Dell Precision M6400 Service Manual - Page 4

Troubleshooting: Dell Precision M6400 Service Manual computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance. When to Use the Dell Diagnostics If you experience a problem with your computer, perform the checks in Solving Problems, and then run the Dell Diagnostics before contacting Dell for assistance. Start the Dell Diagnostics from your hard drive or from the Drivers and Utilities media provided with your computer. NOTE: The Drivers and Utilities media is optional and may not ship with your computer. NOTE: The Dell Diagnostics only operate on Dell computers. Starting the Dell Diagnostics From Your Hard Drive Before running the Dell Diagnostics, enter system setup to review your computer's configuration information, and ensure that the device you want to test is displayed in system setup and is active. For more information on using the system setup program, see the Dell™ Technology Guide at support.dell.com. The Dell Diagnostics is located on a separate diagnostic utility partition on your hard drive. NOTE: If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions. NOTE: If your computer does not display a screen image, contact Dell Support. 1. Ensure that the computer is connected to an electrical outlet that is known to be working properly. 2. Press and hold the key, then turn on your computer. NOTE: Alternatively, you can select Diagnostics from the one-time boot menu at startup. The computer runs the Pre-boot System Assessment (PSA), a series of initial tests of your system board, keyboard, display, memory, hard drive, etc. During the assessment, answer any questions that appear. If failures are detected during the Pre-boot System Assessment, write down the error code(s) and contact Dell Support. If the Pre-boot System Assessment completes successfully, the following message appears: "Booting Dell Diagnostic Utility Partition. Press any key to continue." NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities media (see Starting the Dell Diagnostics From the Drivers and Utilities Media). 3. Press any key to start the Dell Diagnostics from the diagnostics utility partition on your hard drive. 4. Press to select Test System and then press . NOTE: It is recommended that you select Test System to run a complete test on your computer. Selecting Test Memory initiates the extended memory test, which can take up to thirty minutes or more to complete. When the test completes, record the test results and then press any key to return to the previous menu. 5. At the Dell Diagnostics Main Menu, left-click with the touch pad/mouse, or press and then , to select the test you want to run (see Dell Diagnostics Main Menu). file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]