Lenovo V470 V570 B470 B570 B570e User Guide

Chapter 5. Troubleshooting
37
 Sleep or hibernation problems
The critical low-battery error 
message appears, and the 
computer immediately turns off.The battery power is getting low. Connect the AC adapter to the 
computer, or replace the battery with a fully charged one.
The computer enters sleep mode 
immediately after Power-on self-test 
(POST). Make sure that: 
- The battery is charged.
- The operating temperature is within the acceptable range. See 
“Chapter 2. Use and care Information” of Lenovo...

38
Chapter 5. Troubleshooting
Battery problems
Your computer shuts down before 
the battery status indicator shows 
empty.
-or-
Your computer operates after the 
battery status indicator shows 
empty.Discharge and recharge the battery.
The operating time for a fully 
charged battery is short. For details, see “Handling the battery” in Chapter 2. 
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...

Chapter 5. Troubleshooting
39
For more technical support, please visit consumer product website 
http://consumersupport.lenovo.com.
Other problems
Your computer does not respond.To turn off your computer, press and hold the power button for 4 
seconds or more. If the computer still does not respond, remove the 
AC adapter and the battery. 
Your computer might lock when it enters sleep mode during a 
communication operation. Disable the sleep timer when you are 
working on the network.
The computer does...

40
Appendix A. CRU instructions
Replacing the battery  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
To replace the battery, do the following:
1Turn off the computer, or enter hibernation mode. Disconnect the AC adapter and all cables 
from the computer.
2Close the computer display, and turn the computer over.
3Unlock the manual battery latch  . Holding...

Appendix A. CRU instructions
41
Replacing the hard disk drive  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
You can increase the storage capacity of your computer by replacing the hard disk drive with 
one of greater capacity. You can purchase a new hard disk drive from your reseller or Lenovo 
marketing representative.
The drive is very sensitive. Incorrect handling can cause damage and...

42
Appendix A. CRU instructions
To replace the hard disk drive, do the following:
1Turn off the computer; then disconnect the AC adapter and all cables from the computer.
2Close the computer display, and then turn the computer over.
3Remove the battery pack.
4Remove the Hard disk drive (HDD)/Memory/Mini PCI Express Card slot compartment 
cover.
a. Loosen the screws that secure the compartment cover  .
b. Remove the compartment cover  .
a
b
b
a 

Appendix A. CRU instructions
43
5Remove the frame fixing screw  .
6Pull the tab in the direction shown by arrow  .
c
c
d
d 

44
Appendix A. CRU instructions
7Take out the hard disk drive secured in a metal frame  .
8Remove the screws and detach the metal frame from the hard disk drive.
9Attach the metal frame to a new hard disk drive and tighten the screws.
0Put the hard disk drive gently into the hard disk drive bay with the tab facing upwards and 
the connectors facing each other; then push it firmly into space.
AReinstall the frame fixing screw.
BReinstall the compartment cover and tighten the screws.
CReinstall the battery...

Appendix A. CRU instructions
45
Replacing memory - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
You can increase the amount of memory in your computer by installing a double-data-rate three 
synchronous dynamic random access memory (DDR3 SDRAM)-available as an option-in the 
memory slot of your computer. DDR3 SDRAMs are available in various...

46
Appendix A. CRU instructions
6If two DDR3 SDRAMs are already installed in the memory slot, remove one of them to 
make room for the new one by pressing out on the latches on both edges of the socket at the 
same time. Be sure to save the old DDR3 SDRAM for future use.
7Align the notch of the DDR3 SDRAM with the protrusion of the socket and gently insert the 
DDR3 SDRAM into the socket at a 30-45° angle.
8Push the DDR3 SDRAM inward toward the socket until the latches on both edges of the 
socket are...