Chapter 4: BIOS
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Out-of-Band Management Port
The feature selects a serial port in a client server to be used by the Microsoft Windows
Emergency Management Services (EMS) to communicate with a remote host server. The
options are
COM1,
COM2, COM3, and AMT SOL.
Terminal Type
Use this feature to select the target terminal emulation type for Console Redirection. Select
VT100 to use the ASCII character set. Select VT100+ to add color and function key support.
Select ANSI to use the extended ASCII character set. Select VT-UTF8 to use UTF8 encoding
to map Unicode characters into one or more bytes. The options are ANSI, VT100, VT100+,
and
VT-UTF8
.
Bits Per Second
This item sets the transmission speed for a serial port used in Console Redirection. Make
sure that the same speed is used in the host computer and the client computer. A lower
transmission speed may be required for long and busy lines. The options are 9600, 19200,
57600, and
115200
(bits per second).
Flow Control
Use this item to set the flow control for Console Redirection to prevent data loss caused by
buffer overflow. Send a "Stop" signal to stop sending data when the receiving buffer is full.
Send a "Start" signal to start sending data when the receiving buffer is empty. The options
are
None,
Hardware RTS/CTS, and Software Xon/Xoff.
Data Bits
Parity
Stop Bits
ACPI Settings
ACPI Sleep State
This feature selects the ACPI Sleep State that the system will enter into when the suspend
button is activated. The options are Suspend Disabled and
S3 (Suspend to RAM)
.
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
.
