Chapter 4: BIOS
103
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 motherboard supports TPM 2.0. The following Trusted Platform Module (TPM) information
is displayed if a TPM 2.0 module is detected:
• Vendor Name
• Firmware Version
Security Device Support
If this feature and the TPM jumper on the motherboard are both set to Enabled, onboard
security devices are 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
eect. The options are Disable and Enable.
• Active PCR Bank
• Available PCR banks
SHA-1 PCR Bank
Use this feature to disable or enable the SHA-1 Platform Conguration Register (PCR) bank
for the installed TPM device. The options are Disabled and Enabled.
SHA256 PCR Bank
Use this feature to disable or enable the SHA256 Platform Conguration Register (PCR) bank
for the installed TPM device. The options are Disabled and Enabled.
Pending Operation
Use this feature to schedule a TPM-related operation to be performed by a security device
for system data integrity. Your system will reboot to carry out a pending TPM operation. The
options are None and TPM Clear.
Platform Hierarchy
Use this feature to disable or enable platform hierarchy for platform protection. The options
are Disabled and Enabled.
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