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Chapter 5. Troubleshooting
The system cannot be
switched from highperform-
ance GPU to power-saving
GPU.
• If you are outputting the screen to an external
display through an HDMI cable, you might not be
able to switch to power-saving GPU. Change the
display device back to the LCD display of your
notebook before you switch to power-saving GPU.
A Password problem
I forgot my password. • If you forget your user password, you must take
your computer to a Lenovo authorized servicer or a
marketing representative to have the password
changed.
• If you forget your HDD password, a Lenovo
authorized servicer cannot reset your password or
recover data from the hard disk. You must take your
computer to a Lenovo authorized servicer or a
marketing representative to have the hard disk drive
replaced. Proof of purchase is required, and a fee will
be charged for parts and service.
• If you forget your supervisor password, a Lenovo
authorized servicer cannot reset your password. You
must take your computer to a Lenovo authorized
servicer or a marketing representative to have the
system board replaced. Proof of purchase is
required, and a fee will be charged for parts and
service.