Hang Problems - North Star DIMENSION Service Manual

TROUBLESHOOTING
Hang Problems
Symptom Explanation
Solution
The system Is the
hangs problem a
occasionally .
central
module hang
(all
workstations
affected) or a
workstation
hang?
o Workstation Hangs - If the problem is a workstation
hang , run the same software on another workstation
with the same amount of RAM. Similar symptoms
usually indicate a software problem . If you' re using
Sidekick or something similar , delete it and see if
the problem disappears . If you are able, add RAM
and see if this resolves the problem. Some programs
halt gracelessly if they are used with too little
memory. If the problem appears to remain at one
workstation board, replace the board. If that
workstation has an expansion RAM, trade expansion
RAM boards with another workstation.
Workstation boards that tend to hang after they've
warmed up may have defective LS390 ' s (the RAM
refresh counter). If an LS390 is defective, it tends
to make the RAM forget after a while. If you
suspect this is happening ( and the problem cannot be
duplicated on another board ), replace the workstation
board.
There are more notes about workstation hangs in the
"Application Problems " section.
o Central Module Hangs - If the problem is a central
module hang, determine if are you able to relate it
to a particular action or program--"every time I run
... it crashes ." If you are able to establish this type
of connection, please call the North Star hotline and
let us know. We will attempt to simulate the
problem on our systems . ( This applies to workstation
crashes also.)
DIMENSION Service Manual 2-19