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Jerry and Larry,
Knowing the 250 is really just a re-badged 170, I can say this:
It is very likely the RIFA capacitors inside the power supply that are getting flakey and are about to "give up the ghost" entirely, at which point, the machine will no longer power on.
IBM, like many other companies in those days, used the RIFA capacitors in power supplies, etc., and they like to fail after a certain number of years. Apparently the composite materials they are made from are hydroscopic -- they gradually absorb water from the atmosphere, until the whole capacitor turns into a "goo" ... :-o
Good luck ...
Mark S. Waterbury
On Tuesday, April 16, 2019, 5:50:52 PM EDT, DrFranken <midrange@xxxxxxxxxxxx> wrote:
Well it's getting tired. :-(
My guess would be either a power fault, but that SHOULD post some flavor
of 1100xxxx SRC code, or the planar board is checking out.
- Larry "DrFranken" Bolhuis
www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.
On 4/16/2019 5:32 PM, Jerry Draper wrote:
We have a 9406-250 that has IPLed seven times since midnight last night.
There is nothing we can see in DSPLOG QHST or anywhere else.
What could be happening?
Jerry
midrange.com
