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Peter Dettmann
 
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Default Contact resistance in ATX power connectors causing grief

On Sat, 13 May 2006 09:06:04 -0700, Jeff Liebermann
wrote:

Peter Dettmann hath wroth:

Also the discussion has not
mentioned the necessity for good mechanical pressure in the
connectors. I had extensive problems with otherwise good connectors
in another set up where the spring fingers were not having or
retaining their intended springiness.
Also the contact material may not be as good or pure as hoped for.
Peter Dettmann


Someone most certainly did mention mechanical pressure, which methinks
is a big part of the problem. See:
http://groups.google.com/group/comp....cd035216258215
starting with "Gas tight over what area...". I recommended he
sacrifice one power supply connector end and measure the retention and
extraction force on the mating connectors without the shell. My
guess(tm) is that they're fairly loose.


Great Jeff, I missed that, but agree with your analysis.

Peter Dettmann