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Here is my mining rig packed in 4 boxes. I have used MSI 6770 graphics (around 200mhs). Every box have 20 graphics cards, and produce about 4 ghs per box. I have low cost electricity, so I have bought this graphics.

http://ultraphoto.org/images/f21xdmc2i1s3d3u95rdq.jpg (http://ultraphoto.org/)

I originally posted on other forum, so here is the link about this project  ;)

http://www.bitcoinbalkan.com/forum/hardver/3252-mining-box


Bitcoinbalkan is on serbian language, so I will translate it on English in next post..

Amazing rigs! How big is one of the boxes?

dude....

I thought 1 box = 1 rig (tray), ... and that you might have typo'd in saying 20 per box.  


Then I saw this photo that gives perspective:

 http://ultraphoto.org/images/exnuiq3rgpj3ckhxbstc.jpg

wow!

 http://ultraphoto.org/images/pddbwlsd68xc6ufhwxn1.jpg

agree!

 http://www.bitcoinbalkan.com/media/kunena/attachments/117/mother-god-meme.jpg

Only this:

 http://www.bitcoinbalkan.com/media/kunena/attachments/117/mother-god-meme.jpg

here is solid translation of complete post. I want it to place this topic in HARDWARE section, and because I am newbie here it is in this section. Sorry about my bad English  ;D

My boxes :)

http://ultraphoto.org/images/f21xdmc2i1s3d3u95rdq.jpg (http://ultraphoto.org/)

Since I am limited with space (office) that I rented (13 m2), I had to pack all the equipment in the tunnels, by which I ensure stable operation of all equipment. Since I was hiding in the price (60e) is included and electricity use, I decided to MSI 6770 graf.

How do I make it better circulars air (ventilation), I designed a structure to which I have set the motherboard and 4 graphics cards. With the construction of the two power supplies (mainly used one power supply, but again let there be a option for second PSU). Here are some pictures of construction:

http://ultraphoto.org/images/glcolx3p57a2bvu5txh1.jpg (http://ultraphoto.org/)

http://ultraphoto.org/images/x6daa9ibgy2alol9bljn.jpg (http://ultraphoto.org/)

http://ultraphoto.org/images/7uff7jjzb3mre6mma4kk.jpg (http://ultraphoto.org/)

Here are the pictures of constructions posted in the tunnel

http://ultraphoto.org/images/2vhq348q4cputpmffn5.jpg (http://ultraphoto.org/)

At the entrance of the tunnel I put 4 fans that will insufflate cold air from the office and also at the exit of the tunnel I put 4 more fans that will erupt through the drain pipe out warm air from the tunnel. I used a brand SUNON fans at 220v (used for server cabinets and endure temperatures from -10 to + 60C).

http://ultraphoto.org/images/3jur8uff7g2d8j33gw33.jpg (http://ultraphoto.org/)

Since the office has a total of two windows that can open a window to a place I have built a wooden panel (MDF), which I drilled holes for the exhaust of hot air. Since I have a total of four tunnels, I drilled 16 holes on 2 plates. 17th hole is the exhaust hot air from mobile air conditioners.

http://ultraphoto.org/images/pddbwlsd68xc6ufhwxn1.jpg (http://ultraphoto.org/)

Air is set to 19c, but never really percentages that temperature: lol:

http://ultraphoto.org/images/pz7s3k6tlsdd2m7jv9sj.jpg (http://ultraphoto.org/)

There is also an IP camera in order to have an insight into developments in the room itself :lol:

http://ultraphoto.org/images/84hz0qvnb4vda17t41m.jpg (http://ultraphoto.org/)

The room temperature is between 25 and 30c, depending on external influences. The temperature in the tunnel is 33 to 40 c. I carried out a temperature monitoring device with the lowest cost, how to have insight into what happens in a closed box.

http://ultraphoto.org/images/gitkmc7xbnfkepk8841q.jpg (http://ultraphoto.org/)

Power supply for all the equipment I brought over a mini cubicle, where in addition to fuses, timers and set the switches, that when a power failure, or return the current system, have fallen one by one machine, to avoid popping the fuse. In the cupboard I put a switch, that this network cables reminiscent of the Bird's Nest: lol: but also done an excellent job  B)

http://ultraphoto.org/images/2jhsrx5l4y5jd42zjx8b.jpg (http://ultraphoto.org/)

http://ultraphoto.org/images/gusrx6hgr3yew5v4dtgg.jpg (http://ultraphoto.org/)

At the door of the closet have placed 3 amp, so I had the exact extent to which access may be charged once the three phases which are linked

http://ultraphoto.org/images/mf1yy6957nnvrs24z7.jpg (http://ultraphoto.org/)

All cables (power and network) are packed in the channels on the side of the tunnel, and brought the ignition switch to the tunnel ventilation system for each individual :)

http://ultraphoto.org/images/exnuiq3rgpj3ckhxbstc.jpg (http://ultraphoto.org/)

On one side of the tunnel were left with the handle hinges to the side of the tunnel could be opened. Here's how it looks when everything is finally closed.

http://ultraphoto.org/images/fn7g9vg6ro4b67l219w.jpg (http://ultraphoto.org/)

Since the small office area, and the fans at the entrance of a large quantity of air creep, I had to improvise a little extra air flow in the office: lol:
Hopefully this comes to ceilings, and the space above the office I have a steady flow of air beneath the concrete slabs facility

http://ultraphoto.org/images/mhycvxf6w7a5va17kbez.jpg (http://ultraphoto.org/)


Each structure consists of the following components:

Motherboard: Gigabyte H61M-D2-B3 (1x 16xPCIe + 3x 1xPCIe)
Processor: Intel Celeron G460/G530
Memory: Mushkin DDR3 2GB
Flash: Kingston/Transcend 4GB
Adapters: PCI-e extenders [4 pcs]
Graphics: Ati Radeon MSI HD6770 1GB GDDR5 128bit [4 pcs]
PSU: ThermalTake 675W Thougpower XT

In each tunnel was set at 5 structure (20 graphics cards). It is now in operation about 16 GHS. Temperature graphics from 50c to 70c.
All graphics are in the set 920/300 mhz and let down a voltage of 1.05v to be dropped tempterature graphics cards for at that level.
All machines are under BAMT operating system, where almost all work perfectly :)

By the way, I've whitelisted you so feel free to repost this awesome rig in the Hardware subforums too.