First thing to know if it's related to some voltage is to measure the main voltages.

More info, see here..
http://jb8a8f8.com/support/index.php?threads/p5-fault-finder-pinout.13/
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Doing nothing leads to nothing.

------------- Please note, for technical support -------------
Will be given here, or on the jb8a8f8 forum and I prefer it in English.
Johnny B.

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