Topic: Garage / Residential Data Center Mining Cave Planning - Garage Grotto Part 1 :D - page 4. (Read 6955 times)

As for 240 vs 220 I am not sure, is that european vs american standard?

Either way they are more or less the same, a PSU will be rated like "100v - 240v" and can be plugged into anything in that range.
Although I'll say again, DISCLAIMER, I am no electrician, please verify with a professional.

As for power, you'll want to pick up some 240v PDUs. They are very reasonably priced when bought used.

Ehternet cables can be tied along legs of the rack, and all plugged in to an ethernet switch such as this: https://www.amazon.com/NETGEAR-ProSAFE-Ethernet-Rackmount-JFS524-200NAS/dp/B00DCUKCVW/ref=sr_1_2?s=pc&ie=UTF8&qid=1494430119&sr=1-2&keywords=ethernet+switch&refinements=p_n_feature_keywords_two_browse-bin%3A7306164011

Quote one

10 gfci outlets 220v
100 amp sub panel
All wiring etc
Unsure on cfm exhaust fan and ductwork running out of back of garage his idea coincided with Phillips idea
Coax line

$3000

Quote two

Whole house surge protector with 75k warranty ($400)
30 220v outlets
Coax line
Same exhaust fan idea
Intake fan?

Quote still being figured

I garage mine  I open a back door put in a box fan. in the summer not the winter

I leave the interior door open  almost every day of the year.


In the summer with ac running  3 kwatts  is my max

In the winter when it is 30 f  6 kwatts  is my max.


mind you I can feed  48 amps at 240   which is 11.5 kwatts    but house gets really freaking hot and wife gets very angry.

At the moment

 I have:

 8  1080 ti's
 1  1080
 2  1070
 1  1060

5 rx 480's

8500h of zec pull 3kwatts.

I will need to drop to

1.5 kwatts for the summer.

Your panel appears to have plenty of room in it. Those blank gray spaces without switches can handle additional circuits, so you would not need to add another entire panel. The electricians will tell you exactly what they can put in, but I see room for at least 100amps if not more. I think you could fit 4 240v 50A circuits if you move one smaller circuit to the opposite side of the box. Then they can install however many outlets you need. You could do something like 4 50A ciruits, each with its own outlet, and plug a 50A PDU into each outlet. Or twice the outlets/PDUs with PDUs rated at 30A. But again, talk it out with the electricians, I am not qualified for such work so don't follow my advice without asking a real professional!

I also use EVGA PSUs which you can just plug into a 240v PDU. Some PSUs have 120/240v switches on the back (maybe only older models?). But your PSU should say on it somewhere something like "100v - 240v 50hz - 60hz". If it simply says "100v - 120v" you are out of luck. With that many rigs I would highly recommend getting some server PSUs to supply the bulk of the power anyways. Finksy sells entire packages that will make your life way easier. If he is out, pm me for additional sources.

Phil's diagram for airflow would definitely be more efficient than what I suggested. Here is a diagram of my suggestion: http://imgur.com/a/AQW9x

Again, its not ideal in terms of airflow, but it may be more feasible than putting a hole in the back of the garage, and sucking air from the house. Not to mention it will be LOUD with the door to the inside of the house open. Also note that you have to have enough louvers to match the exaust fan, too few and it will be extra loud and wear on the fan motor.

I do not know how much electricity your nvidia rigs need, but assuming you have everything running off 240v circuits and the full 200amps, then you can pull up to 240*200*0.8 = 38,400watts... so divide that by the peak power consumption of one of your rigs measured with a proper wall meter. While that could easily be 30+ rigs, you may run out of space/cooling capacity before electric.

1000 watts @ 220v = ~5 amps so assuming I can fine tune rigs down a bit, and a few smaller rigs not drawing quite as much power, along with fans, I could shoot for 20 rigs?

