IBM 84885BU User Manual - Page 107

Chapter 6. Symptom-to-FRU index This index supports xSeries 226 servers. Notes: 1. Check the configuration before you replace a CRU or FRU. Configuration problems can cause false errors and symptoms. 2. For IBM devices that are not supported by this index, see the documentation for that device. 3. Always start with "General checkout" on page 11. The symptom-to-FRU index lists symptoms, errors, and the possible causes. The most likely cause is listed first. Use this symptom-to-FRU index to help you decide which FRUs to have available when servicing the server. The first column of the two-column tables in this index lists error codes or messages, and the last column lists one or more suggested actions or FRUs to replace. Take the action (or replace the FRU) that is suggested first in the list, and then try the server again to see whether the problem has been corrected. Note: Try reseating a suspected component or reconnecting a cable before replacing the component. The POST BIOS code displays POST error codes and messages on the screen. Beep symptoms Beep symptoms are short tones or a series of short tones separated by pauses (intervals without sound). See the examples in the following table. Beeps 1-2-3 4 Description v One beep v A pause (or break) v Two beeps v A pause (or break) v Three beeps Four continuous beeps One beep after successfully completing POST indicates the server is functioning properly. Note: See "System replaceable units" on page 131 to determine which components should be replaced by a field service technician. Beep/symptom FRU/action 1-1-2 v Microprocessor (Microprocessor register test failed.) 1-1-3 (CMOS write/read test failed.) 1. Battery 2. System board 1-1-4 (BIOS EEPROM checksum failed.) 1. Recover BIOS 2. System board © Copyright IBM Corp. 2004 97