CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Back to Contents Page System Setup Dell™ Latitude™ 2100 Service Manual Menu Entering System Setup Menu Press when the Dell logo appears to initiate a one-time boot menu with a list of the valid boot devices available to the computer. The devices listed on the boot menu depend on the bootable devices installed in your computer. This menu is useful when you want to boot to a particular device, or bring up the system diagnostics. Using the boot menu does not make any changes to the boot order stored in the BIOS. Entering System Setup Press to enter System Setup and change the user-definable settings. If you have trouble entering System Setup using this key, press when the keyboard LEDs first flash. Back to Contents Page Back to Contents Page Diagnostics Dell™ Latitude™ 2100 Service Manual Diagnostic Light Codes Battery Light Codes No-POST Light Codes Diagnostic Light Codes Diagnostic lights are located in two areas of your computer: l Bottom left of the palm rest l Top right side of the keyboard Battery Light Codes If your computer is connected to an electrical outlet, the light operates as follows: l Solid blue – The battery is charging. l Flashing blue – The battery is almost fully charged. l Fast flashing orange and then solid green – The battery is in temporary failure. l Fast flashing orange – The battery is in a fatal failure. If your computer is running on a battery, the light operates as follows: l Off – The battery is adequately charged, or the computer is turned off. l Flashing orange – The battery charge is low. l Solid orange – The battery charge is critically low. l Fast flashing orange and then solid green – The battery is in temporary failure. l Fast flashing orange – The battery is in a fatal failure. No-POST Codes The numeric key light, caps lock light, and scroll lock light are also used to diagnose issues that may occur in a no-POST scenario. 1 power light 2 hard drive activity light 3 battery light 4 wireless networking activity light 5 numeric key light 6 caps lock light 7 scroll lock light Appearance Description Next Step ON-FLASH-FLASH 1. Install supported memory modules. Back to Contents Page No SODIMMs are installed 2. If memory is already present, reseat the module(s) one at time in each slot. 3. Try known good memory from another computer or replace the memory. 4. Replace the system board. FLASH-ON-ON System board error 1. Reseat the processor. 2. Replace the system board. 3. Replace the processor. FLASH-ON-FLASH LCD Panel Error 1. Reseat the LCD cable. 2. Replace the LCD panel. 3. Replace the video card/system board. OFF-FLASH-OFF Memory compatibility error 1. Install compatible memory modules. 2. If two modules are installed, remove one and test. Try the other module in the same slot and test. Test the other slot with both modules. 3. Replace the memory. 4. Replace the system board. ON-FLASH-ON Memory is detected but has errors 1. Reseat the memory. 2. If two modules are installed remove one and test. Try the other module in the same slot and test. Test the other slot with both modules. 3. Replace the memory 4. Replace the system board. OFF-FLASH-FLASH Modem Error 1. Reseat the modem. 2. Replace the modem. 3. Replace the system board. FLASH-FLASH-FLASH System board error 1. Replace the system board. FLASH-FLASH-OFF Option ROM Error 1. Reseat the device. 2. Replace the device. 3. Replace the system board. OFF-ON-OFF Storage device error 1. Reseat the hard drive and optical drive. 2. Test the computer with just the hard drive and just the optical drive. 3. Replace the device that is causing the failure. 4. Replace the system board. FLASH-FLASH-ON Video card error 1. Replace the system board. Back to Contents Page Adding and Replacing Parts Dell™ Latitude™ 2100 Service Manual Back to Contents Page Battery Access Panel Coin-Cell Battery Heat Sink Hard Drive Bracket Display Bezel Display Panel Display Brackets DC Power Cable Hinge Cover Keyboard Memory WLAN Card Hard Drive Display Assembly Display LED Board Display Cable Display Hinges System Board Internal Card With Bluetooth® Wireless Technology Back to Contents Page Passwords Dell™ Latitude™ 2100 Service Manual Using a System Password Using an Administrator Password Using a Hard-Drive Password Passwords are not enabled at the factory. You must enable this function in System Setup if you wish to use a password. If you forget a password, search for information on how to clear a password from your computer. A system password, an administrator password, and a hard drive password all prevent unauthorized access to your computer, although each does so in a different way. The following table identifies types and features of passwords available on your computer. Passwords provide a high level of secu...
