IBM eserver 630 6C4, Руководство по обслуживанию

Страница: 94 / 573

General Memory Information
Be sure to unplug the power cables before removing or installing the processor cards or
memory DIMMs to avoid damage to them.
It is acceptable for the memory DIMMs to partially populate each processor card in a
multi-processor card system. For example, 4 memory DIMMs can be placed onto
processor card 1, and another 4 memory DIMMs can be placed onto processor card 2.
The system uses both sets of memory DIMMs indiscriminately.
Memory DIMMs however, must be installed in matched (size and speed) quads. Refer
to “Memory DIMMs” on page 430 for labeling of the processor card and instructions on
memory DIMM removal and installation. Do not, however, replace the covers as
directed while troubleshooting this problem. Memory DIMM quads can only be installed
in one of the following two memory DIMM slot combinations:
v
1, 3, 6 and 8
v
2, 4, 5 and 7
There is no requirement that memory DIMM slots 1, 3, 6 and 8 be populated before
memory DIMM slots 2, 4, 5 and 7.
Attention: Go to the service processor menus. In the System Information Menu,
select Memory Configuration/ Deconfiguration. Verify on the first screen that memory
repeat gard is disabled. If it is enabled, disable it for the duration of this MAP. When
exiting this MAP to go to MAP 0410 in the
RS/6000
Eserver
pSeries Diagnostic
Information for Multiple Bus Systems, return the setting to enabled if necessary.
Step 1240-1
1. Go to the service processor menus and disable memory repeat gard on if it is not
already disabled.
2. Turn off the power. Remove the power cord.
3. Remove and reinstall the processor cards.
4. Reattach the power cord. Wait for
OK
in the operator panel.
5. Turn on the power. Attempt to boot to the SMS menus. (The system may stop with
an 8-digit error code before it reaches the SMS menus.)
6. Power down the system using the white button. After the
OK
appears in the operator
panel, look at the memory configuration/deconfiguration menu.
Are any DIMMs deconfigured?
No Reseating the processor card(s) has corrected the problem.
Enable memory repeat gard if necessary.
Go to
″
MAP 0410: Repair Checkout
″
in the RS/6000
Eserver
pSeries
Diagnostic Information for Multiple Bus Systems.
Yes If there is only 1 processor card installed, tag it as
″
suspect bad
″
and go to
“Step 1240-6” on page 77. If there are 2 processor cards installed, go to “Step
1240-2” on page 75.
74 Eserver
pSeries 630 Models 6C4 and 6E4 Service Guide