Lenovo 4157 - ThinkStation S20 - 2 GB RAM, Hardware Maintenance Manual

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PC-Doctor for DOS
Use PC-Doctor for DOS, if you are unable to start the Windows operating system or if PC-Doctor for
Windows has not been successful in isolating a possible problem. You can run PC-Doctor for DOS from a
diagnostic CD image or diagnostic diskettes that have been created.
Note: It is important to create a diagnostic CD image or diagnostic diskettes in case PC-Doctor for Windows
PE cannot be run from the Rescue and Recovery workspace.
You can also download the latest version of the PC-Doctor for DOS diagnostic program from:
http://www.lenovo.com/support. The PC-Doctor for DOS diagnostic program is part of the Rescue and
Recovery workspace and runs independently of the Windows operating system. Use PC-Doctor for DOS, if
you are unable to start the Windows operating system or if Lenovo ThinkVantage Toolbox and PC-Doctor for
Windows PE have not been successful in isolating a possible problem. You can run PC-Doctor for DOS from
a diagnostic CD/DVD image that you create. You can also run PC-Doctor for DOS from the Rescue and
Recovery workspace.
Note: It is important to create a diagnostic CD/DVD image in case PC-Doctor for DOS cannot be run from
the Rescue and Recovery workspace.
Creating a diagnostic CD/DVD image
To create a diagnostic CD/DVD image, download a self-starting bootable CD/DVD image (known as an ISO
image) of the diagnostic program from http://www.lenovo.com/support. After you download the image, you
can create the CD/DVD using any CD/DVD burning software.
Running diagnostics from the disc
To run diagnostics from the diagnostic CD/DVD image that you created, use the following procedure:
1. Make sure the computer is turned off.
2. Insert the disc into the optical drive.
3. Restart the computer.
Note: If the diagnostic program does not start, you might not have your optical drive set as a startable
device. See “Selecting a startup device” on page 41 for instructions on how to change the startup device.
4. When the diagnostics program opens, follow the instructions on the screen.
5. When the program finishes, be sure to remove the disc from the drive.
6. Select the diagnostic test you want to run. Press the F1 key for additional help.
Running diagnostics from the Rescue and Recovery workspace
To run diagnostics from the Rescue and Recovery workspace, use the following procedure:
Note: If you did not create a diagnostic CD/DVD image, you can run the PC-Doctor for DOS diagnostic
program from the Rescue and Recovery workspace.
1. Shut down the operating system and turn off the computer.
2. Repeatedly press and release the F11 key when 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.
Note: For some models, press the Esc key to enter the Rescue and Recovery.
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ThinkStation Hardware Maintenance Manual