Hi all,
as I am new here I wont try to be the smart guy , I just only like to help the bitcoin community and give ideas for easier operation of your miners as also to save money.
As you know everything is so expensive related to it out there.
I will try to show you bellow how to make a PSU for your Antminer S1.
The cheapest server PSU that could do the job for the S1s' is the : Delta DPS-835AB, Artesyn 7001138-Y000, IBM x3650 3655 835W (12.1V 69A) , which I bought (and can still buy ) for less than 10$ each on eBay.
http://www.ebay.com/itm/321306693173?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649It is a stable 12V supplier and can handle two S1s' as they both barely reach 62A , overclocked.
Lets say we got it in our hands , here how it looks like:
Here are the label details.
We have to open the outer metal case, which can be done by unbolting 5 small screws.
Now carefully remove the metal case. Don't pull hard , as it needs no effort to be released.
Now we have to release the circuit board, as we have to solder underneath of it.
There are 3 screws holding it.
One of them is not very visible, be careful.
Here it is , take care not to lose it in the board as it may stick.
Now , lift the board carefully, but don't break it! Put a plastic piece, like an insulating tape, so as to make enough space for working with the soldering unit.
Turn the unit as in the picture and try to solder the two pins as in the picture.
Be careful not to solder and connect any other pins apart from those two! It is a little tricky, but patience can do the job.
I bought some copper bars off a shop supplying electricity materials, like circuit breakers, fuses etc.
Those bars are used for connecting the circuit breakers together, or something like that.
They are sold 1000mm long, 10mm wide and 1,5mm thick. It would be better with 2mm thickness, but could not find at that shop.
Mark them every 30~35mm and cut them (scissors for metals or a grinder maybe ?)
Now you have to use a stronger soldering unit to solder on the bars.
Do it like in the pictures , but try not to cover the whole surface because a clean part is needed for connecting it to the psu connector.
Now we need 4 wires for each bar, to supply the current.
Wires in the dimension of 2.5mm
2 can handle the load as it does not exceed the 16A. The 2.5mm2 can handle up to 20A.
Start by cutting 4 of them 500mm long.
Strip them at least 20mm.
Now twist all four together and try to hold them steady.
Solder them with plenty of wire to become glossy.
Now heat the bar again and put the soldered wires over it, it will be very easy to understand that they are well welded.
Dont rush give it a few minutes.
Now tape only the soldered part.
Now, strip also the other sides of the wires.
If you dont have any PCI -e connectors, you can cut a 24pin ATX type, which can be found at old psus' .
You can create 3 PCIe from a 24 single ATX.
Connect the top 3 with negatives, and bottom 3 with the positives.
Be careful, don't fry your S1.
Do the same for the 4 other wires, and your are almost done !
Push carefully the bars, as shown in the pictures.
Take care about the polarity!!!!
Walla!!
24 overclocked miners working for 2 weeks without issues.
I need your comments!
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