Lenovo THINKPAD E40 Hardware Maintenance Manual

Also see for 01994JU: Brochure

Contents

Checkout guideUse the following procedures as a guide in identifying and correcting problemswith the ThinkPad Notebook.Note: The diagnostic tests are intended to test only ThinkPad products. The use ofnon-ThinkPad products, prototype cards, or modified options can lead to falseindications of errors and invalid system responses.1. Identify the failing symptoms in as much detail as possible.2. Verify the symptoms. Try to re-create the failure by running the diagnostic testor by repeating the operation.Diagnostics using PC-Doctor for DOSThe ThinkPad Notebook has a test program called PC-Doctor for DOS (hereaftercalled PC-Doctor.) You can detect errors by running the diagnostics test included inPC-Doctor.For some possible configurations of the computer, PC-Doctor might not runcorrectly. To avoid this problem, you need to initialize the computer setup by useof the BIOS Setup Utility before you run PC-Doctor.To enter BIOS Setup Utility, do as follows:1. Turn on the computer.2. When the ThinkPad logo comes up, immediately press F1 to enter the BIOSSetup Utility.Note: If a supervisor password has been set by the customer, BIOS Setup Utilitymenu appears after the password is entered. You can start the utility by pressingEnter instead of entering the supervisor password; however, you cannot change theparameters that are protected by the supervisor password.On the BIOS Setup Utility screen, press F9, Enter, F10, and then Enter.Note: When you initialize the computer configuration, some devices are disabled,such as the serial port. If you test one of these devices, you will need to enable itby using Configuration utility for DOS. The utility is available on the followingWeb site: http://www.lenovo.com/supportNote:PC-Doctor for DOS is available at the following Web site: http://www.lenovo.com/supportTo create the PC-Doctor diagnostic CD, follow the instructions on the Web site.General checkout 47