|
Title: BFL Jalapeno power supply confusion Post by: C0mpass on October 17, 2014, 12:14:41 AM Hi,
So my BFL Jalapeno power brick just died, too lazy to make my own for a atx setup so I bought this charger: http://www.staples.ca/en/iGo-Green-Travel-Laptop-Charger/product_898226_2-CA_1_20001 It seems to have variable voltage 11.5 – 16VDC but yet on the back it says 19 volt output. Currently the jalapeno is hashing away with it but the fan seems to be spinning way higher than normal, Is this an OK brick to run it with or am I going to end up frying it in the long run? Thanks for any help. Title: Re: BFL Jalapeno power supply confusion Post by: TheRealSteve on October 17, 2014, 01:06:28 AM The 11.5-16VDC seems to be when plugging it into e.g. a car's power jack (cigarette lighter), sometimes also found on airplanes (first class, maybe, though I think those are all standard outlets now as it is), and has nothing to do with output voltage.
It likely is 19V output as stated on the back (manufacturer probably knows better than the people who wrote the documentation/packaging/promo fluff) and at some retailers (e.g. maplin) who didn't just copy/paste the material, and that would explain the fan going faster than it's supposed to if that's pretty much just hooked up (semi)directly. The jalapeno's mining portion itself is behind a bunch of voltage regulators, so that should be okay. Those voltage regualtors themselves may run hotter than they're supposed to, though. They may well be able to take it, but why take the risk? Find a proper 12V brick. You can find plenty for cheap with plenty of oomph: 12V 5A, 12V 6A is fairly common as LCD monitors use those a lot. You can't use those as a travel power supply, but if you're buying something for that secondary purpose, you can do a lot better than this iffy thing. Title: Re: BFL Jalapeno power supply confusion Post by: bcp19 on October 17, 2014, 01:09:51 AM The 11.5-16VDC seems to be when plugging it into e.g. a car's power jack (cigarette lighter), sometimes also found on airplanes (first class, maybe, though I think those are all standard outlets now as it is), and has nothing to do with output voltage. 5 or 6 amps is only workable if the Jalapeno is 5-7gh. The 3 chip Jalapenos need a 10 amp supply.It likely is 19V output as stated on the back (manufacturer probably knows better than the people who wrote the documentation/packaging/promo fluff) and at some retailers (e.g. maplin) who didn't just copy/paste the material, and that would explain the fan going faster than it's supposed to if that's pretty much just hooked up (semi)directly. The jalapeno's mining portion itself is behind a bunch of voltage regulators, so that should be okay. Those voltage regualtors themselves may run hotter than they're supposed to, though. They may well be able to take it, but why take the risk? Find a proper 12V brick. You can find plenty for cheap with plenty of oomph: 12V 5A, 12V 6A is fairly common as LCD monitors use those a lot. You can't use those as a travel power supply, but if you're buying something for that secondary purpose, you can do a lot better than this iffy thing. Title: Re: BFL Jalapeno power supply confusion Post by: C0mpass on October 17, 2014, 01:52:49 AM This one is the original 5 GH/s with the upgrade to 8 GH/s
I just ordered a 12V 6A psu off amazon. So that's sufficient? Title: Re: BFL Jalapeno power supply confusion Post by: Bicknellski on October 17, 2014, 05:51:50 AM The 11.5-16VDC seems to be when plugging it into e.g. a car's power jack (cigarette lighter), sometimes also found on airplanes (first class, maybe, though I think those are all standard outlets now as it is), and has nothing to do with output voltage. 5 or 6 amps is only workable if the Jalapeno is 5-7gh. The 3 chip Jalapenos need a 10 amp supply.It likely is 19V output as stated on the back (manufacturer probably knows better than the people who wrote the documentation/packaging/promo fluff) and at some retailers (e.g. maplin) who didn't just copy/paste the material, and that would explain the fan going faster than it's supposed to if that's pretty much just hooked up (semi)directly. The jalapeno's mining portion itself is behind a bunch of voltage regulators, so that should be okay. Those voltage regualtors themselves may run hotter than they're supposed to, though. They may well be able to take it, but why take the risk? Find a proper 12V brick. You can find plenty for cheap with plenty of oomph: 12V 5A, 12V 6A is fairly common as LCD monitors use those a lot. You can't use those as a travel power supply, but if you're buying something for that secondary purpose, you can do a lot better than this iffy thing. First time seen BFL actually help a customer in these forums without resorting to name calling first. FTC has made them be more polite one other good thing to come from this TRO. More typically they just provide BS in a bag. But they charge you extra for the bag and the foam pitchforks. Whole threads full of zero customer service right here as an example: Issues with your BFL products? Post below. Seems to be a more than a few smoking units out there. https://www-techinasia.netdna-ssl.com/wp-content/uploads/2014/10/bullshit-bag-e1413192153413-720x400.jpg Quote Just one more way bfl is fucking over customers. Lots of us paid for the upgrade to 7GH. Than they gave it to just about everyone, paid for our not. The only 5 GH units apparently had bad chips. You got lucky. So enjoy using your free upgrade to help make the one I paid for less valuable. http://www.reddit.com/r/BitcoinMining/comments/1r7la0/finally_got_my_2_jalapenos_from_bfl_but_they_seem/cdkf3sf Quote butterfly labs jalapeno 7gh stopped working after a week http://www.reddit.com/r/BitcoinMining/comments/1qmbg7/butterfly_labs_jalapeno_7gh_stopped_working_after/ Same thread. Quote Mine just blew last night. I woke up to a dead computer room, and after testing individual devices, I found it was the BFL miner PSU that was shorting my circuit. So, ignore the people saying it's faulty apartment wiring: my house is brand new. That is more Bruce Peterson's speed. |
