IBM H Series, Installation And Service Manual

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d. Power down the system, remove the installed memory card and install the
memory card removed in step 3b (tagged as suspect bad). Power the system
up. If the system stops at an E3xx code again, skip to step 4 on page 3-63.
e. Remove the suspect bad tag, re-install the second memory card and power
the system up. If the system no longer stops at an E3xx code, re-seating the
memory cards (again) has corrected the problem. If the system stops at an
E3xx code again, skip to step 7 on page 3-64.
4. Attempt to isolate the problem to a specific memory module pair on the memory
card tagged as suspect bad:
a. Power the system down.
b. Remove all installed memory modules from the suspect bad memory card
except one pair. Record the original positions of any memory modules
removed so that when instructed to re-install them they can be installed in
their original position.
c. Power the system up.
d. If the system no longer stops at an E3xx code, skip to step 4g.
e. Exchange the memory module pair left installed in step 4b with another pair
of memory modules and tag the removed memory module pair as suspect
bad.
f. Power the system up. If the system stops at an E3xx code, skip to step 6 on
page 3-64.
g. Power down the system.
h. If there are more memory module pairs to be re-installed on the suspect bad
memory card, install another memory module pair in their original positions
on the memory card, and continue with step 4i.
If there are no more memory module pairs to be re-installed, you either have
a suspect bad memory module pair or simply reseating the memory modules
on the memory card has corrected the problem. If you have a suspect bad
memory module pair, continue with step 5.
i. Power the system up.
j. If the system does not stop at an E3xx code, continue at step 4g.
k. If the system has stopped at an E3xx code again, replace the memory
module pair that was just re-installed and tag the removed memory module
pair as suspect bad.
l. Power the system up. If the system again stops at an E3xx code, continue
with step 6 on page 3-64. If the system does not stop at an E3xx code,
continue with step 4g.
5. Determine which of the suspect bad memory modules is defective (may be both).
For each of the two memory modules tagged as suspect bad:
Chapter 3. Error Code to FRU Index
3-63