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Topic: can I use Ebay USB hub w/ 40a power supply? - page 2. (Read 4140 times)

legendary
Activity: 1232
Merit: 1000
September 29, 2013, 04:58:07 PM
#5
I had two different 40 amp PSU that I tried and both failed. I do have two 20 amp PSU that are running 56 miners. I also started a blog with the links to the parts I bought. http://aurel57.blog.com/    
legendary
Activity: 1470
Merit: 1001
Use Coinbase Account almosanywhere with Shift card
full member
Activity: 167
Merit: 100
September 29, 2013, 03:56:52 PM
#3
Yeah, I already looked at the connections.  They look alright, but I'll keep an eye on them and monitor tems as well to see how it works out.  Thanks.

I may wire the power supply to my Rosewill 10-port hubs as well, since it only allows 8 miners w/ stock supply.  This should clean up the wires.

Lastly, anyone know where to get barrel plug leads? not ones where I have to solder all the wires, but complete leads?  I would prefer not butchering the stock adapters, but I'll do that if I have to.
sr. member
Activity: 452
Merit: 250
September 29, 2013, 03:34:14 PM
#2
I was wondering, since the main issue seems to be insufficient power...

I have a 10-port ebay USB hub that came with a 5v 2a adapter.  However, after a few minutes of mining on my Erupters (3 installed), one will stop working, and overall, there's a high HW error rate.  two will work just fine though.  So I'm thinking that the main issue is power. 

Would it work if I wired these to a 5v 40a regulated power supply?


Most likely yes, but be careful with the cheaper hubs, they tend to be undersized for significant power draw. I am currently using a cheap hub with five BF1 usb miners but I had to solder the power wires directly to the pcb because the barrel jack was tiny and would've melted at  3+ amps of current.

I run 10 port hubs wired to an ATX psu's 5v rail that is also powering some BFL gear on the 12v rail. Keeps things tidy
full member
Activity: 167
Merit: 100
September 29, 2013, 03:29:59 PM
#1
I was wondering, since the main issue seems to be insufficient power...

I have a 10-port ebay USB hub that came with a 5v 2a adapter.  However, after a few minutes of mining on my Erupters (3 installed), one will stop working, and overall, there's a high HW error rate.  two will work just fine though.  So I'm thinking that the main issue is power. 

Would it work if I wired these to a 5v 40a regulated power supply?
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