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Troubleshooting
B-3
Question: Why do I get the message Operating system not found?
• If you get this message when starting from the hard disk, insert the boot up disk
into the external floppy disk drive unit; then check the condition of the hard
disk.
• Enter the Setup Utility and check the status of the hard disk. Check the size of
the hard disk and make sure the item Hard Disk Type of Main menu is set to
Auto.
Trouble With Display
See also the Display section in Chapter 4.
Question: Why is the screen blank?
• Press any key to see if any power management feature has turned off the screen
to save power.
• See the power indicator to check whether the computer is powered.
• If you are using a standard battery pack, make sure it has a charge remaining. If
you are using an external battery pack, make sure it is connected correctly and
has a charge remaining.
• Make sure the LCD screen is selected as the display by pressing Fn+F5.
• Check the brightness controls for your display by pressing Fn+F7.
• Check whether the back light is on by pressing Fn+F11.
• If you still have the problem after trying the above, slide and hold the power
switch for more than five seconds to turn off the system. Five seconds later, turn
the computer on.
• If you cannot power off the system using the above procedure, slide the reset
switch on the bottom of your computer and turn off the system. Wait five
seconds and turn the computer back on.
Question: Why does the external monitor display nothing?
• Confirm the monitor is turned on.
• Confirm the monitor is connected correctly.
• Make sure an external monitor is selected as the display by pressing Fn+F5.