IBM 884015U, Руководство по техническому обслуживанию и устранению неисправностей

Страница: 84 / 176

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 Description
1-2-3
v One beep
v A pause (or break)
v Two beeps
v A pause (or break)
v Three beeps
4 Four continuous beeps
One beep after successfully completing POST indicates the system is functioning
properly.
Note: See “System” on page 108 to determine which components a field service technician should replace.
Beep/symptom FRU/action
1-1-2
(Microprocessor register test failed)
1. Optional microprocessor (if installed)
2. Microprocessor
3. System board
1-1-3
(CMOS write/read test failed)
1. Battery
2. Clear CMOS (see “Recovering the BIOS code” on page 68).
3. System board
1-1-4
(BIOS EEPROM checksum failed)
1. Recover BIOS
2. System board
1-2-1
(Programmable Interval Timer failed)
System board
1-2-2
(DMA initialization failed)
System board
1-2-3
(DMA page register write/read failed)
System board
1-2-4
(RAM refresh verification failed)
1. DIMM
2. System board
1-3-1
(first 64K RAM test failed)
1. Reseat the DIMMs
2. Replace the lowest-numbered pair of DIMMs with an identical known good
pair of DIMMs; then, restart the server.Return one DIMM at a time from the
failed pair to its connector, restarting the server after each DIMM, to
identify the failed DIMM.
2-1-1
(Secondary DMA register failed)
System board
2-1-2
(Primary DMA register failed)
System board
74
xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide