you didn't get me or it's me that can't put the question in a way that can be easily understood,

the question is , since we rely on LUCK for this matter, let's assume there are only 2 miners out there.miner A and miner B ! each has 50% of the network hashing power.

what if pool 'A' finds 100 blocks in  a row before pool "B" does find a single block ?

from a mathematical point of view, it's possible.
from a luck point of view , since pool 'A' has 50% chance of finding every block.

the more scary scenario is, a new miner 'C' with only 1% of the network hash leaving A and B with 49.5% each.
from a luck point of view , pool C may hit 100 blocks in a row ! which then would be very unfair for A and B, so how does the blockchain go about this ?

So until just recently '2 days ago' i thought I did understand how 'bitcoin mining' actually works. but now i came to understand that I really don't know shit  

by looking at solo miners status on antpool > https://www.antpool.com/poolStatsRankings.htm  . you can see some crazy results !

take no.20 for an instance, with 322.18 GH/s AVG. he get's to solve/find block in 74 days !.

if you look at the online calculators ,  the number to generate a block with that kinda hashing power is so  many dozen years.

now i do understand that there is a LUCK factor in all this mining process. but i am just lost in trying to understand the basic simple methodology behind this.

I did a lot of reading with no result , not the content online was not great, but simply because I am kinda slow and dumb  

so please help me understand these a few terms.

Q1- provided that every block takes 10 mins on average HOW can  these online calculators even estimate the time someone needs to find a block ?

because form what i understand the right after the blockchain is done with a block, all miners need to start working on the NEXT block, and of course the more hashing power one has the MORE results they can submit within those 10 mins therefore raising their chances to find that MAGIC number, but again to every hash submitted there is a chance of it being the right one, so if this is true. then all those calculators are worthless !.

Q2- as a solo miner , do you GENERATE / SOLVE or FIND blocks ? what is the right term to use ?

i am asking this question because  calculators like coinwars says 'estimated time to "GENERATE" . i need to understand the technical difference " if there is any' between these different words.

Q3- when solo mining ,  what happens if you get disconnected from the internet or encounter a power outage ,after say a few months ? does that  mean you have to start all over ?

no this question is the most stupid one i know, but provided that it really does take a certain time for one to solve/generate block then how is this handled? because i read on  https://en.bitcoin.it/wiki/Block


now if that statement is correct then i have another question

Q4 - if every miner has to start all over every 10 mins to hopefully solve that puzzle. what ensures that more hashing power = more bitcoins

if luck factor is THAT important ? what if someone get's so lucky too often ? what if a pool with 40% the hashing power just get's unlucky on every block ? the word luck is quite broad it always has a 50% chance , for every hash you may get to solve a block or not. so it's quite scary to me.

excuse my nooby questions, it's just too much for my brain to handle .

exactly, in fact in most cases investing directly in crypto is more profitable and less trouble. the mining game has changed, you can't compete with those large operators that have access to almost "free" power and buy mining rigs/asics at a much cheaper rate than any of us. also when it comes to large mining farms, a huge farm in the US can't compete with on in Georgia for an instance, based on 2 main factors 
1- power cost.
2- shipping cost.

if you look at large data you will be surprise how much does your location matter in terms of overall cost, when you want to transfer thousands of asics from mainland china to the states you don't expect to compete with a farm in china located next door to bitmain warehouse.

mining as for now is a big gamble, if you are not making in profit or barely making any , and you say to yourself , ok i will just turn my rigs/asics off till prices recover, then you putting yourself in a great risk, the technology is moving fast. your gears will be worthless in couple months.

in plain english, mining is not for everyone as of today, it's a real business that involves great risks and one should think twice and do all the research needed before jumping into the game. people need to understand that 2017 is long gone.

 auto-switch on Mining Pool Hub worked great

I am not sure if you are from U.S where everything seems to be measured differently , but talking from an international standard of electricity , a 3 phase set up usually comes in 4 wires  ( 3 phase and 1 neutral wire ) . now anything you measure between the neutral wire and the phase is 220v ( based on 3 phase = 380V). which is the exact set up i have here.