Also sidenote for everyone participating in this thread I think I'm going to make a little plaque and hang it in the mining center to dedicate individually to each member who's helped in this thread xD


I have several electricians coming over the next week, the first being tomorrow morning actually so I can have his opinion as well as far as what he would charge to do this work. I've done a lot of work including building a freaking large tiny home lol but I did everything except for the electric & plumbing there

I won't comment on the air flow thing because I haven't looked at that too much. I wouldn't buy rigs from anyone since they charge such a premium and they aren't very hard to setup. I use EVGA PSU so I don't know about Rosewill but EVGA will take any voltage from 100V-240V. This would mean that you would be just fine as long as your PSU is similar to the ones I use. It will usually have the allowable voltage on the outside of the PSU or in the literature that comes with it. I also doubt that you can get 25 rigs in your garage based on the availability on your panel if you use the standard 120V. 

If my main panel is 200 amp is there any chance my system could potentially have the capacity for a 300 amp panel and they simply put a 200 amp in or do they always put the max amp box per your electric setup

pictures of said panel here house built 2010
http://imgur.com/a/kUQqI

How would I effectively move the air? I could understand cutting a portion out to install an intake fan and blowing the air across the rigs if they were stationed next to the basement door
review pics below
http://imgur.com/a/kUQqI
I'm worried even that space left there next to the door may not be big enough? I could figure out a way to replace the door with a large fan . . I have two entry doors and could simply enter exit through the true large garage door or the other entrance door. This might actually be one of the better routes as there is already that large hole there simply filled with a door? What are everyones thoughts?

My goal is to make an efficient and cost effective setup to handle as many rigs as I can. Once I have acquired funds/ setup max rigs (currently only have ~5 rigs worth / most are parts en route etc) I'll have 2 GPU rigs running by the end of the week and the goal is 10 GPU rigs by the end of july / 5 by the end of the month)

Also for example one of my mining rigs is the mining cave cheetah https://miningcave.com/product/mc-cheetah-sk1/ it's running on standard 120v socket currently, with these atx psu (this uses rosewill 1200w (photon/gold)) I simply plug into 220v correct? How do I ensure units are setup to handle increased power as to never damage a unit

Certainly not rolling in money and I'm thinking the metal wire shelves will be perfect for my setup goals and above all ..  budget!

I'm really willing to go to any extent to make this happen, but budget is certainly a concern! http://imgur.com/a/kUQqI please review the updated pics for a little bit of a better idea, I will also upload a picture of what is in the area behind the extended portion of the garage, it is essentially a small maybe 6x6 utility room with my water heater / ducts

I appreciate your concern for the car xD as I am a car guy and will have to park my racecar in there however my focus is on the mining rigs as the car seems to spend a lot more money than it makes lol

I am willing to put the mining gear anywhere along the basement door side / the "cubby" area / basically anywhere but the footprint of a vehicle in front of the garage door + the wall on that side is pure concrete

Does that number seem accurate? ~25 rigs max based on my power capabilities? so we should be building cooling based on that? Also what is "too hot" for a miner to run are cards running at 80c+ "too hot" what exactly is an ideal temp, okay temp, bad temp, and critical temp?

http://imgur.com/a/kUQqI Please review the album as I have uploaded 4 more pictures that show the layout a bit better and also show the panel

Apologize for all of the junk everywhere, still moving myself in and have some of my familys stuff stored here as well for the next week

What could I potentially cut down  to maximize my potential energy, looks like I could squeeze ~25 rigs onto 100 amps?

Granted I don't have 25 rigs yet but that is most certainly the goal!

this is my idea for him he needs to cut 1 vent in back corner of his garage.
he needs a strong exhaust fan so air is pulled from cooler home.  
this setup keeps gear away from car and lets a car be parked.
only one cut in garage for vent.
and cooler air flows into garage from basement
if ac bill goes too high  he can close basement door  and open garage door 2 inches use this

from garage door to vent  inside door shut

http://www.perforated-pipe.com/perforatedpipe/perforated-square-tube.html





from inside to vent

OP, if you take a picture of the inside of your panel, I can check how much room it has to add circuits. If it is full, you may need to add a second box, but it really is not that expensive.

