IBM 8649 Hardware Maintenance Manual - Page 36
System-board, error, Diagnostic, tables
UPC - 000435133427
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System-board error LEDs The following illustration shows the location of the error LEDs on the system board. You might need to refer to this illustration when solving problems with the server. Fan 1 error LED (D2) Fan 2 error LED (D19) Microprocessor 2 error LED (D32) DIMM 1 error LED (D27) DIMM 2 error LED (D26) DIMM 3 error LED (D29) DIMM 4 error LED (D28) SCSI controller status LED (D45) PCI fan error LED (D55) Center fan error LED (SYSFAN4) Table 3. Error LEDs Error LED Without optional Remote Supervisor Adapter DIMM error (D26, D27, D28, Memory problem (also turns D29) on system error LED on the front bezel) Microprocessor 2 error (D32) Microprocessor 2 problem (also turns on system error LED on the front bezel) Fan error (D2, D19, D55) No function Hard disk error (LEDs on hot-swap hard disk drives) Hot-swap hard disk drive failure With optional Remote Supervisor Adapter Memory problem (also turns on system error LED on the front bezel) Microprocessor 2 problem (also turns on system error LED on the front bezel) Fan failure Hot-swap hard disk drive failure Diagnostic error code tables For descriptions of the error codes that might appear when you run the diagnostic programs, see "Diagnostic error codes" on page 103 Notes: 1. Depending on your server configuration, some of the error codes might not appear when you run the diagnostic programs. 2. If diagnostic error codes appear that are not listed in the tables, make sure that your server has the latest levels of BIOS, Remote Supervisor Adapter, ServeRAID, and diagnostics microcode installed. 26 IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide