IBM XSERIES 255 TYPE 8685, Руководство по техническому обслуживанию и ремонту

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Note: See “System” on page 160 to determine which components should be replaced by a field service technician.
Beep/symptom FRU/action
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
(Programmable Interval Timer failed)
v
System board
1-2-2
(DMA initialization 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. Memory card
3. System board
1-3-1
(first 64K RAM test failed)
1. DIMM
2. Memory card
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
2-2-1
(Interrupt vector loading failed)
v
System board
2-2-2
(Keyboard controller failed)
1. System board
2. Keyboard
2-2-3
(CMOS power failure and checksum
checks failed)
1. Battery
2. System board
2-2-4
(CMOS configuration information
validation failed)
1. Battery
2. System board
2-3-1
(Screen initialization failed)
v System board
2-3-2
(Screen memory failed)
v System board
2-3-3
(Screen retrace failed)
v
System board
2-3-4
(Search for video ROM failed)
v System board
2-4-1
(Video failed; screen believed
operable)
v
System board
128
xSeries 255 Type 8685: Hardware Maintenance Manual and Troubleshooting Guide