[On Hold] Hosted (or not) Gridseed ASICs -> Batch 1 Ordered

[chriswen]

Okay, I don't really want to do the do it myself mode.  I was wondering what type of security you would have.  With this you're more vulnerable to attack.  For example someone could switch your miners to a different payout address and you might not notice.

[CoinHoarder]

Okay, I don't really want to do the do it myself mode.  I was wondering what type of security you would have.  With this you're more vulnerable to attack.  For example someone could switch your miners to a different payout address and you might not notice.

I understand your worries, but I honestly don't think it will be too big of a deal. I will make sure to change the default Login info on all Raspberry Pis that run the farm. The DIYers will only have access to their own Pi that only has their units on it. If they were to do something and somehow hijack the farms hash power, then I feel like I or someone else will be noticing that very quick. The options I'm choosing for pools have very good monitoring options, so I think everyone will like to check it every now and then. If they hijacked the equipment and changed passwords or something, I can simply unplug the power and reformat the sd cards and regain control of the farm pretty easy. So far there is only 1 DIYer.. so we will know who did what if something does happen. I don't imagine there being much interest in that type of hosting honestly.

I am a bit worried about it for other reasons though. Like.. perhaps someone accidentally choosing dual mining and starting a fire or something. I will make sure to drill it into peoples heads not to do dual mode mining.  There are a lot of things that come with it. Also I would probably be more worried about physical theft than intrusions by DIYers, but I am upgrading from a Motion Sensor camera to a 24x7 monitored security system which is included in the hosting fee. Whomever breaks in to steal our hashes... I hope they can run fast.

The price is pretty much finalized and I have updated the OP with it. I was able to get the costs down to $195 per unit including all PSUs/adapters/cables/hubs/pis/etc... You may see better prices around but most of the really cheap ones don't have accessories and you have to take the costs of those into account. Also, since our batches will be smaller I wasn't able to order from Gridseed directly. I designed a custom power solution that I am pretty sure will run 88 Gridseeds off of one 1000w ATX PSU!!! I sourced all cables as cheap as I could find them. I have already ordered all cables, components, adapters, pis, hubs, etc. for up to 500 units. Some components were ordered for all 1000 units, so we are pretty much ready to get going!

Ordering will open up tomorrow afternoon, so please get in any last minute terms/conditions suggestions in now.

[wolfey2014]

Fees & Hosting Terms:
- The hosting fee is all inclusive of power costs, internet bill, ordering, setup, troubleshooting, and hosting for all units.
- The fee will be dependent on the number of units hosted and will be as follows:
      100-200 units hosted: $11/month       200-300 units hosted: $10/month
      300-400 units hosted: $9/month        400-500 units hosted: $8/month
      500-600 units hosted: $7/month        600-700 units hosted: $6/month
      700-800 units hosted: $5/month        800-900+ units hosted: $4/month
- First Month = Free Hosting Hopefully we can reach half capacity+ in about a month and no one will ever have to pay >$9 for the hosting fee.  Smiley
- Bitcoinaverage.com will be used for calculating usd/Bitcoin ratio for hosting fees
- All units can only be ran on Scrypt mode only due to power/accounting issues.
- You may request delivery of your unit(s) at any time. You must pay for shipping and the hosting fees through the end of the month.
- We are located in the USA and shipping will be $10* domestic and $20* international per unit.
* Shipping costs are subject to change, for the better or for the worse. If shipping multiple units it will likely be cheaper.

***********************

Great idea! Good stuff!
So am I to understand that if I rent or rent to own 100 to 200 units, I have to pay out a hosting fee of anywhere from $1100 to $2200 per month?:

What happens after they are paid for? I can either have them sent to me for my own personal hands on or just leave them there and use them to make 'us' money? You your hosting fees and me my profits.

What are the odds of my miners paying all of that by themselves from day one?

