Home » Lenovo Manuals » Desktops » Lenovo ThinkCentre A70 » Manual Viewer

Lenovo ThinkCentre A70 Hardware Maintenance Manual for ThinkCentre A70 - Page 263

Power management, Advanced Configuration and Power Interface (ACPI) BIOS, Automatic Power-On features

View all Lenovo ThinkCentre A70 manuals

Add to My Manuals
Save this manual to your list of manuals

Page 263 highlights

7. Reinstall the computer cover and reconnect the power cords for the computer and monitor. See "Completing the parts replacement" on page 94. 8. Turn on the computer and insert the POST and BIOS update (flash update) disc into the optical drive. The recovery session begins. The recovery session will take two to three minutes. During this time, you will hear a series of beeps. 9. After the recovery session is completed, there will be no video, the series of beeps will end, and the system will automatically turn off. 10. Repeat step 1 through step 4. 11. Move the jumper back to the standard position (pin 1 and pin 2). 12. Reinstall any parts and reconnect any cables that have been removed or disconnected. 13. Reinstall the computer cover and reconnect power cords and all other external cables. See "Completing the parts replacement" on page 94. 14. Turn on the computer and remove the disc from the optical drive. Power management Power management reduces the power consumption of certain components of the computer such as the system power supply, processor, hard disk drives, and some monitors. Advanced Configuration and Power Interface (ACPI) BIOS Being an ACPI BIOS system, the operating system is allowed to control the power management features of the computer and the setting for Advanced Power Management (APM) BIOS mode is ignored. Not all operating systems support ACPI BIOS mode. Automatic Power-On features The Automatic Power-On features within the Power Management menu allow you to enable and disable features that turn on the computer automatically. • RTC resume: You can specify a date and time at which the computer will be turned on automatically. This can be either a single event or a daily event. • Wake on LAN: If the computer has a properly configured token-ring or Ethernet LAN adapter card that is Wake on LAN-enabled and there is remote network management software, you can use the Wake on LAN feature. When you set Wake on LAN to Enabled, the computer will turn on when it receives a specific signal from another computer on the local area network (LAN). Chapter 11. Additional service information 257

