Bernecker + Rainer 5PC820.SX01-00, User Manual

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Software • BIOS options
Automation PC 820 User's Manual V 1.20
1.5.7 I/O interface configuration
High Precision
Event timer The HPET is a timer inside the PC. It is
able to trigger an interrupt with a high
degree of accuracy, which allows other
programs to better synchronize a variety
of applications. Disabled Disables this function.
Enabled Enables this function.
IOAPIC This option is used to activate or
deactivate the APIC (Advanced
Programmable Interrupt Controller).
Information:
The IRQ resources available to the
system are expanded when the APIC
mode is enabled.
Disabled Disables this function.
Enabled The IRQ resources available to the system are
expanded when the APIC mode is enabled.
APIC ACPI SCI IRQ This option is used to modify the SCI IRQ
when in APIC (Advanced Programmable
Interrupt Controller) mode. Disabled IRQ9 is used for SCI.
Enabled IRQ20 is used for SCI.
C4 On C3 Fine-tunes the power saving function on
an ACPI operating system. Disabled
Enabled Processor is needed in C4 if the operating system
is initiated in a C3 state.
Figure 50: 945GME Advanced I/O Interface Configuration
BIOS setting Meaning Setting options Effect
Table 86: 945GME Advanced Chipset setting options
Advanced
I/O Interface Configuration Options
AC97
Disabled
Select Screen
Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
Onboard Audio Controller [AC97]
BIOS SETUP UTILITY
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