Lenovo ThinkPad Edge E330 Hardware Maintenance Manual - Page 37

Note:

After restoring a drive to the factory default settings, you might need to reinstall some device drivers.

Passwords

As many as three passwords might be needed for a ThinkPad notebook computer: the power-on password,

the hard disk password, and the supervisor password.

If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the

computer is turned on. The computer does not start until the password is entered.

Note:

If only a supervisor password is set, the password prompt will not be displayed when the operating

system is started.

Power-on password

A power-on password protects the system from being turned on by an unauthorized person. The password

must be entered before the operating system can be started. For instructions on how to remove the

power-on password, see “How to remove the power-on password” on page 31.

Hard disk password

There are two hard disk passwords:

•

User hard disk password - for the user

•

Master hard disk password - for the system administrator, who can use it to get access to the hard disk

even if the user has changed the user hard disk password.

Note:

There are two modes for the hard disk password:

User only

and

Master + User

. The

Master + User

mode requires two hard disk passwords; the system administrator enters both in the same operation. The

system administrator then provides the user hard disk password to the system user.

Attention:

If the user hard disk password has been forgotten, check whether a master hard disk password

has been set. If a master hard disk password has been set, it can be used to access the hard disk drive. If

no master hard disk password is available, neither Lenovo nor Lenovo authorized service technicians provide

any services to reset either the user hard disk password or the master hard disk password, or to recover data

from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.

For instructions on how to remove the hard disk password, see “How to remove the hard disk password”

on page 32.

Supervisor password

A supervisor password protects the system information stored in the ThinkPad Setup program. The user

must enter the supervisor password in order to get access to the ThinkPad Setup program and change the

system conﬁguration.

Attention:

If the supervisor password has been forgotten and cannot be made available to the service

technician, there is no service procedure to reset the password. The system board must be replaced for

a scheduled fee.

How to remove the power-on password

To remove the power-on password, do one of the following:

If no supervisor password has been set, do the following to remove the power-on password:

1. Turn off the computer.

Chapter 4

.

Related service information

31

Section	Page
About this manual	5
Chapter 1. Safety information	7
General safety	7
Electrical safety	8
Safety inspection guide	9
Handling devices that are sensitive to electrostatic discharge	9
Grounding requirements	10
Safety notices (multilingual translations)	10
Chapter 2. Important service information	25
Strategy for replacing FRUs	25
Strategy for replacing a hard disk drive	26
Important notice for replacing a system board	26
How to use error message	26
Strategy for replacing FRUs for CTO, CMV, and GAV	26
Product definition	26
FRU identification for CTO, CMV, and GAV products	27
Chapter 3. General checkout	29
What to do first	29
Checkout guide	30
Lenovo Solution Center	30
Quick test programs	30
UEFI diagnostic program	31
Bootable diagnostic programs	31
Power system checkout	32
Checking the ac power adapter	32
Checking operational charging	33
Checking the battery pack	33
Checking the backup battery	34
Chapter 4. Related service information	35
Restoring the factory contents by using Product Recovery discs	35
Restoring the factory contents by using Recovery Disc Set	35
Passwords	37
Power-on password	37
Hard disk password	37
Supervisor password	37
How to remove the power-on password	37
How to remove the hard disk password	38
Power management	38
Screen blank mode	38
Sleep mode	39
Hibernation mode	39
Symptom-to-FRU index	40
Numeric error codes	40
Error messages	41
No-beep symptoms	41
LCD-related symptoms	41
Intermittent problems	42
Undetermined problems	42
Chapter 5. Status indicators	45
Chapter 6. Special keys	47
Chapter 7. Locations	49
Locating computer controls, connectors, and indicators	49
Front view	49
Rear view	50
Bottom view	50
Locating FRUs and CRUs	51
Major FRUs and CRUs	52
LCD FRUs	54
Chapter 8. FRU replacement notices	55
Screw notices	55
Retaining serial numbers	56
Restoring the serial number of the system unit	56
Retaining the UUID	57
Reading or writing the ECA information	57
Chapter 9. Removing or replacing a FRU	59
General guidelines	59
Before servicing your computer	60
Removing the SIM card	60
1010 Battery pack	60
1020 Bottom cover	61
1030 Memory module	62
1040 Hard disk drive or solid-state drive	63
1050 PCI Express Mini Card for wireless LAN	65
1060 PCI Express Half Mini Card for wireless WAN or mSATA solid	67
1070 Backup battery	70
1080 Keyboard	71
1090 Keyboard bezel assembly and power button sub card	74
1100 Thermal fan assembly	76
1110 Microprocessor	78
1120 System board assembly and VGA sub card	79
1130 Speaker assembly	83
2010 LCD unit, DC-in cable, and base cover assembly	84
2020 LCD bezel assembly	89
2030 LCD panel and hinges	90
2040 Integrated camera	92
2050 Microphone	93
2060 LCD cable assembly	93
2070 Wireless LAN antenna assembly, wireless WAN antenna assembl	94
Appendix A. Notices	97
Electronic emission notices	98

Lenovo ThinkPad Edge E330 Hardware Maintenance Manual - Page 37

Passwords, Power-on password, Hard disk password, Supervisor password - driver

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