IBM H SERIES RS/6000, Инструкция по установке и обслуживанию

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Memory Test Hang Problem
General Memory Information
Memory cards can be installed in either slot (or both) on the system board, there is
no requirement that one be installed before the other.
It is perfectly acceptable for there to be two partially populated memory cards, the
first one does not have to be fully populated before memory on the second memory
card is usable.
Memory card memory modules, on the other hand, must be installed in matched
(size and speed) pairs. Refer to “Memory Cards and Memory Modules” on
page 7-34 for labeling of the memory card and instructions on module removal and
installation (do not, however, replace the covers as directed while troubleshooting
this problem). A single memory module pair may be installed in module slots 1 and
2 (not slots 1 and 3). A second memory module pair could be installed in module
slots 5 and 6 (slots 3 and 4 do not have to be populated first). Along these same
lines, there is no requirement that memory module slots 1 and 2 be populated before
another slot pair.
Problem resolution steps:
This section attempts to trouble shoot a problem
during the memory testing where the system hangs before an error code can be dis-
played on the operator panel.
1. Power down the system.
2. Remove and re-install any installed memory cards, power the system up. If the
system no longer stops at an E3xx code, re-seating the memory card(s) has cor-
rected the problem.
3. Attempt to isolate the problem to a specific memory card.
a. If there is only one memory card installed, tag the card as suspect bad and
skip to step 4 on page 3-61.
b. Remove one of the two memory cards, tag the card as suspect bad and
Power the system up. If the system no longer stops at an E3xx code, skip to
step 3d on page 3-61.
c. Power down the system, remove the installed memory card and install the
memory card removed in step 3b. Move the suspect bad tag from the
installed memory card to the one just removed, and power the system up. If
the system stops at an E3xx code, remove the suspect bad tag and skip to
step 7 on page 3-62, if the system does not stop at an E3xx code, skip to
step 4 on page 3-61.
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RS/6000 Enterprise Server Model H Series Installation and Service Guide