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Lenovo ThinkPad Edge E520 (English) User Guide - Page 153

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Solution: The extended RAM failed. Test your computer's memory with "Lenovo ThinkVantage Toolbox" on page 131. If you have increased memory just before turning the computer on, reinstall it. Then test the memory with Lenovo ThinkVantage Toolbox. • Message: 0250: System battery error. Solution: The backup battery, which is used to preserve the configuration information, such as the date and time, while the computer is tuned off, is depleted. Replace the battery and run ThinkPad Setup to verify the configuration. If you still have a problem, have the computer serviced. • Message: 0251: System CMOS checksum bad. Solution: The system CMOS might have been corrupted by an application program. The computer uses the default settings. Run ThinkPad Setup to reconfigure the settings. If you still see the same error code, have the computer serviced. • Message: 0260: System timer error. Solution: Have the computer serviced. • Message: 0270: Real time clock error. Solution: Have the computer serviced. • Message: 0271: Date and time error. Solution: Neither the date nor the time is set in the computer. Set the date and time, using the ThinkPad Setup. • Message: 0280: Previous boot incomplete. Solution: Your computer was previously unable to complete the boot process. Turn the computer off; then turn it on to start the ThinkPad Setup. Verify the configuration and then restart the computer either by choosing the Exit Saving Changes option under the Restart item or by pressing F10. If you still see the same error code, have the computer serviced. • Message: 02D0: System cache error. Solution: The cache is disabled. Have the computer serviced. • Message: 02F4: EISA CMOS not writable. Solution: Have the computer serviced. • Message: 02F5: DMA test failed. Solution: Have the computer serviced. • Message: 02F6: Software NMI failed. Solution: Have the computer serviced. • Message: 02F7: Fail-safe timer NMI failed Solution: Have the computer serviced. • Message: 1802: Unauthorized network card is plugged in - Power off and remove the network card. Solution: The mini PCI Express network card is not supported on this computer. Remove it. • Message: 1803: Unauthorized daughter card is plugged in - Power off and remove the daughter card. Chapter 10. Troubleshooting computer problems 135

Section	Page
Read this first	7
Important safety information	8
Conditions that require immediate action	9
Safety guidelines	9
Chapter 1. Product Overview	19
Locating computer controls, connectors, and indicators	19
Front view	20
Right-side view	24
Left-side view	25
Bottom view	27
Rear view	28
Status indicators	29
Locating important product information	31
Machine type and model label	31
FCC ID and IC Certification number label	32
Certificate of Authenticity label	33
Features	33
ThinkPad Edge E420 features	33
ThinkPad Edge E520 features	35
Specifications	36
ThinkPad Edge E420 specifications	36
ThinkPad Edge E520 specifications	36
Operating environment	37
ThinkVantage technologies and software	37
Accessing applications in Windows 7	38
Access Connections	39
Active Protection System	40
Fingerprint Software	40
Lenovo Solutions Center	40
Lenovo ThinkVantage Tools	40
Lenovo ThinkVantage Toolbox	41
Message Center Plus	41
Password Manager	41
Power Manager	41
Product Recovery	41
Rescue and Recovery	42
System Update	42
ThinkVantage GPS	42
Chapter 2. Using your computer	43
Registering your computer	43
Frequently asked questions	43
Special keys and buttons	44
ThinkPad Edge E420 special keys	45
ThinkPad Edge E520 special keys	47
Using the UltraNav pointing device	49
Using the TrackPoint pointing device	49
Using the touch pad	51
Behavior of the UltraNav and an external mouse	52
Adding the UltraNav icon to the system tray	52
Power management	53
Checking battery status	53
Using the ac power adapter	53
Charging the battery	54
Maximizing battery life	54
Managing your battery power	54
Power-saving modes	55
Handling the battery	56
Connecting to the network	58
Ethernet connections	58
Wireless connections	58
Using a projector or external display	65
Changing display settings	65
Connecting a projector or external display	66
Using dual displays	68
Using audio features	69
Using an integrated camera	70
Using optical drive	70
Using a flash media Card	71
Inserting a flash media card	71
Removing a flash media card	72
Chapter 3. You and your computer	73
Accessibility and comfort	73
Ergonomic information	73
Adjusting your computer to fit you	74
Accessibility information	75
Traveling with your computer	75
Travel tips	75
Travel accessories	76
Chapter 4. Security	77
Attaching a mechanical lock	77
Using passwords	77
Passwords and sleep (standby) mode	78
Typing passwords	78
Power-on password	78
Hard disk passwords	79
Supervisor password	81
Hard disk security	82
Using a fingerprint reader	83
Notice on deleting data from your hard disk drive	85
Using and understanding firewalls	85
Protecting data against viruses	85
Chapter 5. Recovery overview	87
Creating and using recovery media	87
Creating recovery media	88
Using recovery media	88
Performing backup and recovery operations	89
Performing a backup operation	89
Performing a recovery operation	89
Using the Rescue and Recovery workspace	90
Creating and using a rescue medium	91
Creating a rescue medium	91
Using a rescue medium	91
Reinstalling preinstalled applications and device drivers	92
Solving recovery problems	93
Chapter 6. Replacing devices	95
Static electricity prevention	95
Replacing the battery	95
Replacing the hard disk drive	97
Replacing the optical drive	100
ThinkPad Edge E420	100
ThinkPad Edge E520	103
Installing and replacing the PCI Express Mini Card for wireless WAN	104
Installing and replacing a PCI Express Mini Card for wireless LAN/WiMAX connection	108
Replacing memory	111
Replacing the keyboard	113
ThinkPad Edge E420	113
ThinkPad Edge E520	117
Replacing the SIM card	121
Chapter 7. Enhancing your computer	123
Finding ThinkPad options	123
Chapter 8. Advanced configuration	125
Installing a new operating system	125
Before you begin	125
Installing Windows 7	126
Installing Windows XP	127
Installing device drivers	129
Installing the driver for 4-in-1 media card reader	129
Installing ThinkPad Monitor File for Windows 2000/XP/Vista/7	129
Installing Intel Chipset Support for Windows 2000/XP/Vista/7	130
Installing drivers and software	130
ThinkPad Setup	131
Config menu	131
Date and time menu	132
Security menu	132
Startup menu	133
Restart menu	134
ThinkPad Setup items	134
Updating your system UEFI BIOS	141
Chapter 9. Preventing problems	143
General tips for preventing problems	143
Making sure device drivers are current	144
Getting the latest drivers from the Web site	144
Getting the latest drivers using System Update	144
Taking care of your computer	145
Cleaning the cover of your computer	146
Chapter 10. Troubleshooting computer problems	149
Diagnosing problems	149
Troubleshooting	150
Computer stops responding	150
Spills on the keyboard	151
Error messages	151
Errors without messages	155
Beep errors	156
Memory problems	156
Networking	156
Keyboard and other pointing devices	161
Display and multimedia devices	162
Fingerprint reader problems	169
Battery and power	169
Drives and other storage devices	172
Software problems	174
Ports and connectors	174
Chapter 11. Getting support	177
Before you contact Lenovo	177
Register your computer	177
Download system updates	177
Record information	177
Getting help and service	178
Using diagnostic programs	178
Lenovo support Web site	178
Calling Lenovo	179
Purchasing additional services	179
Appendix A. Regulatory information	181
Wireless related information	181
Location of the UltraConnect wireless antennas	182
Locating wireless regulatory notices	183
Export classification notice	184
Electronic emission notices	184
Federal Communications Commission Declaration of Conformity	184
Industry Canada Class B emission compliance statement	184
European Union - Compliance to the Electromagnetic Compatibility Directive	185
German Class B compliance statement	185
Korea Class B compliance statement	185
Japan VCCI Class B compliance statement	186
Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase	186
Lenovo product service information for Taiwan	186
Additional regulatory information	186
Appendix B. WEEE and recycling statements	187
EU WEEE statements	187
Japan recycling statements	187
Recycling information for Brazil	188
Battery recycling information for Taiwan	188
Battery recycling information for the United States and Canada	189
Battery recycling information for the European Union	189
Appendix C. Notices	191

