Dell Inspiron 3480, Service Manual, Page: 130 / 138

Security
Password Bypass Bypass the System (Boot) Password and the internal HDD password prompts during
a system restart.
Password Change Enable or disable changes to the System and Hard Disk passwords when an
administrator password is set.
Non-Admin Setup Changes Determines whether changes to the setup option are permitted when an
administrator password is set.
UEFI Capsule Firmware Updates Enable or disable BIOS updates through UEFI capsule update packages.
PTT Security Enable or disable Platform Trust Technology (PTT) visibility to the operating system.
Computrace(R) Enable or disable the BIOS module interface of the optional Computrace(R) Service
from Absolute Software.
Admin Setup Lockout Enable to prevent users from entering Setup when an Admin Password is set.
Master Password Lockout Disables the master password support. Hard Disk passwords need to be cleared
before changing the setting.
SMM Security Mitigation Enable or disable the SMM Security Mitigation.
Table 7. System setup options—Secure Boot menu
Secure Boot
Secure Boot Enable Enable or disable the secure boot feature.
Secure Boot Mode Modifies the behavior of Secure Boot to allow evaluation or enforcement of UEFI
driver signatures.
Expert Key Management
Expert Key Management Enable or disable Expert Key Management.
Custom Mode Key Management Select the custom values for expert key management.
Table 8. System setup options—Intel Software Guard Extensions menu
Intel Software Guard Extensions
Intel SGX Enable Enable or disable Intel Software Guard Extensions.
Enclave Memory Size Set the Intel Software Guard Extensions Enclave Reserve Memory Size.
Performance
Multi Core Support Enable multiple cores.
Default: Enabled.
Intel SpeedStep Enable or disable Intel Speedstep Technology.
Default: Enabled.
NOTE: If enabled, the processor clock speed and core voltage are adjusted
dynamically based on the processor load.
C-States Control Enable or disable additional processor sleep states.
Default: Enabled.
Intel TurboBoost Enable or disable Intel TurboBoost mode of the processor.
Default: Enabled.
HyperThread control Enable or disable HyperThreading in the processor.
130 System setup