I just did a quick read through the posts and could have missed something. I would use exhaust fans as recommended but I would separate the mining room from the house. Do not draw the air from inside the house, pull the air from outside. Arrange the rigs so that the air pulls directly across the rigs. You want a exhaust fan big enough to exchange the air in the room several times per minute. Even if the temps are 100f outside, when you are pulling that air across your 65c to 70c card temps they will stay cool. 70c is 158f so the outside air will cool if you have proper air flow. 3000cfm is a good starting point. I am moving my rigs out to a 12x26 storage unit that I had set in the back yard. I am going to go with 7,500 to 10,000 cfm because i want the air to be exchanged many times to keep the heat minimized. There is no reason to put in a 200 amp panel right now unless you have the money and know you will add several more rigs in the future. Its gonna cost so be prepared.

I have 9 rigs on my main 200 amp panel. I dedicated 4 double pole 240v breakers just for mining. You dont want the breaker to be loaded more than 80 percent. If you run your rigs on 240v you can double the amperage of a 120v circuit and run more efficiently. At 240v you could run approx 20+ rigs on a 200 amp panel. The wire racks work perfectly. It gives very good air flow for the cards. Unless you are rolling in the money there is no reason to buy those expensive sever racks. 75 bucks will allow you to set up 6 to 8 rigs on a nice wire rack. Thats my 2 cents.


I was actually thinking of this. Haven't decided on fan size yet.

http://www.homedepot.com/p/iLIVING-5000-CFM-Power-30-in-Single-Speed-Shutter-Exhaust-Fan-ILG8SF30S/207174738

I would definitely have a dedicated panel installed just for your mining. You will more than likely want to expand and you want to have the circuits and the amperage to do it.

I can only run half at most I'd imagine with my house box being 200?

start with 200 amp or you will regret it in the long run

Yeah if you're lucky you can find the server racks used for cheap, but I still opt for wire shelves. Home Depot and Wal-Mart sell similar brands for cheap with a 600lb rating per shelf. You could fit ten rigs on this: http://www.homedepot.com/p/HDX-48-in-W-x-72-in-H-x-18-in-D-Decorative-Wire-Chrome-Finish-Commercial-Shelving-Unit-6T60184872C/100655787

For the electric, I would opt to add a 100amp (or two 50amp) circuits into your box at 240v. Or maybe swap some 120v circuits for 240v if the box does not have the room. It will be pretty cheap to have done since your box is in the garage and the electrician won't have to run wires a long distance/through walls. The 240v circuit will help with efficiency/your high-ish electric rate. I'd talk to @Finksy about some platinum server PSUs if you plan to have 5+rigs. Again, it'll help cut the hurt of the $0.14 electric.

As for cooling, I'd personally put the rigs right in front of the door going to the outside. Exhaust fan on the door, you might be able to put a louver in place of the window on the door. Then I'd put louvers along the bottom of the garage door for intakes. Just make sure you have enough to match the power of your exhaust fan. If you do get up to ten rigs, I'd get a fan ~3,000CFM, but that's a serious shot in the dark. idk nvidia rigs, and idk virginia.

its for the whole house, so I'm thinking I could cut it in half to dedicate to mining?

Thanks for the input please review this http://imgur.com/Nij8gSv

I live in a relatively hot and relatively humid area (virginia) and I pay 14c kwh so I need the setup to be efficient as my electric is not cheap

https://www.newegg.com/Product/Product.aspx?Item=N82E16816228172&ignorebbr=1&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC-_-pla-_-Server+Racks%2FCabinets-_-N82E16816228172&gclid=Cj0KEQjwrsDIBRDX3JCunOrr_YYBEiQAifH1Fl9raOwfOqCvS1kjQYIZ308iBLQgzYc9LdZVj1TX0i0aArSs8P8HAQ&gclsrc=aw.ds I would never profit a dime with racks this expensive! lol I'll definitely opt for the metal wire shelves xD

http://imgur.com/Nij8gSv

So here is my base layout of the garage, if that is the case I would have to run miners right next to that door in order for that airflow concept to be efficient? What do you think based off that floor plan?