At what point do I become 'owner' of the hardware? i.e. Psu's, controllers, miners etc? What exactly am I buying - if I go that way? Miners and support equipment or just the miners?

So I just send you my btc# and you set up the number of units I order, start them mining and making profits and if at the end of the first FREE 30 days they don't pay the rent / hosting fees, I have to pay if out of pocket?

Will the program e structured in a way that this will always be profitable and only become unprofitable if the market take a very marked dive? I mean in that case, it would hardly be worth continuing with the program, eh?

My farm should be making me a profit and hopefully paying some of my other bills too

Thanks for your ideas and offer to do this for people. I think it is very needed and wanted!
This could cause a boom in the mining side of the game which is what we need to help this industry grow and continue to be around from now on!

Wolfey2014

[wolfey2014]

Okay, I don't really want to do the do it myself mode.  I was wondering what type of security you would have.  With this you're more vulnerable to attack.  For example someone could switch your miners to a different payout address and you might not notice.

I understand your worries, but I honestly don't think it will be too big of a deal. I will make sure to change the default Login info on all Raspberry Pis that run the farm. The DIYers will only have access to their own Pi that only has their units on it. If they were to do something and somehow hijack the farms hash power, then I feel like I or someone else will be noticing that very quick. The options I'm choosing for pools have very good monitoring options, so I think everyone will like to check it every now and then. If they hijacked the equipment and changed passwords or something, I can simply unplug the power and reformat the sd cards and regain control of the farm pretty easy. So far there is only 1 DIYer.. so we will know who did what if something does happen. I don't imagine there being much interest in that type of hosting honestly.

I am a bit worried about it for other reasons though. Like.. perhaps someone accidentally choosing dual mining and starting a fire or something. I will make sure to drill it into peoples heads not to do dual mode mining.  There are a lot of things that come with it. Also I would probably be more worried about physical theft than intrusions by DIYers, but I am upgrading from a Motion Sensor camera to a 24x7 monitored security system which is included in the hosting fee. Whomever breaks in to steal our hashes... I hope they can run fast.

The price is pretty much finalized and I have updated the OP with it. I was able to get the costs down to $195 per unit including all PSUs/adapters/cables/hubs/pis/etc... You may see better prices around but most of the really cheap ones don't have accessories and you have to take the costs of those into account. Also, since our batches will be smaller I wasn't able to order from Gridseed directly. I designed a custom power solution that I am pretty sure will run 88 Gridseeds off of one 1000w ATX PSU!!! I sourced all cables as cheap as I could find them. I have already ordered all cables, components, adapters, pis, hubs, etc. for up to 500 units. Some components were ordered for all 1000 units, so we are pretty much ready to get going!

Ordering will open up tomorrow afternoon, so please get in any last minute terms/conditions suggestions in now.

The best way to prevent any potential fires by overloading wiring or psu's is, just don't have that potential to begin with by either current limiting via fusing / circuit breakers at x amps or wire the miners up to be able to handle the power increase if SHA is activated. You'd use 14 gauge wire to each unit, well more than enough current carrying capabiilty for 12V with a limit of 30Amps per 10 units. They'd never exceed that rating, even while mining SHA. The only other problem is having the front end capacity to handle the increased power usage of the psu's.

One other option, LOCK out the ability to mine in SHA no matter how the end user tries to make it work!
I would think this is possible via some software tweaks? Make sure the contract is written to reflect this too.

My .025btc worth
Wolfey2014

[CoinHoarder]

Great idea! Good stuff!
So am I to understand that if I rent or rent to own 100 to 200 units, I have to pay out a hosting fee of anywhere from $1100 to $2200 per month?:

The hosting fee will only be that high for the first couple months if I had to guess. One of those two months is free anyways. We have had about 100 units reserved in a week. If this pace keeps up we will reach full capacity in a few months and hosting fees will be dramatically lower.

What happens after they are paid for? I can either have them sent to me for my own personal hands on or just leave them there and use them to make 'us' money? You your hosting fees and me my profits.


