User's Manual (1.0c)
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X9SRi/X9SRE Motherboard Series User’s Manual
Bits per Second (BPS): 9600, 19200, 57600, or 115200
Flow Control: None, Hardware RTS/CTS, Software Xon/Xoff
Data Bits: 8 or 7
Parity: None, Even, Odd, Mark, or Space
Stop Bits: 1 or 2
ACPI Settings
Use this feature to congure Advanced Conguration and Power Interface (ACPI)
power management settings for your system.
ACPI Sleep State
This setting allows you to congure the ACPI (Advanced Conguration and Power
Interface) sleep state for your system when it is in the Suspend mode. The options
are Suspend Disabled, S1 (CPU Stop Clock).
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 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.
ME Subsystem
This item displays the ME Subsystem information.