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echo: tech
to: Roy J. Tellason
from: Matt Mc_Carthy
date: 2003-10-17 00:25:16
subject: Testing ATX power supply

16 Oct 2003, 04:06, Roy J. Tellason (1:270/615), wrote to JIM HOLSONBACK:

Hi Roy.

 RJT> So if I were to take a bit of wire,  and jumper between that 
 RJT> green wire and one of the adjacent black ground wires,  and get 
 RJT> absolutely *no* response when I flip the power switch on (power 
 RJT> cord is in and connected),  is it then safe to assume that I 
 RJT> have a problem with the power supply there?      :-|

The steps are reversed!  First plug in the power cable, then flip the
switch on, _then_ jumper the green wire.  Some use a 'momentary' jump,
others have to keep the jumper on.  

I'm pretty sure one of those two indicates a 'fault', but haven't yet
figured out which.  Then again, one way (or the other) might just be a
change to accomodate the newer MBs which support the "boot after power
failure" mode.   :-((


     Good luck...  M.

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