Yes it is up to you what you would like to do with it. I can mine with it for you, sell it for you and give you the proceeds, or ship it to you if you prefer.

What are the odds of my miners paying all of that by themselves from day one?

Quite unlikely, but due to variance it is possible I guess. But again the first months hosting is free, so you would need to start worrying about the hosting fee until the 2nd month. I think the fee will be lower by then.

At what point do I become 'owner' of the hardware? i.e. Psu's, controllers, miners etc? What exactly am I buying - if I go that way? Miners and support equipment or just the miners?

You own the grid seed units themselves. Unless you buy at least 88 units you do not own all the accessories, they are shared by the group. I will provide what I can when sending/selling your unit. It depends on how many you buy as to how I can split the accessories up.

So I just send you my btc# and you set up the number of units I order, start them mining and making profits and if at the end of the first FREE 30 days they don't pay the rent / hosting fees, I have to pay if out of pocket?

No. The first month is free no matter what. You will only start paying the hosting fee at the end of the second month. I project to have around 600 units hosted by then, so you can guesstimate the 2nd months hosting fee like that.

Will the program e structured in a way that this will always be profitable and only become unprofitable if the market take a very marked dive? I mean in that case, it would hardly be worth continuing with the program, eh?

No. I have no control over the profitability of the units. They could very well be unprofitable next week for all I know. I am not liable for anything not under my control like price crashes, difficulty increases, etc. if at anytime the devices don't make the hosting fees I will give everyone the option to sell their units, pay the hosting fee out of pocket, or ship back your units.

On the opposite end of the spectrum, The price could skyrocket leaving us profitable for quite some time or difficulty could not rise as fast as you'd expect. No one can tell the future!!

My farm should be making me a profit and hopefully paying some of my other bills too

Thanks for your ideas and offer to do this for people. I think it is very needed and wanted!
This could cause a boom in the mining side of the game which is what we need to help this industry grow and continue to be around from now on!

Wolfey2014

Cool

Thanks for your interest, let me know if you have anymore questions.

[CoinHoarder]

The best way to prevent any potential fires by overloading wiring or psu's is, just don't have that potential to begin with by either current limiting via fusing / circuit breakers at x amps or wire the miners up to be able to handle the power increase if SHA is activated. You'd use 14 gauge wire to each unit, well more than enough current carrying capabiilty for 12V with a limit of 30Amps per 10 units. They'd never exceed that rating, even while mining SHA. The only other problem is having the front end capacity to handle the increased power usage of the psu's.

One other option, LOCK out the ability to mine in SHA no matter how the end user tries to make it work!
I would think this is possible via some software tweaks? Make sure the contract is written to reflect this too.

My .025btc worth
Wolfey2014

I am looking into adding 12v fuses inline with the DIY units to prevent any problems or accidents. I agree it will be better safe than sorry.

[wolfey2014]

The best way to prevent any potential fires by overloading wiring or psu's is, just don't have that potential to begin with by either current limiting via fusing / circuit breakers at x amps or wire the miners up to be able to handle the power increase if SHA is activated. You'd use 14 gauge wire to each unit, well more than enough current carrying capabiilty for 12V with a limit of 30Amps per 10 units. They'd never exceed that rating, even while mining SHA. The only other problem is having the front end capacity to handle the increased power usage of the psu's.

One other option, LOCK out the ability to mine in SHA no matter how the end user tries to make it work!
I would think this is possible via some software tweaks? Make sure the contract is written to reflect this too.

My .025btc worth
Wolfey2014

I am looking into adding 12v fuses inline with the DIY units to prevent any problems or accidents. I agree it will be better safe than sorry.

