Re: Old 720 IBMi Server

[DrFranken <midrange@xxxxxxxxxxxx>]

Those power supplies have 'two halves' as it were.  One part is always 
on as long as the plugs are in, that's the part that runs the service 
processor and the service processor is what communicates with the 
control panel.  If that part is dead the control panel is dark and you 
can't start the thing up.

Why is this important?  Because if the 720 isn't the littlest one, the 
power supplies on the left (CPU) and right (Expansion) are identical. 
Since that part of the supply isn't used on the expansion side, you can 
swap them left and right sides and get the server back running if that's 
the problem.   A large number of screws must be removed and replaced but 
at least they are all the same!! (and don't miss the ones that come in 
from the back of the server!)

- Larry "DrFranken" Bolhuis

On 4/13/2012 3:44 PM, Jim Donoghue wrote:
> On the back of the unit, right side, just to the left of the power plug -
> looking through the vent holes, when it is plugged in there should be a
> green light (the light comes from a LED on the circuit board inside of the
> power supply). If you have connected all the power cables correctly, and
> this light is not on, the power supply may not be functioning.
>
> Jim
> On Apr 13, 2012 2:22 PM, "Ricky Thompson"<rickyt29@xxxxxxxxx>  wrote:
>
> > I have a old 720 AS/400 (i think 9406 model) that has not been ran in a
> > couple of years but was working fine when put in storage and was kept in
> > good condition.  I plugged it up the other day and the power supply fan
> > comes up but the front panel never lights up.  I'm getting power to each
> > tower unit as I checked the cables coming from the power supply.  What
> > would the next thing you would look for?  Is there an internal battery that
> > would cause the front panel not to come on?  Any guidance on what to look
> > for and where to look would be appreciated.
> >
> > Thanks
> > --
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