Topic: [CLOSED] batch #32 0.65 btc per Blade, 49-port HUBS .30 or less - page 11. (Read 55882 times)

ONE place to buy idiot proof dc plugs is good old mcmelectronics.com  unlike the crap pus's early in this thread they have a great dc power cord.  it has a blue led and a red led.  if wired wrong for hubs the led is red .  red is dead you will burn the hub up.   if the led is blue it is wired correctly.  give me a few minutes. i will post some nice 7 port hubs


http://www.mcmelectronics.com/product/82-12675   link for the wire same code afc909 for discount.

now that sticks are going going gone  I wonder if AM will  sell a better stick. It would be nice if they cut a deal with bitfury and made the 2.5gh sticks just as fast as they made these sticks..

To add to Aurel's post (most of this is the same as on his blog):

Supplies:

1) Multimeter ($30 at Radio Shack, a lot cheaper from ebay)
2) Wiring to connect the PSU to your hubs (can also just snip off the plug from one of the cheap 1A/2A power supplies and strip the 2 wires): http://www.mcmelectronics.com/product/27-5990
3) Extra Power strip
4) Philips Screwdriver
5) More common sense than me (I initially bought a 12v PSU and blew up 2 hubs...Yeah - a loud pop and smoke haha)

After getting a power strip and literally just snipping off the plug, you should have 3 wires, strip the insulation off each of them so you have inch or so of exposed/bare (copper?) wiring,  

You need enough stripped so you can fit all 3 wires on their respective screws but not too much so when you close the little plastic safety latch there is still enough exposed wire to still end up hitting the wire and shocking yourself.

Green wire connects to  GROUND (the weird symbol)
Black (may also be red) wire connects to L(ine)
White wire connects to N(eutral)

Keep it unplugged.

Get the plugs you ordered -
White wire is + POSITIVE
Black wire is - NEGATIVE

This is how I lined mine up:


+     +     +     -    -    -   So first hub i connected got the 1st positive with the 1st negative, second hub got the 2nd positive with the 2nd negative, etc...
|                   |
---------------

I had more than 3 hubs so i doubled up with +/- terminals.  I think I have 5 connected total.  

Make sure voltage switch is set to 110 if you're in the US. Plug in the PSU, it should power on.  Make sure you have a fan on it if it didn't come with one built in. Take the multimeter, touch the black probe to the first negative screw/terminal then touch the red probe to the first positive screw/terminal.   Adjust voltage as needed to make sure it reads 5 and 5.5v.  When you're done, plug in your hubs! And close the plastic safety hatch thing.

This is how I got setup running (40A) and it's been going strong for over a month.  If I have anything wrong here please let me know so I can change it.  Here is a close-up of my PSU:

Just updated prices on blades.

Also, there are no more USBs available from the manufacturer.  Whatever remains on hand at resellers is it folks.  Once they're gone, they won't be restocked or made again.

I still have plenty on hand with good color selection and offcourse 50 units include the 49 port USB hub.

I put up a blog a while back as I was getting to many messages asking about using PSU to run hubs off of. http://aurel57.blog.com/2013/09/29/asic-miners-usb-powered-hubs/ I use 20A 5v PSU's to power 4 hubs running 28 USB miners. (A person should be able to power the 49 port hub with a 40A PSU without over stressing the PSU.)  My first 20A PSU has been running a couple of months without problems. Since I have added 2 more PSU's and have 10 hubs running 70 miners now running. The wiring is pretty straight forward. For the 20A PSU I bought a cheap power strip that had 14 gauge wire and cut the cord off. This is wired  to the line +/- of the PSU. If using 110v wall outlet make sure your PSU switch is on the 110v and not the 220v as most have duel power. Now on my 20A they have 2 output ++/-- this is where you will power your hubs from. Since I wanted to run 30 USB miners from one 20A PSU I used 4 hubs so I could wired 2 hubs to each side of the power to balance the load. On a 40A PSU there is 3 +++/--- outputs. Without a 49port hub its hard for me to tell just how to wire one of these 40A PSU so the load would be balanced on all 3 outputs. I hope this helps some.  Here is a close up of the 20A wired to 4 hubs (I added a cheap led volt meter as to keep a eye on voltage)

I second that!

USB miners, yes... It depends how many ports you have opened and whether they have enough power per each port. Easiest setup is the 49 port hub with a PSU that can power it.

so i can buy it and PLUG into any computer and it will mien trought usb?

Can one of you show how it's hooks up?

Using this PSU as well with 56 block erupters, going strong for over a month.

have been hashing away with 70 erupters using this genssi s-200-5 and for $30 on ebay is unbeatable

yeah I knew I was in trouble . The physical weight of the units  made me realize they were labeled very optimistically .   

Most likely the output diode on the 5V rail.  Could of been the switching mosfet(s).  I have seen some PSU's come in my shop that claim very large outputs but I open them only to find parts capable of maybe half.   Under normal  conditions where max load it demanded maybe .5% of the time this is OK.  Put a constant 80-90% load on it... poof!

what blew? the PSU, the wire or the plug? Its says its to have 36amps on the 5v side so should have powered more than 30?

Thank you!  shipping out.

bitdigger2013;50 + Free hub;1.75;167E6p1FXe8BofyB3jPjZtABjotYt2x8M3

that's "roughly" 57/2 = 28.5 amps if all are powered exclusively on the 5V ATX rail...  that's pushing it... but yes, that is one good PSU, hope it lasts!

quick update...not sure what changes i made (moved a bunch of cables around...pretty much) but all 57 are now hashing and powered by the 30amp 5volt (along with a usb wifi card)  and some 12v miners. power supply is a champ!

If you are thinking of trying to power up multiple hubs, you will need a 5V rail with about 30 Amps for EACH hub.
that's just not going top happen with a "normal" off the shelf PSU.

  these are a fail

I blew up a pair of them at about 30 sticks

any idea if i can use a 24pin splitter?