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Troubleshooting 4-5
No Display Issues 0
If the Display does not work, perform the following, one at a time. Do not replace a
non-defective FRU:
Figure 4-2. No Display Issue
No POST or Video 0
If the POST or video does not appear, perform the following, one at a time.
1. Make sure that internal display is selected. Switching between internal and external by
pressing Fn+F5. Reference product pages for specific model procedures.
2. Make sure the computer has power by checking for one of the following:
Fans start up
Status LEDs illuminate
If no power, refer to Power On Issues.
3. Drain stored power by removing the power cable and battery. Hold the power button for 10
START
Power On?
No
Power On Issues
Replace
Ext. DDR RAM
module
No
No
Fasten Screw
Replace
M/B
Check
connection
No
LCD module
OK?
No
Replace
LCD panel/
LCD cable
Ext. DDRRAM
module well
connected?
Ext. DDRRAM
module OK?
CPU thermal
module well
screw?