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Lenovo ThinkCentre M55 Hardware Maintenance Manual - Page 48

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If the computer does not have a CD burner or you do not have Internet access, see "Creating diagnostic diskettes" on page 42. Creating diagnostic diskettes To create diagnostic diskettes, download the PC-Doctor for DOS diagnostic program from http://www.lenovo.com/support/ onto two blank, formatted diskettes. If you do not have Internet access, create the diagnostic diskettes using the following procedure: Note: You will need a diskette drive on the computer or a USB diskette drive to complete this procedure. 1. Shut down the operating system and turn off the computer. 2. If you are using a USB diskette drive, plug it into the computer. 3. Repeatedly press and release the F11 key as you turn on the computer. 4. When you hear beeps or see a logo screen, stop pressing the F11 key. The Rescue and Recovery workspace opens. Note: For some models, press the Esc key to enter Rescue and Recovery. 5. From the Rescue and Recovery workspace, select Create diagnostic disks. 6. Follow the instructions on the screen. 7. When prompted, insert a blank, formatted diskette into the diskette drive and continue to follow the instructions on the screen. 8. When the operation is complete, remove the diskette and click Quit. 9. Insert another blank, formatted diskette into the diskette drive and continue to follow the instructions on the screen. 10. When the operation is complete, remove the diskette and click Quit. Running diagnostics from the CD or diskettes 1. If you are running diagnostics from diskettes using a USB diskette drive, plug in the USB drive. Note: The optical drive or diskette drive must be selected in the startup sequence. See "Selecting a startup device" on page 48 for instructions on how to select the startup device. 2. Insert the CD or diskette. 3. Restart the computer. 4. When the diagnostics program opens, follow the instructions on the screen. Note: If you are running diagnostics from a diskette, when prompted, remove the first diskette and insert the second diskette. 5. Select the diagnostic test you want to run. Press the F1 key for additional help. 6. Remove the CD or diskette when the program finishes. Running diagnostics from the Rescue and Recovery workspace If you do not have a diagnostic CD image or diagnostic diskette, you can run the PC-Doctor for DOS diagnostic program from the Rescue and Recovery workspace. To run diagnostics from the Rescue and Recovery workspace, use the following procedure: 1. Shut down the operating system and turn off the computer. 2. Repeatedly press and release the F11 key as you turn on the computer. 3. When you hear beeps or see a logo screen, stop pressing the F11 key. The Rescue and Recovery workspace opens. 42 Hardware Maintenance Manual

