Apple WS 7250/120 用户手册

 

 Troubleshooting

Symptom Charts/System - 7

 

System shuts down 

intermittently

1 Make sure air vents are clear. Thermal protection    

circuitry may shut down system. After 30 to 40 minutes, 

system should be OK.

2 Make sure power cord is firmly plugged in.

3 Verify fan is plugged in and working (if present). Replace if 

necessary. (Note: Some 90 MHz versions of the Power 

Macintosh 7200 logic board have a fan that plugs into the 

logic board near the processor.)

4 Replace power cord.

5 Check battery.

6 Reset Cuda chip. (Refer to The Cuda Chip in Basics for 

instructions.)

7 Reset logic board. (Refer to Resetting the Logic Board in 

Basics for instructions.)

8 Replace power supply.

9 Replace logic board. Retain customer's DIMMs.