2. Enter the Service Tag for your computer or select the appropriate Dell™ computer. Click Go. 3. Click Downloads. 4. Select the appropriate operating system and language for your computer. 5. Select the FlashBIOS Updates download category. Click Go. 6. Click the BIOS link and follow the instructions to download the BIOS to your computer. Back to Contents Page Back to Contents Page Bluetooth™ Module Dell™ Latitude™ X300 Service Manual Replacing the Bluetooth Module 1. Remove the M2 x 5-mm screw. 2. Disconnect the cable from the system board. 3. Lift the assembly out. 4. To replace the Bluetooth module: a. Replace the assembly. b. Connect the cable to the system board. c. Replace the screw. Back to Contents Page CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide. 1 M2 x 5-mm screw 2 Bluetooth module 2U381 3 Bluetooth module cable 4 connector on system board Back to Contents Page Dell Diagnostics Dell™ Latitude™ X300 Service Manual When to Use the Dell Diagnostics Starting the Dell Diagnostics When to Use the Dell Diagnostics If you experience a problem with your computer, perform the checks in the "Solving Problems" section in your User's Guide or Owner's Manual and run the Dell Diagnostics before you contact Dell for technical assistance. Running the Dell Diagnostics may help you resolve the problem without contacting Dell. If you do contact Dell, the test results can provide important information for Dell's service and support personnel. The Dell Diagnostics allows you to: l Perform tests on one or all devices. l Select tests based on a symptom of the problem you are having. l Choose how many times a test is run. l Suspend testing if an error is detected. l Access help information that describes the tests and devices. l Receive status messages that tell you whether tests completed successfully. l Receive error messages if problems are detected. Starting the Dell Diagnostics It is recommended that you print these procedures before you begin. The Dell Diagnostics is located on a hidden diagnostic utility partition on your hard drive. 1. Shut down the computer. 2. If the computer is connected to a media base (docked), undock it. See the documentation that came with your media base for instructions. 3. Connect the computer to an electrical outlet. 4. Turn on the computer. When the DELL™ logo appears, press immediately. If you wait too long and the Microsoft® Windows® logo appears, continue to wait until you see the Windows desktop. Then shut down your computer through the Start menu and try again. 5. When the boot device list appears, highlight Diagnostics and press . The computer runs the Pre-boot System Assessment, a series of initial tests of your system board, keyboard, hard drive, and display. l During the assessment, answer any questions that appear. NOTICE: Use the Dell Diagnostics to test your Dell™ computer only. Using this program with other computers can result in error messages. NOTE: If your computer cannot display a screen image, contact Dell. NOTE: If you cannot see anything on your display, hold down the mute button and press the computer's power button to begin the Dell Diagnostics. The computer automatically runs the Pre-boot System Assessment. NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities CD. l If a failure is detected, the computer stops and beeps. To stop the assessment and restart the computer, press ; to continue to the next test, press ; to retest the component that failed, press . l If failures are detected during the Pre-boot System Assessment, write down the error code(s) and contact Dell before continuing on to the Dell Diagnostics. If the Pre-boot System Assessment completes successfully, you receive the message Booting Dell Diagnostic Utility Partition. Press any key to continue. 6. Press any key to start the Dell Diagnostics from the diagnostics utility partition on your hard drive. 7. When the Dell Diagnostics Main Menu appears, select the test you want to run. Dell Diagnostics Main Menu 1. After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want. 2. If a problem is encountered during a test, a message appears with an error code and a description of the problem. Write down the error code and problem description and follow the instructions on the screen. If you cannot resolve the error condition, contact Dell. See your User's Guide or Owner's Manual for contact information. 3. If you run a test from the Custom Test or Symptom Tree option, click the applicable tab described in the following table for more information. 4. When the tests are complete, close the test screen to return to the Main Menu screen. To exit the Dell Diagnostics and restart the computer, close the Main Menu screen. Back to Contents Page Option Function Express Test...
