Sony PCG-F480 Manual

VAIO

® 

Notebook User Guide

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When the internal backup battery is low on power, it may not be able 
to start your system properly. The message “Press <F1> to resume, 
<F2> to setup” would appear at the bottom of the display. Should this 
happen:

1

Press F2. The BIOS Setup menu appears.

2

Set the date (month/day/year). Press Enter to move to the next 
item. To enter 01/31/2000, for example, type 1, press Enter, type 
31, press Enter, type 2000, then press Enter.

3

Press 

Рto select System Time, then set the time (hour: minute: 

second). Press Enter to move to the next item.

4

Press 

Π

to select Exit, then press 

Рto select Get Default Values. 

The message “Load default configuration now?” appears.

5

Check that Yes is selected, and press the Enter key. If No is 
selected, press 

Í

 to select Yes.

6

Select Exit (Save Changes), then press the Enter key. The message 
“Save Configuration changes and exit now?” appears.

7

Check that Yes is selected, then press the Enter key. The computer 
restarts.

When I turn on my computer, the message “Operating system not found” 

appears and Windows does not start
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Check the floppy disk drive to see if a non-bootable diskette is in the 
drive. 

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If a non-bootable diskette is in the drive, turn off the computer, 
remove the diskette, and then turn on the computer again. Confirm 
that Windows starts properly. If Windows still does not start, follow 
the procedure below to initialize the BIOS.

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If the floppy disk drive is empty, follow the steps below to initialize 
the BIOS:

1

Remove any peripheral devices connected to the computer.

2

Turn the computer off and then turn it on again.

3

Turn on the computer and press the F2 key when the Sony logo 
appears. The BIOS setup menu screen appears.

4

Press the arrow keys to select the Exit menu.