Service Manual
Table Of Contents
- Precision 7670 Service Manual
- Contents
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of Precision 7670
- Base cover
- Battery
- SIM card
- Compression Attached Memory (CAMM) module
- Memory modules
- Memory interposer board
- Solid State Drive
- Secondary M.2 solid-state drive
- Heat sink
- GPU card
- GPU power cable
- Power button board
- Power button
- Speakers
- Inner frame
- SD card reader FPC
- SD card reader
- System board
- Coin-cell battery
- Display assembly
- Power-adapter port
- Smart-card reader
- Keyboard
- Palm rest
- Drivers and downloads
- BIOS setup
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Built-in self-test (BIST)
- System-diagnostic lights
- Recovering the operating system
- Real-Time Clock (RTC Reset)
- Backup media and recovery options
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Getting help and contacting Dell
Steps
1. In the System BIOS or System Setup screen, select System Security and press Enter.
The System Security screen is displayed.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password, update, or delete the existing system password, and press Enter or Tab.
4. Select Setup Password, update, or delete the existing setup password, and press Enter or Tab.
NOTE: If you change the System and/or Setup password, reenter the new password when prompted. If you delete the
System and/or Setup password, confirm the deletion when prompted.
5. Press Esc and a message prompts you to save the changes.
6. Press Y to save the changes and exit from System Setup.
The computer restarts.
Clearing CMOS settings
About this task
CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer.
Steps
1. Remove the base cover.
2. Disconnect the battery cable from the system board.
3. Remove the coin-cell battery.
4. Wait for one minute.
5. Replace the coin-cell battery.
6. Connect the battery cable to the system board.
7. Replace the base cover.
Clearing BIOS (System Setup) and System passwords
About this task
To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell.
NOTE:
For information on how to reset Windows or application passwords, refer to the documentation accompanying
Windows or your application.
BIOS setup 107