I have a 9406-170 that was sitting idle for over 3 years.
Upon trying to restart - it IPL'd in manual mode.
After 3 IPL's it would no longer come up far enough for Terminal access.
System Time & Date were messed up when it did IPL fully so I replaced
both the Clock & Cache Batteries.
That fixed nothing.
I'm back to 675A3200 with display codes as follows:
I purchased some spare disks just in case.
I also have the V5R1 CD's.
ANY advice appreciated as I am currently dead in the water.