IBM 88614RX Maintenance Manual - Page 115

Note: See Chapter 7, "Parts listing, Types 8861, 8862," on page 139 to determine which components are replaceable by the customer and which components must be replaced by an IBM field service technician. Error code/symptom FRU/action 405-xxx-00n (No good link! Check loopback plug) 1. Verify that the loopback plug is a gigabit loopback plug (see "Ethernet controller troubleshooting" on page 27). 2. Check for any loose connections between the loopback plug and the ethernet port. 415-xxx-000 (Failed Modem test) v Modem System-error log entries The system-error log is similar to an event log and can contain messages of three major types: Information Information messages do not require action and record significant system-level events. Example: 'System Complex Powered Up' Warning Warning messages indicate possible problems but do not require immediate action. Example: 'System over recommended ambient temperature' Error Error messages indicate system errors that may require attention. Example: 'Fan 2 not detected' System-error log messages can originate from several sources. v POST/BIOS v SMI handler v Service processor Each entry contains date and time information, which is useful in determining the nature of the occurrence. Chapter 6. Symptom-to-FRU index 105