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4. Group integrity failure
An error status of 00 indicates that the memory DIMM has not had any errors logged
against it by the service processor.
To change the memory configuration, select the number of the memory DIMM. The
memory DIMM state will change from configured to deconfigured or from deconfigured
to configured. Memory DIMMs are managed as a group; deconfiguring a DIMM makes
the whole group of four DIMMs unavailable.
In the example menu shown above, each line shows two DIMMs and indicates whether
they are configured.
To enable or disable Memory Repeat Gard, use menu option 77 of the Processor
Configuration/Deconfiguration Menu.
If Memory Repeat Gard is disabled, DIMMs that are in the deconfigured by system
state will be reconfigured. These reconfigured DIMMs are then tested during the boot
process, and if they pass, they remain online. If they fail the boot testing, they are
deconfigured even though Memory Repeat Gard is disabled.
The failure history of each DIMM is retained. If a DIMM with a history of failures is
brought back online by disabling Repeat Gard, it remains online if it passes testing
during the boot process. However, if Repeat Gard is enabled, the DIMM is taken offline
again because of its history of failures.
The physical location of a DIMM is determined by xx.yy , where xx is the riser card
location (11 for riser card 1, 10 for riser card 2, and 3 for DIMMs on the processor card)
followed by the DIMM location on the riser card, according to the following two
illustrations.
386
Service Guide
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