Chapter 5: UEFI BIOS
73
Data Bits
Parity
Stop Bits
ACPI Settings
Use this feature to configure Advanced Configuration and Power Interface (ACPI) power
management settings for your system.
Headless Support
Enable this feature for the system to function without a keyboard, monitor, or mouse attached.
The options are
Disabled
and Enabled.
WHEA Support
Select Enabled to support the Windows Hardware Error Architecture (WHEA) platform and
provide a common infrastructure for the system to handle hardware errors within the Windows
OS environment to reduce system crashes and to enhance system recovery and health
monitoring. The options are Disabled and
Enabled
.
High Precision Event Timer
Select Enabled to activate the High Precision Event Timer (HPET) that produces periodic
interrupts at a much higher frequency than a Real-time Clock (RTC) does in synchronizing
multimedia streams, providing smooth playback and reducing the dependency on other
timestamp calculation devices, such as an x86 RDTSC Instruction embedded in the CPU.
The High Performance Event Timer is used to replace the 8254 Programmable Interval Timer.
The options are Disabled and
Enabled
.
Trusted Computing
*The features in the Trusted Computing section on this page are displayed if a TPM
1.2 module is detected:
Configuration
Security Device Support
If this feature and the TPM jumper on the motherboard are both set to Enabled, onboard
security devices will be enabled for TPM support to enhance data integrity and network
security. Please reboot the system for a change on this setting to take effect. The options
are Disable and
Enable
.