Chapter 4: BIOS
123
ACPI Settings
System ACPI Parameters
Use this feature to configure Advanced Configuration and Power Interface (ACPI) power
management settings and parameters for your system.
NUMA
Select Enabled to enable Non-Uniform Memory Access support to enhance system
performance. The options are
Disabled and
Enabled
.
UMA (Uniform Memory Access)-Based Clustering (Available when SNC is Disabled)
When the option is set to Hemisphere, UMA-based clustering will support 2-cluster
configuration for system performance enhancement. The options are
Disable (All2All) and
Hemisphere (2-Clusters)
.
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
.
