Owner`s manual
Table Of Contents
- Dell Precision Tower 7910 Owner's Manual
- Working on Your Computer
- Removing and Installing Components
- Recommended Tools
- System Overview
- Removing the Power Supply Unit (PSU)
- Installing the Power Supply Unit (PSU)
- Removing the Front Cover
- Installing the Front Cover
- Removing the Hard Drive
- Installing the Hard Drive
- Removing the Left Cover
- Installing the Left Cover
- Removing the Intrusion Switch
- Installing the Intrusion Switch
- Removing the PCI Card
- Installing the PCI Card
- Removing the Slimline Optical Drive
- Installing the Slimline Optical Drive
- Removing the Memory Shroud
- Installing the Memory Shroud
- Removing the Memory
- Installing the Memory
- Removing the Coin-Cell Battery
- Installing the Coin-Cell Battery
- Removing the Heatsink
- Installing the Heatsink
- Removing the Liquid Cooler Heatsink (Optional)
- Installing the Liquid Cooler Heatsink (Optional)
- Removing the HeatSink Fan
- Installing the Heatsink Fan
- Removing the PCIe Card Retention
- Installing the PCIe card retention
- Removing the System-Fan Assembly
- Installing the System-Fan Assembly
- Removing the Front Bezel
- Installing the Front Bezel
- Removing the I/O Panel and the USB 3.0 Ports
- Installing the I/O Panel and the USB 3.0 Ports
- Removing the Power Switch
- Installing the Power Switch
- Removing the Speaker
- Installing the Speaker
- Removing the Right Cover
- Installing the Right Cover
- Removing the 5.25-inch Optical Drive
- Installing the 5.25-inch Optical Drive
- Removing the HDD Thermal Sensor
- Installing the HDD Thermal Sensor
- Removing the Processor
- Installing the Processor
- Removing the Hard-Drive Fan
- Installing the Hard-Drive Fan
- Removing the Power Supply Unit (PSU) Card
- Installing the Power Supply Unit (PSU) Card
- System Board Components
- Removing the System Board
- Installing the System Board
- Additional Information
- System Setup
- Diagnostics
- Troubleshooting Your Computer
- Technical Specifications
- Contacting Dell
NOTE: If you change the System and/or Setup password, re-enter the new password when
promoted. If you delete the System and/or Setup password, confirm the deletion when
promoted.
5. Press <Esc> and a message prompts you to save the changes.
6. Press <Y> to save the changes and exit from the System Setup.
The computer reboots.
Disabling a System Password
The system's software security features include a system password and a setup password. The password
jumper disables any password(s) currently in use. There are 2–pins for the PSWD jumper.
NOTE: The password jumper is disabled by default.
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Identify the PSWD jumper on the system board. For identifying the PSWD jumper on the system
board, see the System Board Components.
4. Remove the PSWD jumper from the system board.
NOTE: The existing passwords are not disabled (erased) until the computer boots without the
jumper.
5. Install the cover.
NOTE: If you assign a new system and/or setup password with the PSWD jumper installed, the
system disables the new password(s) the next time it boots.
6. Connect the computer to the electrical outlet and power-on the computer.
7. Power-off the computer and disconnect the power cable from the electrical outlet.
8. Remove the cover.
9. Replace the jumper on the pins.
10. Install the cover.
11. Follow the procedures in After Working Inside Your Computer.
12. Power-on the computer.
13. Go to the system setup, and assign a new system or setup password.
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