Match case Limit results 1 per page

Solution

: The extended RAM failed. Test your computer's memory with “Lenovo ThinkVantage Toolbox”

on page 131. If you have increased memory just before turning the computer on, reinstall it. Then test

the memory with Lenovo ThinkVantage Toolbox.

•

Message

: 0250: System battery error.

Solution

: The backup battery, which is used to preserve the conﬁguration information, such as the date

and time, while the computer is tuned off, is depleted. Replace the battery and run ThinkPad Setup to

verify the conﬁguration. If you still have a problem, have the computer serviced.

•

Message

: 0251: System CMOS checksum bad.

Solution

: The system CMOS might have been corrupted by an application program. The computer uses

the default settings. Run ThinkPad Setup to reconﬁgure the settings. If you still see the same error code,

have the computer serviced.

•

Message

: 0260: System timer error.

Solution

: Have the computer serviced.

•

Message

: 0270: Real time clock error.

Solution

: Have the computer serviced.

•

Message

: 0271: Date and time error.

Solution

: Neither the date nor the time is set in the computer. Set the date and time, using the ThinkPad

Setup.

•

Message

: 0280: Previous boot incomplete.

Solution

: Your computer was previously unable to complete the boot process.

Turn the computer off; then turn it on to start the ThinkPad Setup. Verify the conﬁguration and then

restart the computer either by choosing the

Exit Saving Changes

option under the

Restart

item or

by pressing F10.

If you still see the same error code, have the computer serviced.

•

Message

: 02D0: System cache error.

Solution

: The cache is disabled. Have the computer serviced.

•

Message

: 02F4: EISA CMOS not writable.

Solution

: Have the computer serviced.

•

Message

: 02F5: DMA test failed.

Solution

: Have the computer serviced.

•

Message

: 02F6: Software NMI failed.

Solution

: Have the computer serviced.

•

Message

: 02F7: Fail-safe timer NMI failed

Solution

: Have the computer serviced.

•

Message

: 1802: Unauthorized network card is plugged in - Power off and remove the network card.

Solution

: The mini PCI Express network card is not supported on this computer. Remove it.

•

Message

: 1803: Unauthorized daughter card is plugged in - Power off and remove the daughter card.

Chapter 10

Troubleshooting computer problems

135