IBM 3270 Maintenance Manual page 140

The failing module may be in one of the other
banks that has not yet had a module replaced.
ENTER THE NUMBER(S) OF OPTIONS TO TEST
OR PRESS ENTER TO SELECT ALL OPTIONS
?2
TESTING - XXXKB MEMORY
THIS TEST TAKES UP TO TWO MINUTES
PLEASE STAND BY
XX:XX:XX
ERROR - XXXKB MEMORY 201 S
FAILING ADDRESS - SPACE/MODULE XXXXX XX
PRESS ENTER TO CONTINUE
HAVE YOU REPLACED THE FAILING
MODULE IN EACH OF THE FOUR BANKS?
NO
Go to page 3-200-13
YES Replace the system board. Remove all
64K modules from the old system board,
and install them on the new system board.
See Section 5, "Removal/Replacement and
Adjustments." Mter installing the modules
on the- new system board, run the
diagnostic again (see 3-200-55).
October 1984 3-200-15