Sounds like it's tripping the over current protection. That PSU has 2 rails. Both miners can't be on the same 12V rail as the rails only have 18A each. Try running/mining with only one miner first and make sure that works. Then add the other one. I see that PSU only has one PCIE connector, so as I was saying before, OCP is likely. Try using a different lead of connectors for the second miner how every you are wiring it up. You may be able to figure out which lead is on the second rail by using a meter on the 12V line on the other leads and watching for no/less voltage drop(compared to the lead the miner is on) when the miner starts mining, not sure you won't see a voltage drop though as the PSU may compensate properly.
Also, I had a Corsair unit with a single rail(which is always recommended over multi-rail PSUs)500W that would go into OCP when just turning the miner on. This PSU was about 2-3 years old though and failed shortly after(weels) when being use in it's normal machine. The failure may have been instigated by my multiple attempts to power the miner when the OCP tripped(even though I was only using about 2/3-3/4 of the rated 12V rail power).
Topic: Powering 2 BFL Little Singles (Read 458 times)
I have 2 BFL Little Singles (30 GH/s each) and the power supply went out on one (shocker), so I figured I'd get a PSU to power the 2 of them. I searched on the forums and I saw something about getting a 400w minimum PSU that was 80+ and 2 PCI-E connectors, so I found one at Fry's (link below of the one I got) When I use the paperclip trick to start the PSU, it runs both of the LSs fine, but whenever I try to start mining, they get up to full speed and go for about a minute, before the PSU just shuts off. If I don't start the miner, the PSU will stay on indefinitely and power the machines no problem. I tried adding a CD-ROM drive to the PSU, because I read somewhere if you don't have a big enough load on the PSU, it will shut off when doing the paperclip trick, but that didn't work. Any idea about whats going on? Any ideas on how to fix it? Can anyone recommend a PSU that will for-sure work that I can buy either at Fry's or online with bitcoin? Thanks for the help guys.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371004
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371004
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