Chapter 6: BIOS
101
Bits Per Second
T
his feature sets the transmission speed for a serial port used in Console Redirection.
Make sure that the same speed is used in both 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 feature to set the flow control for Console Redirection to prevent data loss caused
by buffer overflow. Send a "Stop" signal to stop data-sending when the receiving buffer
is full. Send a "Start" signal to start data-sending when the receiving buffer is empty. The
options are
None
, Hardware RTS/CTS and Software Xon/Xoff.
•
Data Bits: 8
•
Parity: None
•
Stop Bits: 1
ACPI Settings
Use this feature to configure Advanced Configuration and Power Interface (ACPI) power
management settings for your system.
NUMA Support (Available when the OS supports this feature)
Select Enabled to enable Non-Uniform Memory Access support to enhance system
performance. The options are Disabled and
Enabled
.
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 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
.
