Topic: Garage / Residential Data Center Mining Cave Planning - Garage Grotto Part 1 :D - page 2. (Read 6970 times)

grab some metered PDU's, nuff said

Be cautious but my kill-a-watt tools worked when i used them for 240v as well as 120v. Most of them are made the same just a different plug for different parts of the world.

I'm going to have two 30-amp breakers run to two 30-amp L6-30 outlets.  As far as tools to measure usage, I'm not sure.  But the amps a rig takes at 120v is cut in half when put on 240v.  I think I'll just use a killawatt to measure a rigs amp draw at 120v and then plug the rig into the 240v.  That's the only solution I have right now to estimate amp draw on 240v.

You'll need C13 to C14 cables.  I have the 14AWG (gauge) ones.  Business rackmount servers come with these as well as the standard cables.  My dad's business had a bunch of extra ones.  

http://www.ebay.com/sch/i.html?_odkw=c14+to+c13+14awg&_sop=15&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xc13+to+c14+14awg.TRS1&_nkw=c13+to+c14+14awg&_sacat=0


I was going through the same troubles as you trying to figure out the proper electrical setup.

This link really helped me figure out what I needed.

https://bitcointalk.org/index.php?topic=74740.10

Using ATX PSU, do I need to upgrade the standard 120v style power cable it comes with if I'm using it on a PDU

what's the ideal breaker size / rigs to run on it / best tool to determine exact power draw?

Electric has been a frustrating component of all this 

A PDU will allow you to plug multiple rigs into an outlet.  If you have an L6-30 type outlet, look at the APC AP9571.  These can be had for a great price on eBay.  I ordered 2 of them from eBay a couple weeks ago.


http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_nkw=APC+AP9571&_sop=15

Is there any real benefit to the PDU? with the setup I'm looking at making I don't see the purpose of a PDU as I can add more outlets at a lower expense than PDU, I don't have them yet but I'll need to have them installed this month, so i'm open to suggestions / best ideas from you all

What kind of 250v outlet do you have? are you connecting to a PDU or right to a wall outlet? You can definitely plug any decent quality PSU into a 250v outlet but there are different kinds of cords depending on the specific setup.

What 240v power cable can I swap onto https://www.newegg.com/Product/Product.aspx?item=N82E16817182320
(typical atx psu)

/ where can I find them -- these atx psu will auto adjust with upgraded input and run more efficiently powering my miners, correct?

Running the flat blade power cable  on 250v to atx psu rated 120-240v --- is this correct or a big mistake O_o

Great video.  Nice rigs, too. Those are clean and sharp. 

I'm intrigued by that blower/hose combo. How well does it work if you have a wider area of hot air from multiple rigs? Does the hose constrict the air movement? I like the idea of something that can be moved around if it needs to, but is more powerful and longer lasting then a box fan.

I have 9 rigs (6x 1070s ea.) going now in an apartment with a 200A panel.  Dealing with the heat was definitely a process.  I upgraded the fans you see in the video to 3x 6200CFM (they are 3-speed and we have only needed 4000 CFM for now up to 88 degrees ambient outside temp).  I have two pushing air out the big window which creates negative pressure and pulls in a ton of air from the side window.  The third one is on standby for now and interestingly the temp actually goes up if I set the 3rd one up to pull air in the side window.  Temp inside usually stays within 7 degrees of ambient outside temp with 2x fans exhausting heat out the big window at 4000CFM per fan.

https://www.youtube.com/watch?v=zCcBGX0E8ns

Not sure about roof..me I'm in a basement

lostgonzo.imgur.com

Not sure a 16" fan would fit

the one I use again (shutter fan) in basement window is (above pics)

it is a a Canarm xsf 12 80 watt 120 volt 0.8 amp

https://www.menards.com/main/building-materials/roofing-soffits-gutters/power-vents/canarm-12-3-speed-xfs-series-exhaust-shutter-fan/p-1444426155930.htm




I also forgot to mention I have hanging on bracket equiv pusher fans on the other side of the basement to push air thru to the shutter fan.

This one is 120 watts and 120 volts 18" hanging bracket fan

https://www.menards.com/main/heating-cooling/fans/commercial-fans/xtreme-garage-18-weather-rated-wall-or-ceiling-mount-fan/p-1444450409162-c-12728.htm?tid=-2180365848878263561

raise my hand up and there is a wind How I get the heat out

temp wise..well ....no choice really ...have to move AIR temp does not matter much ..I suppose 8 degree F maybe

Had equiv of 5 Titans running in the basement last summer. IT mostly stayed below 80F ...... a few days it hit 85F ..I think 1 day I shut the miners off due to heat

but me...I need the air flow .....again I suppose 16" is better if you don't care about noise

also I do not have thermostat on shutter fan because the louver's when fan off doesn't shut sometimes...i could have maybe put a weight ot something tricky
to get them to do so...but wtf it is summer ....and again at less the 10 bucks (1 fan) 24/7 I just let them run that's per fan per month...i had with 1 shutter fan
2 pusher fans....a rare day when all 3 were full out.but when I had to do so ...was nice they were all available

the pusher fans I used (bracket in front of other side of basement window hanging) pics are on my above link if you need such

anyway it all works well...only 2 titans down there now...soon all will be at data hall and the 75w 300mh baikal cube will hardly need the airflow

Again all this stuff is at Menard's hardware store....

www.menards.com


anyway good luck .it is all about moving air

Do you have a picture / what does your mining gear consist of?

I'm running one of these in my garage.  It's loud, and pulls ~ 500W by itself, according to the label on it, but it moves the air through the exhaust hose very quickly.  I also have one of these pushing air over the equipment, with everything enclosed.  This allows the ~30 cu ft of air that the miners occupy to be completely refreshed every few seconds.  It's way cheaper to move a lot of air than it is to cool the air, so AC is a total waste of money and energy for this kind of thing.

What does that keep your basement temp at?
would the 16" fan be better suited for my setup?

Do you think that it's more effective to run them side mount or to run attic roof mount style fans?

If I remember right at 10c kWh it was less then $10 bucks a month.  Did not matter
in my case I had to move some air. Again, this was no thermostat, just 24/7 one month.

How much does it cost to run these large exhaust fans?  What's their typical draw?

I'm a hobby miner with a hot room, so I'm curious what added cost these things have, compared to running a box fan or playing with higher AC use in my house.

I use this

https://www.menards.com/main/building-materials/roofing-soffits-gutters/power-vents/canarm-12-3-speed-xfs-series-exhaust-shutter-fan/p-1444426155930.htm

with this hood

https://www.menards.com/main/building-materials/roofing-soffits-gutters/power-vents/canarm-xf-series-knock-down-hood-for-xfs12-r-16-r/p-1444426163562.htm

my setup is at (or what is left at home..rest is at data hall)

lostgonzo.imgur.com

I want to run at least 2 fans in case one fails, so I can limp along with only 1.

Thoughts on this fan?

http://www.homedepot.com/p/Master-Flow-1500-CFM-Power-Roof-Mount-Attic-Fan-in-Shingle-Match-Weatherwood-ERV6SMWW/205924959

Too big?
http://www.homedepot.com/p/QuietCool-Professional-3013-CFM-Power-Gable-Mount-Attic-Fan-AFG-PRO-3-0/206047381?MERCH=REC-_-PIPHorizontal1_rr-_-202913826-_-206047381-_-N


thoughts on fans on the wall vs the roof?


If I go with roof mount, so I simply run intake vents along the entire bottom of the structure?