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Lenovo ThinkPad Edge E425 (English) User Guide - Page 135

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• 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 ThinkPad Setup. • Message: 0280: Previous boot incomplete. Solution: Your computer was unable to complete the boot process. Turn the computer off; then turn it on to start 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. Solution: The daughter card is not supported on this computer. Remove it. • Message: 1805: Unauthorized Wireless USB card is plugged in - Power off and remove the Wireless USB card. Solution: The Wireless USB card is not supported on this computer. Remove it. • Message: 2100: Initialization error on HDD0 (Main HDD). Solution: The hard disk drive is not working. Have the hard disk drive serviced. Chapter 9. Troubleshooting computer problems 117

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 E425 features	33
ThinkPad Edge E525 features	34
Specifications	36
Operating environment	36
ThinkVantage Technologies and software	37
Accessing applications	37
Access Connections	39
Active Protection System	39
Fingerprint Software	39
Lenovo Solutions Center	39
Lenovo ThinkVantage Tools	40
Lenovo ThinkVantage Toolbox	40
Message Center Plus	40
Password Manager	40
Power Manager	40
Product Recovery	41
Rescue and Recovery	41
System Update	41
ThinkVantage GPS	41
Chapter 2. Using your computer	43
Registering your computer	43
Frequently asked questions	43
Special keys and buttons	44
ThinkPad Edge E425 special keys	45
Thinkpad Edge E525 special keys	47
Using the UltraNav pointing device	49
Using the TrackPoint pointing device	49
Using the touch pad	51
Using the UltraNav pointing device and an external mouse	52
Adding the UltraNav icon in the Windows notification area	52
Power management	52
Checking battery status	53
Using the ac power adapter	53
Charging the battery	53
Maximizing battery life	54
Managing your battery power	54
Power-saving modes	54
Handling the battery	55
Connecting to the network	57
Ethernet connections	57
Wireless connections	57
Using a projector or an external display	60
Changing display settings	60
Connecting a projector or an external display	60
Using dual displays	61
Using audio features	62
Using an integrated camera	63
Using the optical drive	64
Using a flash media Card	64
Inserting a flash media card	64
Removing a flash media card	65
Chapter 3. You and your computer	67
Accessibility and comfort	67
Ergonomic information	67
Adjusting your computer to fit you	68
Accessibility information	69
Traveling with your computer	69
Travel tips	69
Travel accessories	70
Chapter 4. Security	71
Attaching a mechanical lock	71
Using passwords	71
Passwords and sleep mode	71
Typing passwords	72
Power-on password	72
Hard disk passwords	73
Supervisor password	74
Hard disk security	76
Using a fingerprint reader	76
Notice on deleting data from your hard disk drive	78
Using firewalls	79
Protecting data against viruses	79
Chapter 5. Recovery overview	81
Creating and using recovery media	81
Creating recovery media	82
Using recovery media	82
Performing backup and recovery operations	82
Performing a backup operation	83
Performing a recovery operation	83
Using the Rescue and Recovery workspace	83
Creating and using a rescue medium	84
Creating a rescue medium	84
Using a rescue medium	84
Reinstalling preinstalled applications and device drivers	85
Solving recovery problems	86
Chapter 6. Replacing devices	87
Static electricity prevention	87
Replacing the battery	87
Replacing the hard disk drive	89
Replacing the optical drive	92
ThinkPad Edge E425	92
ThinkPad Edge E525	95
Replacing a PCI Express Mini Card for wireless LAN connection	96
Replacing a memory module	99
Replacing the keyboard	102
ThinkPad Edge E425	102
ThinkPad Edge E525	106
Chapter 7. Advanced configuration	111
Installing a new operating system	111
Before you begin	111
Installing Windows 7 operating system	112
Installing device drivers	113
Installing the driver for the 4-in-1 media card reader	113
Installing Intel Chipset Support for Windows 2000/XP/Vista/7	113
Installing drivers and software	113
ThinkPad Setup	113
Config menu	114
Date/Time menu	115
Security menu	115
Startup menu	116
Restart menu	117
ThinkPad Setup items	117
Updating your system UEFI BIOS	123
Chapter 8. Preventing problems	125
General tips for preventing problems	125
Making sure device drivers are current	126
Getting the latest drivers from the Web site	126
Getting the latest drivers using System Update	126
Taking care of your computer	126
Cleaning the cover of your computer	128
Chapter 9. Troubleshooting computer problems	131
Diagnosing problems	131
Troubleshooting	132
Computer stops responding	132
Spills on the keyboard	133
Error messages	133
Errors without messages	137
Beep errors	138
Memory module problems	138
Networking problems	138
Problems with the keyboard and other pointing devices	140
Display and multimedia devices	140
Fingerprint reader problems	145
Battery and power problems	145
Problems with drives and other storage devices	148
Software problems	150
Problems with ports and connectors	150
Chapter 10. Getting support	151
Before you contact Lenovo	151
Registering your computer	151
Downloading system updates	151
Recording information	151
Getting help and service	152
Using diagnostic programs	152
Lenovo Support Web site	152
Calling Lenovo	153
Finding ThinkPad options	153
Purchasing additional services	154
Appendix A. Regulatory information	155
Wireless related information	155
Location of the UltraConnect wireless antennas	156
Locating wireless regulatory notices	157
Export classification notice	157
Electronic emission notices	157
Federal Communications Commission Declaration of Conformity	157
Industry Canada Class B emission compliance statement	157
European Union - Compliance to the Electromagnetic Compatibility Directive	158
German Class B compliance statement	158
Korea Class B compliance statement	158
Japan VCCI Class B compliance statement	159
Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase	159
Lenovo product service information for Taiwan	159
Additional regulatory information	159
Appendix B. WEEE and recycling statements	161
EU WEEE statements	161
China WEEE statement	161
Japan recycling statements	161
Recycling information for Brazil	162
Battery recycling information for Taiwan	163
Battery recycling information for the United States and Canada	163
Battery recycling information for the European Union	163
Appendix C. Notices	165

Match case Limit results 1 per page

•

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 ThinkPad

Setup.

•

Message

: 0280: Previous boot incomplete.

Solution

: Your computer was unable to complete the boot process.

Turn the computer off; then turn it on to start 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.

Solution

: The daughter card is not supported on this computer. Remove it.

•

Message

: 1805: Unauthorized Wireless USB card is plugged in - Power off and remove the Wireless

USB card.

Solution

: The Wireless USB card is not supported on this computer. Remove it.

•

Message

: 2100: Initialization error on HDD0 (Main HDD).

Solution

: The hard disk drive is not working. Have the hard disk drive serviced.

Chapter 9

Troubleshooting computer problems

117