Lenovo IdeaPad U410 User Manual page 40

Chapter 5. Troubleshooting
Sound problems
No sound can be heard
from the speaker even
when the volume is turned
up.
Battery problems
Your computer shuts down
before the battery status
indicator shows empty.
-or-
Your computer operates
after the battery status indi-
cator shows empty.
The computer does not
operate with a fully charged
battery.
A hard disk drive problem
The hard disk drive does
not work.
A startup problem
®
The Microsoft
operating system does not
start.
36
• Make sure that:
- The Mute function is off.
- The headphone jack is not used.
- Speakers are selected as the playback device.
• Discharge and recharge the battery.
• The surge protector in the battery might be active.
Turn off the computer for one minute to reset the
protector; then turn on the computer again.
• In the Boot menu in BIOS setup utility, make sure
that the hard disk drive is included in the Boot
Priority Order correctly.
• Use the OneKey Rescue system to help solve or
Windows
identify your problem. For details about OneKey
Rescue system, see "Chapter 4. OneKey Rescue
system" on page 28.