IBM System/370 145 Reference Summary page 32

MEMORY TROUBLESHOOTING PROCEDURE
NOTE S I T test 1s
in
MBAO
test after EC 128820
This 1s the 3145 troubleshootmg procedure
for machine checks when memory errors cannot
be excluded
S. I. T. tests only 32k Control
Storage. tf more than 32 k CS
S.I. T .Jl'MJSt be used at count
9
and all failing cards at BSM
A2 and A4 must be replaced.
replace this
Card
Problem
not in
Memory
Perfonn "Check Routine for
intermittent memory errors"
only if you realy suspect that
your error is caused by o
memory failure.Routine is
time consuming,
Run Basic Tests
to
fix Problem
(BGXX)
S.I. T .tests only 32k Control
.----~----. ~:~;!~ 's!~,::es•.~:~ .3~:.
be used at count
9
and all
failing cards at BSM A2 and
'---...,.-----" A4 must be replaced.