Apple powermac server g3 minitow Servicehandbuch

 

 Troubleshooting

Symptom Charts/Video - 25

 

Screen is black, no 

boot tone and drive 

does not operate, but 

fan is running and 

LED is lit

1 Reset Cuda chip. (Refer to “The Cuda Chip” in Basics chapter 

for instructions.)

2 Reset logic board. (Refer to “Resetting the Logic Board” in 

Basics chapter for instructions.)

3 Remove all SDRAM DIMMs and try replacing them one at a 

time to test. Replace any bad DIMMs.

4 Replace logic board.

5 Replace power supply.

6 Replace processor module.

Boot tone is present 

and screen lights up, 

but nothing is 

displayed on screen

1 Reset Cuda chip. (Refer to “The Cuda Chip” in Basics chapter 

for instructions.)

2 Reset logic board. (Refer to “Resetting the Logic Board” in 

Basics chapter for instructions.)

3 Replace monitor cable.

4 Test with known-good monitor. Replace monitor if necessary. 

Refer to appropriate monitor manual to troubleshoot 

defective monitor.