MAP 0420: Four Digits on Hexadecimal Display
001
Is the following message displayed? NO DRAM SIMM FOUND ON CP CARD
Yes No
002
– Unplug and re-plug the SIMMs.
– Ensure that the SIMM connectors are not damaged.
– If you have only one SIMM, try it in another SIMM socket.
Is the problem still present?
Yes No
003
– Problem determination completed. Go to Chapter 5, “CE Leaving Procedure” on page 5-1.
004
– You may have DRAM SIMM permanent failure.
– Replace the DRAM SIMM. See Chapter 4, “FRU Exchange” on page 4-1.
Is the problem still present after DRAM SIMM replacement?
Yes No
005
– Problem determination completed. Go to Chapter 5, “CE Leaving Procedure” on page 5-1.
006
– You may have a CPSW problem on the SIMM connectors. With the PE agreement, replace the
CPSW. See Chapter 4, “FRU Exchange” on page 4-1.
007
(Step 007 continues)
Symptom Explanation
Return Code
Message Displayed
BRSD
BRAT
BRDT
BRXB
BRBX
BRXW
BRWX
BSTX
PTYX
NO DRAM SIMM FOUND ON THE CP CARD
DRAM ADD BUS TEST ERROR BIT>YY
DRAM DATA BUS TEST ERROR BIT>ZZ
DATA ERROR FOUND DURING BYTE FORWARD TEST OF SIMM1 ARRAY
DATA ERROR FOUND DURING BYTE BACKWARD TEST OF SIMMX ARRAY
DATA ERROR FOUND DURING WORD FORWARD TEST OF SIMMX ARRAY
DATA ERROR FOUND DURING BACKWARD TEST OF SIMMX ARRAY
BURST TEST ERROR OF SIMMX
PARITY ERROR DURING SIMMX => SINGLE ACCESS OR BURST ACCESS
Chapter 2.
MAPS
2-49
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