Dell Latitude C640 Service Manual download pdf (Page 57)

Flashing the BIOS: Dell Latitude C540/C640 Service Manual

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Flashing the BIOS

Dell™ Latitude™ C540/C640 Service Manual

To update the basic input/output system (BIOS):

1. Ensure that the AC adapter is plugged in and that the main battery is installed

properly.

2. Turn on the computer and press

to enter the system setup program.

3. Reset the boot sequence to boot first from the floppy drive or the CD drive

(depending on whether your flash BIOS update is supplied on floppy disk or CD).

4. Insert the flash BIOS update floppy disk or CD, and reboot the computer.

The computer updates the BIOS and then automatically reboots.

5. Immediately press

to enter the system setup program, and reset the boot

sequence to the normal setting. Then exit the system setup program.

6. Remove the flash BIOS update floppy disk or CD.

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Dell Latitude C640 Service Manual Page 57