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Parity
A parity bit can be sent along with regular data bits to detect data transmission
errors. Select Even if the parity bit is set to 0, and the number of 1's in data bits
is even. Select Odd if the parity bit is set to 0, and the number of 1's in data bits
is odd. Select None if you do not want to send a parity bit with your data bits
in transmission. Select Mark to add a mark as a parity bit to be sent along with
the data bits. Select Space to add a Space as a parity bit to be sent with your
data bits. The options are None, Even, Odd, Mark and Space.
Stop Bits
A stop bit indicates the end of a serial data packet. Select 1 Stop Bit for standard
serial data communication. Select 2 Stop Bits if slower devices are used. The
options are 1 and 2.
ACPI Setting
Use this feature to confi gure Advanced Confi guration and Power Interface (ACPI)
power management settings for your system.
ACPI Sleep State
Use this feature to select the ACPI State when the system is in sleep mode. Select
S1 (CPU_Stop_Clock) to erase all CPU caches and stop executing instructions.
Power to the CPU(s) and RAM is maintained, but RAM is refreshed. Select Suspend
to use power-reduced mode. Power will only be supplied to limited components
(such as RAMs) to maintain the most critical functions of the system. The options
are S1 (CPU_Stop_Clock), and Suspend Disabled.
NUMA Support
Select Enabled to enable Non-Uniform Memory Access support to improve CPU
performance for a system that has an OS with NUMA support. The options are
Enabled, and Disabled.
RTID
This feature indicates the total number of RTIDs for local and remote poots. The
options are Optimal and Alternate.
7-19
Chapter 7: BIOS
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