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X9SCi-LN4/X9SCi-LN4F/X9SCA/X9SCA-F User Manual
ACPI Configuration
Use this feature to configure Advanced Configuration and Power Interface (ACPI)
power management settings for your system.
High Precision Event Timers
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 de-
pendency on other timestamp calculation devices, such as an x86 RDTSC Instruc-
tion embedded in the CPU. The High Performance Event Timer is used to replace
the 8254 Programmable Interval Timer. The options are Enabled and Disabled.
Suspend Mode
This setting allows you to configure the ACPI (Advanced Configuration and Power
Interface) sleep state for your system when it is in the Suspend mode. The options
are Suspend Disabled, S1 (POS), and S3 (STR). S3 (STR) is the deepest sleep
state in these options.
NUMA Support
This feature Enables the Non-Uniform Memory Access ACPI support. The options
are Enabled and Disabled.
WHEA Support
This feature Enables the Windows Hardware Error Architecture (WHEA) support
for the Windows 2008 operating system (and later versions). The options are
Enabled and Disabled.
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Event Logs
Smbios Event Log
Change this item to enable or disable all features of the Smbios Event Logging
during boot. The options are Enabled and Disabled.
Erase Event Log
This option erases all logged events. The options are No, Yes, Next reset and
Yes, Every reset.
When Log is Full
This option automatically clears the Event Log memory of all messages when it is
full. The options are Do Nothing and Erase Immediately.
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