Post
Topic
Board Group buys
Re: [OPEN IN-STOCK] batch #32/31 .035 btc @50 USBs + 49-port hub. 1.1 btc /Blade
by
aurel57
on 01/11/2013, 08:47:19 UTC
Can one of you show how it's hooks up?
I second that!
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)