Dell T05J 서비스 매뉴얼 - 페이지 36

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NOTE:

For more information about performing a hard reset, search in the Knowledge Base Resource at

support.

Real Time Clock—RTC reset

The Real Time Clock (RTC) reset function allows you or the service technician to recover the recently launched model Dell XPS

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

Troubleshooting