Lenovo B50-80 (English) User Guide - Lenovo B40-xx, B50-xx - Page 36

Troubleshooting, Sound problems, Battery problems, Hard disk drive problem

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Chapter 4. Troubleshooting Sound problems No sound can be heard from the speakers even when the volume is turned up. • Make sure that: - The mute function is off. - The combo audio jack is not used. - The speakers are selected as the playback device. Battery problems Your computer shuts down before the power and battery status indicator shows empty. -orYour computer operates after the power and battery status indicator shows empty. • Reset the battery gauge using Lenovo Energy Management. If the problem persists, replace with a new battery pack. The computer does not • The surge protector in the battery might be active. operate with a fully charged Turn off the computer for one minute to reset the battery. protector; then turn on the computer again. Hard disk drive problem The hard disk drive does not • In the Boot menu in the BIOS setup utility, make work. sure that the hard disk drive is included in the EFI list. 30

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Chapter 4. Troubleshooting
Sound problems
No sound can be heard
from the speakers even
when the volume is turned
up.
• Make sure that:
- The mute function is off.
- The combo audio jack is not used.
- The speakers are selected as the playback device.
Battery problems
Your computer shuts down
before the power and
battery status indicator
shows empty.
-
or
-
Your computer operates
after the power and battery
status indicator shows
empty.
• Reset the battery gauge using Lenovo Energy
Management. If the problem persists, replace with a
new battery pack.
The computer does not
operate with a fully charged
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.
Hard disk drive problem
The hard disk drive does not
work.
• In the
Boot
menu in the BIOS setup utility, make
sure that the hard disk drive is included in the
EFI
list.