You mean say, 1 to 2 amp fuse per 10 units running in Scrypt. Spec's say 5000mA max. So this would be a good current limiting range to use to prevent any possible serious problems. The 5 chip units will ever pull anywhere near 5 amps while running Scrypt mode. As I recall, in Scrypt, they pull around 480mA max.
If they trigger a SHA session, the fuse will simply blow and that will be that until it's replaced. Perhaps a charge for having to reset them for trying to mine SHA would be appropriate as well.
Wolfey2014

[wolfey2014]

Great idea! Good stuff!
So am I to understand that if I rent or rent to own 100 to 200 units, I have to pay out a hosting fee of anywhere from $1100 to $2200 per month?:

The hosting fee will only be that high for the first couple months if I had to guess. One of those two months is free anyways. We have had about 100 units reserved in a week. If this pace keeps up we will reach full capacity in a few months and hosting fees will be dramatically lower.

What happens after they are paid for? I can either have them sent to me for my own personal hands on or just leave them there and use them to make 'us' money? You your hosting fees and me my profits.


Yes it is up to you what you would like to do with it. I can mine with it for you, sell it for you and give you the proceeds, or ship it to you if you prefer.

What are the odds of my miners paying all of that by themselves from day one?

Quite unlikely, but due to variance it is possible I guess. But again the first months hosting is free, so you would need to start worrying about the hosting fee until the 2nd month. I think the fee will be lower by then.

At what point do I become 'owner' of the hardware? i.e. Psu's, controllers, miners etc? What exactly am I buying - if I go that way? Miners and support equipment or just the miners?

You own the grid seed units themselves. Unless you buy at least 88 units you do not own all the accessories, they are shared by the group. I will provide what I can when sending/selling your unit. It depends on how many you buy as to how I can split the accessories up.

So I just send you my btc# and you set up the number of units I order, start them mining and making profits and if at the end of the first FREE 30 days they don't pay the rent / hosting fees, I have to pay if out of pocket?

No. The first month is free no matter what. You will only start paying the hosting fee at the end of the second month. I project to have around 600 units hosted by then, so you can guesstimate the 2nd months hosting fee like that.

Will the program e structured in a way that this will always be profitable and only become unprofitable if the market take a very marked dive? I mean in that case, it would hardly be worth continuing with the program, eh?

No. I have no control over the profitability of the units. They could very well be unprofitable next week for all I know. I am not liable for anything not under my control like price crashes, difficulty increases, etc. if at anytime the devices don't make the hosting fees I will give everyone the option to sell their units, pay the hosting fee out of pocket, or ship back your units.

On the opposite end of the spectrum, The price could skyrocket leaving us profitable for quite some time or difficulty could not rise as fast as you'd expect. No one can tell the future!!

My farm should be making me a profit and hopefully paying some of my other bills too

Thanks for your ideas and offer to do this for people. I think it is very needed and wanted!
This could cause a boom in the mining side of the game which is what we need to help this industry grow and continue to be around from now on!

Wolfey2014

Cool

Thanks for your interest, let me know if you have anymore questions.

Sssssssssssssso cool! An instant line of credit from the word go!
So lets say I order 200 units, you give me the first 30 days FREE while my miners make me several thousand dollars over that period. On month 2, there comes due the first months rent which will be $2200 bucks. Piece of cake to pay out of my 200 miner's profits. And I'll be receiving the difference in btc on the same day....right?

How long will it take to pay off my 200 miners? Does it depend on mining profits made and how much of that revenue is devoted to paying off the miners over time? Is this right?
You simply deduct your fees and send me the balance every month?

After the miners are paid off, what does the hosting fee become then? Is it lower? Or does the difference become more profit for you?

Thanks!
Wolfey2014

Let me know if you need any technical advice / how to info' etc. I have quite an extensive resume of years experience in several technical / mechanical / practical hands on / engineering fields. Electronics, electrical etc. etc. etc. All pro! No Micky mouse here!
Heck, I might even volunteer to help you out in person.
Wolfey2014

[CoinHoarder]

The best way to prevent any potential fires by overloading wiring or psu's is, just don't have that potential to begin with by either current limiting via fusing / circuit breakers at x amps or wire the miners up to be able to handle the power increase if SHA is activated. You'd use 14 gauge wire to each unit, well more than enough current carrying capabiilty for 12V with a limit of 30Amps per 10 units. They'd never exceed that rating, even while mining SHA. The only other problem is having the front end capacity to handle the increased power usage of the psu's.