Section	Page
Chapter 1. About this manual	7
Important Safety Information	7
Strategy for replacing FRUs for CTO, CMV, and GAV products	8
Product definition	8
FRU Identification for CTO, CMV, and GAV products	8
Important information about replacing RoHS compliant FRUs	9
Chapter 2. Safety information	11
General safety	11
Electrical safety	11
Safety inspection guide	13
Handling electrostatic discharge-sensitive devices	13
Grounding requirements	14
Safety notices (multi-lingual translations)	14
Chapter 3. General information	37
The ThinkVantage™ Productivity Center program	37
Additional information resources	37
Physical specifications	37
Types 8009, 8791, 8795, 8799, 8803, and 8807	37
Types 6488, 8010, 8792, 8796, 8800, 8804, 8808, and 9168	38
Types 8011, 8793, 8797, 8801, 8805, 8810, and 9166	39
Types 6487, 8012, 8794, 8798, 8802, 8806, 8811, and 9167	40
Chapter 4. General Checkout	43
Problem determination tips	44
Chapter 5. Diagnostics	47
PC-Doctor for Windows	47
PC-Doctor for DOS	47
Creating a diagnostic CD image	47
Creating diagnostic diskettes	48
Running diagnostics from the CD or diskettes	48
Running diagnostics from the Rescue and Recovery workspace	48
PC-Doctor for Windows PE	49
Running diagnostics from the Rescue and Recovery workspace	49
Navigating through the diagnostics programs	49
Running tests	49
Test results	50
Fixed disk advanced test (FDAT)	50
Quick and Full erase - hard drive	52
Viewing the test log	52
Chapter 6. Using the Setup Utility	53
Starting the Setup Utility program	53
Viewing and changing settings	53
Exiting from the Setup Utility program	53
Using passwords	53
User Password	53
Administrator Password	54
Setting, changing, and deleting a password	54
Selecting a startup device	54
Selecting a temporary startup device	54
Changing the startup device sequence	54
Advanced settings	55
Chapter 7. Symptom-to-FRU Index	57
Hard disk drive boot error	57
Power Supply Errors	57
Diagnostic error codes	58
Beep symptoms	76
No-beep symptoms	78
POST error codes	78
Miscellaneous error messages	80
Undetermined problems	82
Chapter 8. FRU lists	85
Machine Type 6487	85
Machine Type 6488	96
Machine Type 8009	106
Machine Type 8010	116
Machine Type 8011	120
Machine Type 8012	129
Machine Type 8791	141
Machine Type 8792	151
Machine Type 8793	161
Machine Type 8794	171
Machine Type 8795	181
Machine Type 8796	190
Machine Type 8797	200
Machine Type 8798	209
Machine Type 8799	219
Machine Type 8800	231
Machine Type 8801	243
Machine Type 8802	254
Machine Type 8803	265
Machine Type 8804	277
Machine Type 8805	286
Machine Type 8806	296
Machine Type 8807	305
Machine Type 8808	318
Machine Type 8810	335
Machine Type 8811	349
Machine Type 9166	368
Machine Type 9167	372
Machine Type 9168	376
Chapter 9. Additional Service Information	381
Security features	381
Hardware controlled Passwords	381
Operating system password	381
Vital product data	381
BIOS levels	381
Flash update procedures	381
Updating (flashing) BIOS from a diskette or CD-ROM	382
Updating (flashing) BIOS from your operating system	382
Recovering from a POST/BIOS update failure	382
Power management	383
Automatic configuration and power interface (ACPI) BIOS	383
Automatic Power-On features	383
Recovering software using the Rescue and Recovery program	383
Appendix A. Notices	385
Television output notice	386

Match case Limit results 1 per page

If the computer does not have a CD burner or you do not have Internet access, see “Creating diagnostic

diskettes” on page 42.

Creating diagnostic diskettes

To create diagnostic diskettes, download the PC-Doctor for DOS diagnostic program from

http://www.lenovo.com/support/ onto two blank, formatted diskettes.

If you do not have Internet access, create the diagnostic diskettes using the following procedure:

Note:

You will need a diskette drive on the computer or a USB diskette drive to complete this procedure.

Shut down the operating system and turn off the computer.

If you are using a USB diskette drive, plug it into the computer.

Repeatedly press and release the F11 key as you turn on the computer.

When you hear beeps or see a logo screen, stop pressing the F11 key. The Rescue and Recovery

workspace opens.

Note:

For some models, press the Esc key to enter Rescue and Recovery.

From the Rescue and Recovery workspace, select

Create diagnostic disks

Follow the instructions on the screen.

When prompted, insert a blank, formatted diskette into the diskette drive and continue to follow the

instructions on the screen.

When the operation is complete, remove the diskette and click

Quit

Insert another blank, formatted diskette into the diskette drive and continue to follow the instructions on

the screen.

10.When the operation is complete, remove the diskette and click

Quit

Running diagnostics from the CD or diskettes

If you are running diagnostics from diskettes using a USB diskette drive, plug in the USB drive.

Note:

The optical drive or diskette drive must be selected in the startup sequence. See “Selecting a

startup device” on page 48 for instructions on how to select the startup device.

Insert the CD or diskette.

Restart the computer.

When the diagnostics program opens, follow the instructions on the screen.

Note:

If you are running diagnostics from a diskette, when prompted, remove the ﬁrst diskette and

insert the second diskette.

Select the diagnostic test you want to run. Press the F1 key for additional help.

Remove the CD or diskette when the program ﬁnishes.

Running diagnostics from the Rescue and Recovery workspace

If you do not have a diagnostic CD image or diagnostic diskette, you can run the PC-Doctor for DOS

diagnostic program from the Rescue and Recovery workspace. To run diagnostics from the Rescue and

Recovery workspace, use the following procedure:

Shut down the operating system and turn off the computer.

Repeatedly press and release the F11 key as you turn on the computer.

When you hear beeps or see a logo screen, stop pressing the F11 key. The Rescue and Recovery

workspace opens.

Hardware Maintenance Manual