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Parallella Community Supercomputing for Everyone 2015-04-07T22:48:54+00:00 https://parallella.org/forums/feed.php?f=50&t=1523 2015-04-07T22:48:54+00:00 2015-04-07T22:48:54+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=13296#p13296 <![CDATA[Re: Inverted power plug polarity]]>
Recently I gave another try to the board and found some things.

The U36 element (NC7SZ125) was damaged, so the + and - poles of J12 were in short circuit, and this short circuit is probably dragging down the 3.3 voltage in 3P3V (is around 2.4V when powered through USB).

Can some one explain what is the function of U36? Can I power on the board without it, through USB?


Thanks!

Statistics: Posted by danielcbit — Tue Apr 07, 2015 10:48 pm

]]> 2014-07-22T08:09:12+00:00 2014-07-22T08:09:12+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9484#p9484 <![CDATA[Re: Inverted power plug polarity]]>
Regards,

Andrew

Statistics: Posted by 9600 — Tue Jul 22, 2014 8:09 am

]]> 2014-07-21T22:10:10+00:00 2014-07-21T22:10:10+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9471#p9471 <![CDATA[Re: Inverted power plug polarity]]>
So based on this I can assume this board is dead, right?

Statistics: Posted by danielcbit — Mon Jul 21, 2014 10:10 pm

]]> 2014-07-20T18:30:52+00:00 2014-07-20T18:30:52+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9446#p9446 <![CDATA[Re: Inverted power plug polarity]]> Statistics: Posted by 9600 — Sun Jul 20, 2014 6:30 pm

]]> 2014-07-20T16:12:23+00:00 2014-07-20T16:12:23+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9444#p9444 <![CDATA[Re: Inverted power plug polarity]]> Statistics: Posted by danielcbit — Sun Jul 20, 2014 4:12 pm

]]> 2014-07-20T10:28:15+00:00 2014-07-20T10:28:15+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9438#p9438 <![CDATA[Re: Inverted power plug polarity]]> Statistics: Posted by 9600 — Sun Jul 20, 2014 10:28 am

]]> 2014-07-19T17:59:48+00:00 2014-07-19T17:59:48+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9426#p9426 <![CDATA[Re: Inverted power plug polarity]]> Statistics: Posted by danielcbit — Sat Jul 19, 2014 5:59 pm

]]> 2014-07-19T09:22:18+00:00 2014-07-19T09:22:18+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9416#p9416 <![CDATA[Re: Inverted power plug polarity]]> Statistics: Posted by 9600 — Sat Jul 19, 2014 9:22 am

]]> 2014-07-19T04:17:15+00:00 2014-07-19T04:17:15+00:00 https://parallella.org/forums/viewtopic.php?t=1523&p=9415#p9415 <![CDATA[Inverted power plug polarity]]> Statistics: Posted by danielcbit — Sat Jul 19, 2014 4:17 am

]]>