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ACPI Settings
High Precision Event Timer
Select Enabled to activate the High Performance 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.
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.
Trusted Computing Configuration
Security Device Support
If this feature and the TPM jumper on the motherboard are both set to Enabled, onbaord
security devices will be enabled for TPM (Trusted Platform Module) support to enhance data
integrity and network security. Please reboot the system for a change on this setting to take
effect. The options are Disabled and Enabled.
*If the item above set to Enabled, the following items will become available for user's
configuration:
The following Platform Configuration Register information will display:
Active PCR banks
Available PCR banks
SHA-1 PCR Bank
Use this item to disable or enable the SHA-1 Platform Configuration Register (PCR) bank for
the installed TPM device. The options are Disabled and Enabled.
SHA256 PCR Bank
Use this item to disable or enable the SHA256 Platform Configuration Register (PCR) bank
for the installed TPM device. The options are Disabled and Enabled.
TPM State
This feature changes the TPM State. The options are Disabled and Enabled. Note: The
system will restart to change the TPM State.
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Chapter 6: BIOS
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