- Notes, cautions, and warnings
- Product overview
- Working on your computer
- Removing and installing components
- Technical specifications
- System specifications
- Processor specifications
- Memory specifications
- Hard drive options
- Audio specifications
- Video specifications
- Camera specifications
- Communication specifications
- Ports and connectors specifications
- Display specifications
- Keyboard specifications
- Touchpad specifications
- Battery specifications
- AC adapter specifications
- Physical specifications
- Environmental specifications
- Technology and components
- System setup options
- Boot Sequence
- Navigation keys
- System Setup overview
- Accessing System Setup
- General screen options
- System Configuration screen options
- Video screen options
- Security screen options
- Secure Boot screen options
- Performance screen options
- Power management screen options
- POST behavior screen options
- Wireless screen options
- Maintenance screen options
- System logs screen options
- SupportAssist system resolution
- Real Time Clock (RTC) reset
- Verifying system memory in system setup (BIOS)
- Updating the BIOS in Windows
- System and setup password
- Software
- Troubleshooting
- Contacting Dell
Latitude 3480 Owner's Manual
Real Time Clock (RTC) reset
The Real Time Clock (RTC) reset function allows you or your service technician to recover late model Dell Latitude and Precision systems from select No POST/No Boot/No Power situations.
You can initiate the RTC reset on the system from a power off state and is connected to AC power. Press and hold the power button for twenty-five (25) seconds. The system RTC Reset occurs after you release the power button.
NOTE:If AC power is removed from the system during the process
or the power button is held longer than 40 seconds, the RTC Reset
process is aborted.
Te RTC reset will reset the BIOS to Defaults, un-provision Intel vPro, and reset the system date and time.
The following items are not affected by the RTC reset:
Service Tag
Asset Tag
Ownership Tag
Admin Password
System Password
HDD Password
Key Databases
System Logs
These items may or may not reset based on your custom BIOS setting selections:
The Boot List
Enable Legacy OROMs
Secure Boot Enable
Allow BIOS Downgrade
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