so what you have to do is.  get 3 main circuit breaker , connect each phase ( wire that is not neutral ) to 1 breaker. and then you going to treat each of the 3 breaker as a different source of 220v, of coz do not forget to pass the neutral to every breaker as well.

excuse my poor vocabulary but i hope you get the picture.

so been testing  a lil more than 3 days . so far as for temps i see no difference, but reported hash rate is slightly better on  "Dollemizer"  , the pool shows around " 0.72 TH" more per miner.

i am not sure about the difference of pool performance in regards to the amount of the individual hashing power " at least from a technical point of view". ever asic submits it's own shares and get paid accordingly, the calcs should be the same as in rewards per MH/s .

long story short, a good pool is a good pool and a bad pool is a bad pool ! ,

i do not think they will fit in the body, anything aside from size different should be the same, i see no harm in trying tho "at your own risk tho" , did you try the auto-tune firmware ?

well zhashpro is not a PPS pool , so usually the first day or two are not the best, also you need to realize that the difficulty on these coins is going up in a crazy way, so do not be surprised if your earnings drop to half the next day. so what you should do is use a mining calculator, based on the average of last 24 hrs, and see if you are getting anything close to what it says 10+/- % is pretty fine.

you are absolutely right, last thing one should try is hardware, in fact in many cases, resetting the setting only can fix many issues. but again this is a new field to most people , i mean the ASIC industry has very little information available online, see if you got a problem with a GPU rig you find thousends of posts on how to fix it, however on ASIC there is little to no information on troubleshooting.

as for the study purpose "of course" it's a plus beside making some $ Cheesy.  I will be happily posting any findings of mine to help the miners community.

I am not starting to test this  Dollemizer Firmware against bitmain's . setting the  frequency, same pool , same room , just about same everything on each miner.

i will put them on a test for 3 days and then compare the results of both " average temps " as well as " hash rate reported by the pool".

now unless the Dollemizer Firmware gives a better "something" then I do not see a need for someone to pay fees just for a better looking firmware.

i will report back once my results are final.

i do not think it has anything with the firmware being incompatible as it was running fine for a while in a passive state, nothing has been changed , the hashing board just gone missing for god knows why.

there is 0 hardware issues now and before , i seldom get any hw errors, temps never go pass 80c. the strange thing is, with this FW i seem to get a better hash rate on the pool side.

thanks for the link, my brother has some good knowledge regarding those programming case such as PICKIT 3 , so it may be a good idea to buy broken miners for very cheap and fix them to re-sell them or use them .

I do not think flushing  bitmain own firmware voids the asic warranty by any means , i also do not think that a firmware will harm a good running board. but again DYOR and do whatever you want at your risk . good luck

pretty soon we could see a new topic in altcoins  forum with a tittle [ANN][SMRT] The Smerit Token ICO


so jokes aside !

say a newbie needs to buy 100 merits to be a full member . at 14$ it costs 1400$ , how many years till he hit ROI ?  with 1400$ i would just buy some shitcoin and hodl them till 2020 and screw bounty campaigns  

I have a dozen of L3's but give me 1 good reason why should i support a "pre-mined coin"?

so you while waiting for your withdrawal of  2 eth that has been pending since last year !!  you went ahead and sent them 500 porn coin and then while waiting for both eth and xvg to show up you went ahead and send them 0.09 btc ? dude man WTF !

anyway you will probably never see any of those coins ever again " i do hope i am wrong" and i am sorry for your loss.

and thanks for sharing anyhow.

never really like CHANGELLY services, used it once on my coinomi wallet and i ended up receiving slightly less LTC when converted a small amount of BTC compared to what it showed i was suppose to get. it was too small that i didn't bother about it and since i didn't take any screen-shots to prove anything against them, and due to it being a very tiny bit of LTC so i just ignored it BUT decided to never ever use their service again.

I am not accusing Changelly for anything as it could be a glitch or something and since i didn't have any solid proof against them, but this is a 0% error ratio game, i do not want to send a dozen email to someone to solve an issue of missing crypto that may never show up. so Changelly is a no go for me anyway