BFL Jalapeno RIP

Forum rules
Welcome to The Scottish Boinc Team boards. See forum rules in pinned post. If you can't be bothered then try not to be too naughty as I have a delete button to press and a ban hammer to swing.
User avatar
Alez
[ TSBT's Pirate ]
[ TSBT's Pirate ]
Posts: 10363
Joined: Thu Oct 04, 2012 1:22 pm
Location: roaming the planet

#1 BFL Jalapeno RIP

Post by Alez »

That's my little 7 GH/s Jalapeno dead. Power brick blew up with enough force to split the casing. Replacement brick employed but the miner is no longer recognised. Seems a common fault with the jalapenos that when the brick blows it takes out a chip on the board and no more communication.
Once again the BFL PSU's have proven to be trash. If you own a BFL miner, change the PSU for something not BFL original.
Image
The best form of help from above is a sniper on the rooftop....
User avatar
Janos (retired)
Still a Newbie
Posts: 1919
Joined: Thu Feb 23, 2012 8:58 am
Location: Aberdeenshire, Scotland

#2 Re: BFL Jalapeno RIP

Post by Janos (retired) »

wow! I've only ever seen power supplies blow up when they are seriously overloaded or suffered a major power spike.
"Happiness can be defined as: a geek with non-work related code to write, no distractions and no deadline." - Janos
User avatar
Alez
[ TSBT's Pirate ]
[ TSBT's Pirate ]
Posts: 10363
Joined: Thu Oct 04, 2012 1:22 pm
Location: roaming the planet

#3 Re: BFL Jalapeno RIP

Post by Alez »

Reading on the net they seem to fail with disturbing regularity. Also disturbingly the PSU's are made to american standards with only 2 wires and no earth, hence when they fail in europe at 240 volts they ground through the USB cable and hence cause the FT232 usb chip to get fried in the unit.

quoted from one post https://bitcointalk.org/index.php?topic=365800.0
Indeed. The problem isn't faulting, shit happens. The problem is the impact; does the device fail safe or fail destructive.

Fail safe would be if a fault shorts to a ground at the PSU, blowing a fuse (in the PSU) or a main breaker. If you have a grounded device and your wiring meets NEC (or whatever you use in your country that is not corrupt) your PSU dies and you get another one.

Fail destructive would be if a fault shorts, there is no ground, and the case goes hot (deadly), an exposed connector goes hot (painful), or the fault goes to ground through another device (destructive). In the US, BFL supplies can't fail deadly. Those same power supplies on a 240 volt hot hot ground system would fail destructive.

so again, if you have a jalapeno with a genuine PSU then change the power brick for one intended fo EU use, like the lcd tv units used for the rockminer 32 GH/s miners.
Image
The best form of help from above is a sniper on the rooftop....
Post Reply Previous topicNext topic

Return to “Bitcoin Utopia”