One other option, LOCK out the ability to mine in SHA no matter how the end user tries to make it work!
I would think this is possible via some software tweaks? Make sure the contract is written to reflect this too.

My .025btc worth
Wolfey2014

I am looking into adding 12v fuses inline with the DIY units to prevent any problems or accidents. I agree it will be better safe than sorry.

You mean say, 1 to 2 amp fuse per 10 units running in Scrypt. Spec's say 5000mA max. So this would be a good current limiting range to use to prevent any possible serious problems. The 5 chip units will ever pull anywhere near 5 amps while running Scrypt mode. As I recall, in Scrypt, they pull around 480mA max.
If they trigger a SHA session, the fuse will simply blow and that will be that until it's replaced. Perhaps a charge for having to reset them for trying to mine SHA would be appropriate as well.
Wolfey2014

That sounds about right. That is the last thing on my to do list and we are set to go.

Ssssssssssso cool! An instant line of credit from the word go!
So lets say I order 200 units, you give me the first 30 days FREE while my miners make me several thousand dollars over that period. On month 2, there comes due the first months rent which will be $2200 bucks. Piece of cake to pay out of my 200 miner's profits. And I'll be receiving the difference in btc on the same day....right?
You will earn two entire months of mining before paying the first hosting fee, because the hosting fee won't be taken out until month 2's payment which comes at the end of month 2. So yes I think you'd easily make hosting fee and profit first few months. Especially if the hosting space reaches capacity quickly. Anything after that is anyone's guess on what difficulty and value will do over the next few month.

How long will it take to pay off my 200 miners? Does it depend on mining profits made and how much of that revenue is devoted to paying off the miners over time? Is this right?
You simply deduct your fees and send me the balance every month?
I don't guarantee that you will make any profit, you may lose your money. This is a risky investment and please only invest what you are comfortable losing. I suggest holding BTC or LTC to diversify a little bit. No one can tell the future though. I think if you hold on to all crypto mined you'll be a happy man in a year or two regardless how this mining venture turns out. Again, no one can tell the future though. All I can promise to to provide a nice hosting environment.

After the miners are paid off, what does the hosting fee become then? Is it lower? Or does the difference become more profit for you?
The hosting fee will always be determined by how many units are being hosted. If we fill up the warehouse quickly then I will be looking to expand elsewhere to reduce hosting costs even more. My hope is that by the time profitability lowers that I can lower the hosting fees even more to help with profits in a few months+

Thanks!
Wolfey2014

Let me know if you need any technical advice / how to info' etc. I have quite an extensive resume of years experience in several technical / mechanical / practical hands on / engineering fields. Electronics, electrical etc. etc. etc. All pro! No Micky mouse here!
Heck, I might even volunteer to help you out in person.
Wolfey2014

Ok will do. I might ask some advice when wiring up this 88 Gridseed PSU contraption. I'm a little nervous I might of messed up or something, but I'm pretty sure I got everything right. It pretty much took me all day today to figure something out... I went through 3 revisions and finally settled on something I think will work perfect.. 3rd times a charm right?

[UNOE]

I love the pic of the all the 30A sockets how many do you have and how many volts ?

[CoinHoarder]

I love the pic of the all the 30A sockets how many do you have and how many volts ?

8 30A 240 circuits.

Need to upgrade the HVAC situation before I can use them all though.

[Jos-T]

I'm pretty interested in letting you host 10 of these.
If I'm correct this will give me around 3.0-3.3MH/s hash rate in grid seed scrypt miners?
If I were to order in the coming 1-2 days and send you the BTC payment directly, what is the ETA for the miners to be running?
I would prefer the 'do-it-yourself'-solution.

