IBM IntelliStation M Pro 6225 Hardware Maintenance Manual And Troubleshooting Manual page 94

Beep/symptom
1-2-3
(DMA page register write/read
failed.)
1-3-1
(First 64K RAM test failed.)
2-1-1
(Secondary DMA register failed.)
2-1-2
(Primary DMA register failed.)
2-1-3
(Primary interrupt mask register
failed.)
2-1-4
(Secondary interrupt mask register
failed)
2-2-2
(Keyboard controller failed.)
2-2-3
(CMOS power failure and checksum
checks failed)
2-4-1
(Video failed; screen believed
operable.)
3-1-1
(Timer tick interrupt failed.)
3-1-2
(Interval timer channel 2 failed.)
3-1-3
(RAM test failed above address
OFFFFH.)
3-1-4
(Time-Of-Day clock failed.)
3-2-1
(Serial port failed.)
3-2-2
(Parallel port failed.)
3-3-1
(Memory size mismatch occurred.)
3-3-2
(Critical SMBUS error occurred, I2C
error.)
3-3-3
(No operational memory in system.)
84
IntelliStation M Pro Types 6225 and 6228: Hardware Maintenance Manual and Troubleshooting Guide
FRU/action
System board
1. DIMM
2. System board
System board
System board
System board
System board
1. Keyboard
2. System board
1. Battery
2. System board
Video card
System board
System board
1. DIMM
2. System board
1. Battery
2. System board
System board
System board
1. DIMM
2. System board
3. Battery
1. Disconnect the computer power cord from outlet, wait 30 seconds,
and retry.
2. System board.
3. Microprocessor.
4. DIMMs.
1. Install or reseat the memory modules, and then do a 3-boot reset.
2. DIMMs.
3. System board.