Hi, Matt.
-=> MATT MC_CARTHY wrote to ROY J. TELLASON <=-

 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?      :-|

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

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

Thanks for pointing that out.  I had also noticed that he had reversed
the steps which I had suggested, but it didn't ring a bell with me that
that might cause a problem. (at least with some PS's).

I got curious about this, and just now tested two ATX PS's from
different mfgrs.   FWIW, both of those will start up the fan if jumper
is present when power is applied.  Results may vary with other power
supplies.  Of course, the general best way to do this simple test is the
sequence which you and I have suggested.

- - -  JimH.

... "Bother!" said Pooh, as his 'puter started acting flakey as Wheaties.
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