Thanks for any answer!

[wolfey2014]

I love the pic of the all the 30A sockets how many do you have and how many volts ?

8 30A 240 circuits.

Need to upgrade the HVAC situation before I can use them all though.

Are those circuits powering UPS's then out to all the 120V psu's?

You have a total of 16 120V 30A circuits to use.
Why not feed all the psu branches that way?

How many total 30A circuits do you currently have available?

Wolfey2014

[CoinHoarder]

I'm pretty interested in letting you host 10 of these.
If I'm correct this will give me around 3.0-3.3MH/s hash rate in grid seed scrypt miners?
If I were to order in the coming 1-2 days and send you the BTC payment directly, what is the ETA for the miners to be running?
I would prefer the 'do-it-yourself'-solution.

Thanks for any answer!

Hey Jos-T,

I just ordered accessories last night to run about 500-1000 (some components I bought for 500 units, some were cheaper and I went ahead and got 1000). I tried to order as much as I could from North America so that we will likely receive mostly everything we need sometime next week. I am planning on making an order next weekend for the miners.

I would like to go ahead and get an order in the next couple days, however some of the accessories might not have arrived by the time we receive the Gridseeds, so I'd rather wait to be sure that we have everything we need to get started. I am buying them from a reputable company in the USA to negate the risk of getting scammed, also shipping time will be short and is expected to only take 3 days. My guess is the first batch will be up and hashing in about a week and a half. After all the accessories get in, previous batches can be ended as soon as there are enough units ordered.

Thanks

[Jos-T]

Hey Jos-T,

I just ordered accessories last night to run about 500-1000 (some components I bought for 500 units, some were cheaper and I went ahead and got 1000). I tried to order as much as I could from North America so that we will likely receive mostly everything we need sometime next week. I am planning on making an order next weekend for the miners.

I would like to go ahead and get an order in the next couple days, however some of the accessories might not have arrived by the time we receive the Gridseeds, so I'd rather wait to be sure that we have everything we need to get started. I am buying them from a reputable company in the USA to negate the risk of getting scammed, also shipping time will be short and is expected to only take 3 days. My guess is the first batch will be up and hashing in about a week and a half. After all the accessories get in, previous batches can be ended as soon as there are enough units ordered.

Thanks

Expected would be somewhere in the first half of April then? 

Is it also possible to do the DIY solution with less than 50 units (I'm interested in 10-30, haven't decided yet). This because it will need it's on Raspberry Pi to control it, while it could actually be hooked up to 50 according to your OP.

[CoinHoarder]

Are those circuits powering UPS's then out to all the 120V psu's?

You have a total of 16 120V 30A circuits to use.
Why not feed all the psu branches that way?

How many total 30A circuits do you currently have available?

Wolfey2014

I plug 30A PDUs directly into the 30A circuits, and branch the PSUs off the PSUs. Everything runs at 240v.. there is no step down to 120v.

I have about 8 30A circuits available, but cooling is the main issue holding me back from filling all of those up. Even though I have a really nice commercial A/C, it can only handle so many watts. I am due for an upgrade and it is on my to do list. If the A/C is upgraded we could possibly expand to several thousand units.. but I am not promising I will be able to do this. An A/C upgrade is probably going to cost something like $5k to $10k.  

[CoinHoarder]

Hey Jos-T,

I just ordered accessories last night to run about 500-1000 (some components I bought for 500 units, some were cheaper and I went ahead and got 1000). I tried to order as much as I could from North America so that we will likely receive mostly everything we need sometime next week. I am planning on making an order next weekend for the miners.

I would like to go ahead and get an order in the next couple days, however some of the accessories might not have arrived by the time we receive the Gridseeds, so I'd rather wait to be sure that we have everything we need to get started. I am buying them from a reputable company in the USA to negate the risk of getting scammed, also shipping time will be short and is expected to only take 3 days. My guess is the first batch will be up and hashing in about a week and a half. After all the accessories get in, previous batches can be ended as soon as there are enough units ordered.

