Troubleshooting
Computer
What should I do if my computer does not start?
❑Make sure your computer is securely plugged into a power source and turned on. Make sure the power indicator shows the power is on.
❑Make sure the battery pack is installed properly and charged.
❑Make sure the floppy disk drive (if applicable) is empty.
❑If your computer is plugged into a power strip or an uninterruptible power supply (UPS), make sure the power strip or UPS is plugged into a power source and turned on.
❑If you are using an external display, make sure it is plugged into a power source and turned on. Make sure the brightness and contrast controls are adjusted correctly. See the manual that came with your display for more information.
❑Disconnect the AC adapter and remove the battery pack. Wait three to five minutes. Reinstall the battery pack, reconnect the AC adapter, and then press the power button to turn on your computer.
❑Condensation may cause your computer to malfunction. If this occurs, do not use the computer for at least one hour.
❑Remove any extra memory modules you may have installed since purchase.
❑Check that you are using the supplied Sony AC adapter. For your safety, use only the genuine Sony rechargeable battery pack and AC adapter, which are supplied by Sony for your VAIO computer.