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Software • BIOS options
Automation PC 620 with 945GME N270 CPU board User's Manual V 1.10
1.4.6 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.
This function is recommended for multimedia
applications.
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 Disables this function.
Enabled Processor is needed in C4 if the operating system
is initiated in a C3 state.
Figure 127: X945 Advanced I/O Interface Configuration
BIOS setting Meaning Setting options Effect
Table 176: X945 Advanced Chipset setting options
Advanced
I/O Interface Configuration Options
Enabled
OnBoard LAN (ETH1) [Enabled] Disabled
Serial Port1 Configuration [3F8/IRQ4]
Serial Port1 Configuration [2F8/IRQ3]
Serial Port2 Mode [Normal]
Parallel Port Adress [378]
Select Screen
Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
Onboard AC’97 Audio [Enabled]
BIOS SETUP UTILIT Y
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