The Real Time Clock (RTC) reset function
allows you or the service technician to recover the recently
launched model Dell Latitude and Precision systems from No POST/No Boot/No Power situations. You can initiate the RTC reset on the system from a power-off state only if it is connected to AC power. Press and hold the power button for 25 seconds. The system RTC reset occurs after you release the power button.
NOTE: If AC power is disconnected from the system during the process or the power button is held longer than 40 seconds, the RTC reset process gets aborted.
The RTC reset will reset the BIOS to Defaults, un-provision
Intel vPro and reset the system date and time. The following items
are unaffected by the RTC reset:
Service
Tag
Asset
Tag
Ownership
Tag
Admin
Password
System
Password
HDD
Password
Key
Databases
System
Logs
NOTE: The IT administrator's vPro account and password on the system will be un-provisioned. The system needs to go through the setup and configuration process again to reconnect it to the vPro server.
The below items may or may not reset based on your custom BIOS
setting selections:
Boot List
Enable Legacy Option ROMs
Secure Boot Enable
Allow BIOS Downgrade
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