Dell 3905 - Manuals

2. Click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down . 2. Ensure that the computer and all attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, press and hold...

2 Removing and Installing Components This section provides detailed information on how to remove or install the components from your computer. Recommended Tools The procedures in this document may require the following tools: • Small flat-blade screwdriver• Phillips screwdriver• Small plastic scribe...

3. optical drive 4. card-reader bay 5. I/O board 6. power-switch board 7. hard drive 8. coin-cell battery 9. VGA card 10. expansion card 11. heatsink module 12. system fan Removing the Cover 1. Follow the procedures in Before Working Inside Your Computer . 2. Follow the steps to remove the cover:a. ...

Installing the Bezel 1. Insert the bezel on the computer aligning it to the placeholders. 2. Press the bezel until the hooks snap in to place. 3. Install the cover . 4. Follow the procedures in After Working Inside Your Computer . Removing the Coin-Cell Battery 1. Follow the procedures in Before Wor...

Installing the Coin-Cell Battery 1. Place the coin-cell battery on the system board until it snaps in place. 2. Install the cover . 3. Follow the procedures in After Working Inside Your Computer . Removing the Hard-Drive Assembly 1. Follow the procedures in Before Working Inside Your Computer . 2. R...

Installing the Hard-Drive Assembly 1. Replace the hard drive into the hard-drive bracket. 2. Install the screws that secure the hard-drive bracket. 3. Install the hard-drive assembly into its slot on the computer. 4. Install the screws that secure the hard-drive assembly to the computer. 5. Connect ...

Installing the Optical Drive 1. Push the optical drive into the optical-drive bay until it snaps into place. 2. Tighten the screws to secure the optical drive to the computer. 3. Connect the data cable and power cable to their connectors on the optical drive. 4. Install the:• bezel • cover 5. Follow...

Installing the Card Reader 1. Slide the card reader into its slot until it snaps into place. 2. Tighten the screws to secure the card reader to the computer. 3. Thread the card reader power cable through the metal clip. 4. Connect the power cable of the card reader to the system board. 5. Install th...

4. Lift the processor to remove it from the computer. Installing the Processor 1. Install the processor into the socket. NOTE: To install the processor correctly in to the socket, align the processor to its position as displayed in the image. 2. Press down the processor to secure it inside the socke...

4. Follow the steps to remove the power supply unit:a. Remove the screws that secure the power supply unit to the computer.b. Push-in on the blue release tab at the base of the power supply unit [1].c. Slide the power supply unit towards the back and remove it from the computer [2]. Installing the P...

• cover • bezel 3. Follow the steps to remove the power switch:a. Disconnect the power-switch cable from the system board [1].b. Un-thread the power-switch cable from the metal-retention clips [2]. 4. Remove the power switch by pressing on the two tabs [1] and pulling it out from the slot. Installin...

Installing the Input/Output (I/O) Panel 1. Slide the I/O panel into its slot on the computer. 2. Tighten the screw to secure the I/O panel to the computer. 3. Route the cables through the metal-rentention clips. 4. Connect the I/O panel and FlyWire cables to their connectors on the system board. 5. ...

Installing the System Board 1. Place the system board into the computer securely until it snaps in place. 2. Tighten the screws to secure the system board to the computer. 3. Thread and connect all the cables to the system board. 4. Install the:• I/O panel • memory • expansion cards • processor • he...

3 Troubleshooting Your Computer You can troubleshoot your computer using indicators like Diagnostic Lights, Beep Codes, and Error Messages during the operation of the computer. Diagnostic Power LED Codes Table 1. Diagnostic power LED codes Power LED Light Status Possible Cause Troubleshooting Steps ...

Diagnostic Error Messages Table 2. Diagnostic error messages Error Messages Description AUXILIARY DEVICE FAILURE The touchpad or external mouse may be faulty. For an external mouse, check the cable connection. Enable the Pointing Device option in the system setup program. BAD COMMAND OR FILE NAME En...

System Error Messages Table 3. System error messages System Message Description Alert! Previous attempts at booting this system have failed at checkpoint [nnnn]. For help in resolving this problem, please note this checkpoint and contact Dell Technical Support The computer failed to complete the boo...

4 System Setup System Setup enables you to manage your computer hardware and specify BIOS ‐ level options. From the System Setup, you can: • Change the NVRAM settings after you add or remove hardware• View the system hardware configuration• Enable or disable integrated devices• Set performance and p...

Auto Power On Time Allows you to select the specific time to enable the Auto Power On mode. Table 8. Security Supervisor Password Specifies whether an administrator password has been assigned. User Password Specifies whether a user password has been assigned. Set Supervisor Password Allows you to ch...

5 Specifications NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information about the configuration of your computer, go to Help and Support in your Windows operating system and select the option to view informatio...

6 Contacting Dell NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, ...