Thanks

Expected would be somewhere in the first half of April then?  

Is it also possible to do the DIY solution with less than 50 units (I'm interested in 10-30, haven't decided yet). This because it will need it's on Raspberry Pi to control it, while it could actually be hooked up to 50 according to your OP.

No it won't take nearly that long. I expect to have the first miners hashing in about 10 days, and all of the first batch hashing by the end of that week if everything goes as planned. Yes you may do the DIY mining with less than 50 units. Just please add $70 for your own raspberry pi please.

On a side note, I also wanted to mention I will be making a list of the number of units you need to order in order to receive certain accessories when ending the hosting. Like.. every 10 units will likely come with USB hub, standoffs, etc.. ~every 50 will come with a raspberry pi, and so on and so forth. This is going to me the last edit to the OP before starting to collect funds later today.

I'm also generating a vanity wallet for the group... it's been hashing away at it all night and still hasn't found it although it's on 65% likelihood now. Our firstbits will be 1GroupB

Edit: Vanity gen reached 100% probability to find the address, but I got tired of waiting on it and used an address that starts with 1HosT instead.

[wolfey2014]

Are those circuits powering UPS's then out to all the 120V psu's?

You have a total of 16 120V 30A circuits to use.
Why not feed all the psu branches that way?

How many total 30A circuits do you currently have available?

Wolfey2014

I plug 30A PDUs directly into the 30A circuits, and branch the PSUs off the PSUs. Everything runs at 240v.. there is no step down to 120v.

I have about 8 30A circuits available, but cooling is the main issue holding me back from filling all of those up. Even though I have a really nice commercial A/C, it can only handle so many watts. I am due for an upgrade and it is on my to do list. If the A/C is upgraded we could possibly expand to several thousand units.. but I am not promising I will be able to do this. An A/C upgrade is probably going to cost something like $5k to $10k.  

Is using outdoor air to cool them a possibility? Also, if you are running a SCRYPT only farm, the wattage from each unit is miniscule but of course they add up to a lot of heat when you're running hundreds of them at a time. All you need is a fresh air inlet and place for the heat to escape out to.
Perhaps this arrangement will offset the A/C unit compensation thereof.

All those small fans on the pods are not necessary but I understand you don't want to be desoldering and removing fans from hundreds of units ;! That's not practical.

Wolfey2014

[AmDD]

Looks like this thing is about ready to take off, very cool! Im excited to see pictures of all the units hashing away!

PM coming your way...

[chriswen]

Are those circuits powering UPS's then out to all the 120V psu's?

You have a total of 16 120V 30A circuits to use.
Why not feed all the psu branches that way?

How many total 30A circuits do you currently have available?

Wolfey2014

I plug 30A PDUs directly into the 30A circuits, and branch the PSUs off the PSUs. Everything runs at 240v.. there is no step down to 120v.

I have about 8 30A circuits available, but cooling is the main issue holding me back from filling all of those up. Even though I have a really nice commercial A/C, it can only handle so many watts. I am due for an upgrade and it is on my to do list. If the A/C is upgraded we could possibly expand to several thousand units.. but I am not promising I will be able to do this. An A/C upgrade is probably going to cost something like $5k to $10k.  

Is using outdoor air to cool them a possibility? Also, if you are running a SCRYPT only farm, the wattage from each unit is miniscule but of course they add up to a lot of heat when you're running hundreds of them at a time. All you need is a fresh air inlet and place for the heat to escape out to.
Perhaps this arrangement will offset the A/C unit compensation thereof.

All those small fans on the pods are not necessary but I understand you don't want to be desoldering and removing fans from hundreds of units ;! That's not practical.

Wolfey2014

Well that won't really work in the summer which is coming soon.