IBM 8480 Hardware Maintenance Manual - Page 96
Beeps, Description, Beep/symptom, FRU/action, Microprocessor., Battery, Recover, BIOS., System,
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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 system is functioning properly. Note: See "System" on page 112 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 1-2-1 v System board. (Programmable Interval Timer failed.) 1-2-2 (DMA page register test failed.) v System board. 1-2-3 (DMA page register write/read failed.) v System board. 1-2-4 (RAM refresh verification failed.) 1. DIMM. 2. System board 1-3-1 (First 64K RAM test failed.) v DIMM. v Memory adapter 1-3-2 (First 64K RAM parity test failed.) v System board. v System board 2-1-1 (Secondary DMA register failed.) v System board. 2-1-2 (Primary DMA register failed.) v System board. 2-1-3 (Primary interrupt mask register failed.) v System board. 2-1-4 (Secondary interrupt mask register failed) v System board. 86 IBM xSeries 205 Type 8480: Hardware Maintenance Manual and Troubleshooting Guide