Memory - IBM PS/2 50 Hardware Maintenance Service

11.0 Memory

Note: Power-off the system before removing or replacing parts.
00011000 indicates a system board parity check error.
Replace the memory modules. If that does not solve the problem,
replace the system board.
00011100 indicates a memory expansion adapter parity check error.
Remove the memory expansion adapters from the expansion slots one at a
time until you no longer get a 00011100 error.
adapters have been removed and you still have a 00011100 error,
replace the system board.)
Remove the memory expansion kits from the adapter that was removed
last. Install the kits one at a time until the failure returns.
Replace the kit that caused the error to return; if that does not
solve the problem, replace the adapter.
201 memory errors display as AAAAAA BBBB 201.
identify the possible failing FRUs.
+------------------------------------------------------------------------+
¦ AAAAAA
+------------------------------------+-----------------------------------¦
¦
¦ 000000
¦ to
¦ 0FFFFF
¦
+------------------------------------+-----------------------------------¦
¦
¦ 100000
¦ and
¦ above
¦
+------------------------------------------------------------------------+
IBM PS/2 Model 50 HMS
Memory
(If all of the
Use the following figure to
¦ Possible FRUs
¦
¦ 1. System Board Memory
¦ 2. System Board
¦
¦
¦
¦ 1. Memory on an adapter
¦ 2. Memory adapter
¦
¦
11.0 - 1
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