Troubleshooting 3-13
7402 Both EDO and STD memory SIMMs installed EDO SIMMs not supported
7403 Address did not map to bank Failed MMC or SMC
7404 Address did not map to Group Configuration Table Failed MMC or SMC
7405 Dual issue test failed Failed monarch processor
7500 No RAM found No SIMM pairs installed or they are not
seated
7501 Not enough good memory to run Operating System Verify memory configuration using
PDC ME command
7502 Not enough good memory to run Boot Console Handler Verify memory configuration using
PDC ME command. 256KB is required
7604 No bits set in test status Contact the response center
7701 Using alternate memory configuration Bad memory configuration detected
7702 Warning, abbreviated memory test Fast Boot is Enabled
7703 SIMM loading warning Contact the response center
7704 RAM bus warning Verify memory configuration using
PDC ME command
7705 Good memory required to run Operating System is greater
than memory size
Verify memory configuration using
PDC ME command
7706 Mixed DRAMs. Both EDO and standard memory are
present.
7800 PDT disabled warning Verify PDT level with PDC PDT com-
mand
7800 PDT disabled halt Verify PDT level with PDC PDT com-
mand
7801 Overwrite single bit error with multi-bit error in PDT Check PDT level
7802 Duplicate PDT entry Contact the response center
7803 EEPROM fault while updating PDT Failed system board
7804 PDT table is full Verify PDT level with PDC PDT com-
mand
7D00 HPMC memory error HPMC in the memory system
7D01 HPMC I-cache parity error I-cache parity error in the memory test
Table 3-9. Memory Troubleshooting (Continued)
Code Description Possible Cause
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