Troubleshooting

 

Symptom Charts/Startup - 4

 

 

 

Symptom Charts

 

 

 

 

 

 

 

Startup

RAM failure occurs

1

Reseat PSRAM expansion card and check connection.

(eight-tone error

2

Replace PSRAM expansion card.

chord sequence

3

Replace daughterboard.

sounds after startup

4

Replace motherboard.

chord)

 

 

 

Hardware failure

1

Disconnect hard drive data cable and restart computer. If

occurs (four-tone

2

startup sequence is normal, reconnect cable and retest.

error chord sequence

Replace hard drive.

sounds after startup

3

Disconnect floppy drive cable and restart computer. If

chord)

4

startup sequence is normal, reconnect cable and retest.

 

 

 

Replace floppy drive.

 

 

 

5

Replace motherboard.

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Image 24
Apple 180, 165, 160 manual Symptom Charts