Section	Page
Chapter 1. About this manual	7
Important safety information	7
Important information about replacing RoHS compliant FRUs	7
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Voltage-selection switch	11
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	12
Grounding requirements	12
Safety notices (multi-lingual translations)	12
Chapter 3. General information	35
Lenovo ThinkVantage Tools	35
ThinkVantage Productivity Center	35
Lenovo Welcome	35
Lenovo Solution Center	36
SimpleTap	36
Additional information resources	36
Specifications	36
For machine types: 0864, 7099, and 7846.	36
For machine types: 0889, 5023, and 7844.	37
Chapter 4. General checkout	39
Problem determination tips	39
Chapter 5. Diagnostic programs	41
Lenovo ThinkVantage Toolbox	41
Lenovo Solution Center	41
PC-Doctor for Rescue and Recovery	42
PC-Doctor for DOS	42
Creating a diagnostic disc	42
Running the diagnostic program from the diagnostic disc	42
Navigating through the diagnostic programs	43
Running tests	43
Viewing the test log	44
Chapter 6. Using the Setup Utility	45
Starting the Setup Utility program	45
Viewing or changing settings	45
Using passwords	45
Password considerations	46
Power-on password	46
Administrator password	46
Setting, changing, or deleting a password	46
Enabling or disabling a device	46
Selecting a startup device	47
Selecting a temporary startup device	47
Viewing or changing the startup device sequence	47
Exiting the Setup Utility program	48
Chapter 7. Symptom-to-FRU index	49
Hard disk drive boot error	49
Power Supply Problems	49
Diagnostic error codes	49
Beep symptoms	67
POST error codes	68
Miscellaneous error messages	69
Undetermined problems	71
Chapter 8. Replacing FRUs (Machine Types: 0864, 7099, and 7846.)	73
Locating connectors, controls, and indicators on the front of your computer	73
Locating connectors and parts on the rear of your computer	74
Locating components	74
Locating parts on the system board	75
Locating internal drives	76
Removing the computer cover	77
Removing and reinstalling the front bezel	78
Installing or replacing a PCI card	80
Installing or replacing a memory module	82
Replacing the battery	84
Replacing the power supply assembly	85
Replacing the heat sink and fan assembly	87
Replacing the microprocessor	89
Replacing the optical drive	92
Replacing the hard disk drive	93
Replacing the card reader	95
Replacing the front audio and USB assembly	96
Replacing the system board	97
Completing the parts replacement	100
Chapter 9. Replacing FRUs (Machine Types: 0889, 5023, and 7844.)	103
Locating connectors, controls, and indicators on the front of your computer	103
Locating connectors and parts on the rear of your computer	104
Locating components	104
Locating parts on the system board	105
Locating internal drives	106
Removing the computer cover	107
Removing and reinstalling the front bezel	108
Accessing the system board components and drives	110
Installing or replacing a PCI card	111
Installing or replacing a memory module	113
Replacing the battery	115
Replacing the heat sink and fan assembly	116
Replacing the microprocessor	119
Replacing the power supply assembly	122
Replacing the optical drive	126
Replacing the system board	129
Replacing the hard disk drive	131
Replacing the card reader	133
Replacing the front audio and USB assembly	135
Replacing the front fan assembly	136
Completing the parts replacement	138
Chapter 10. FRU lists	141
Overall: MT 0864, 7099, and 7846.	141
Mechanical FRUs	149
Keyboard and Mouse	151
Adapters and miscellaneous FRUs	175
Power Cords	176
Recovery discs	181
Windows 7 Professional 32 Recovery CD	181
Windows 7 Professional 32 with MS office starter 2010 Recovery CD	184
Windows 7 Home Basic 32 Recovery CD	188
Windows 7 Home Basic 32 Office Starter 2010 Recovery CD	189
Windows 7 Home Premium 32 Recovery CD	190
Windows 7 Home Premium 32 Office Starter 2010 Recovery CD	191
Windows 7 Home Premium 64 Recovery CD	193
Windows 7 Home Premium 64 with MS Office Starter 2010 Recovery CD	194
Windows 7 Professional 64 Recovery CD	195
Windows 7 Professional 64 with MS office starter 2010 Recovery CD	198
Windows XP Professional Recovery CD	200
Overall: MT 0889, 5023, and 7844.	202
Mechanical FRUs	210
Keyboard and Mouse	212
Adapters and miscellaneous FRUs	234
Power Cords	235
Recovery discs	239
Windows 7 Professional 32 Recovery CD	239
Windows 7 Professional 32 with MS office starter 2010 Recovery CD	242
Windows 7 Home Basic 32 Recovery CD	245
Windows 7 Home Basic 32 Office Starter 2010 Recovery CD	246
Windows 7 Home Premium 32 Recovery CD	247
Windows 7 Home Premium 32 Office Starter 2010 Recovery CD	249
Windows 7 Home Premium 64 Recovery CD	250
Windows 7 Home Premium 64 with MS Office Starter 2010 Recovery CD	252
Windows 7 Professional 64 Recovery CD	253
Windows 7 Professional 64 Office Starter 2010 Recovery CD	255
Windows XP Professional 32 Recovery CD	258
Chapter 11. Additional service information	261
Security features	261
Hardware-controlled passwords	261
Operating system password	261
Vital Product Data	261
BIOS levels	261
Updating (flashing) the BIOS from a disc	261
Updating (flashing) the BIOS from your operating system	262
Recovering from a POST and BIOS update failure	262
Power management	263
Advanced Configuration and Power Interface (ACPI) BIOS	263
Automatic Power-On features	263
Appendix A. Notices	265
Television output notice	266
European conformance CE mark	266
Trademarks	266

Match case Limit results 1 per page

7. Reinstall the computer cover and reconnect the power cords for the computer and monitor. See

“Completing the parts replacement” on page 94.

8. Turn on the computer and insert the POST and BIOS update (ﬂash update) disc into the optical drive.

The recovery session begins. The recovery session will take two to three minutes. During this time, you

will hear a series of beeps.

9. After the recovery session is completed, there will be no video, the series of beeps will end, and the

system will automatically turn off.

10. Repeat step 1 through step 4.

11. Move the jumper back to the standard position (pin 1 and pin 2).

12. Reinstall any parts and reconnect any cables that have been removed or disconnected.

13. Reinstall the computer cover and reconnect power cords and all other external cables. See “Completing

the parts replacement” on page 94.

14. Turn on the computer and remove the disc from the optical drive.

Power management

Power management reduces the power consumption of certain components of the computer such as the

system power supply, processor, hard disk drives, and some monitors.

Advanced Conﬁguration and Power Interface (ACPI) BIOS

Being an ACPI BIOS system, the operating system is allowed to control the power management features

of the computer and the setting for Advanced Power Management (APM) BIOS mode is ignored. Not

all operating systems support ACPI BIOS mode.

Automatic Power-On features

The Automatic Power-On features within the Power Management menu allow you to enable and disable

features that turn on the computer automatically.

•

RTC resume

: You can specify a date and time at which the computer will be turned on automatically.

This can be either a single event or a daily event.

•

Wake on LAN

: If the computer has a properly conﬁgured token-ring or Ethernet LAN adapter card that is

Wake on LAN-enabled and there is remote network management software, you can use the Wake on LAN

feature. When you set Wake on LAN to

Enabled

, the computer will turn on when it receives a speciﬁc

signal from another computer on the local area network (LAN).

Chapter 11

Additional service information

257