Chapter 2:BIOS Configuration
Set this value to allow the ACPI BIOS to add a pointer to an OEMB table in the Root System Description Table
(RSDT) table.
Disabled
This option disables adding an OEMB table.
Enabled
This option enables adding an OEMB table. This is the default setting.
Note:
OEMB table is used to pass POST data to the AML code during ACPI O/S operations.
RSDT
RSDT is the main ACPI table. It has no fixed place in memory. During the boot up process, the BIOS locates a
pointer to the table during the memory scan. A Root System Descriptor Pointer (RSDP) is located in low memory
space of the system. It provides the physical address of the RSDT. The RSDT itself is identified in memory because
it starts with the signature "RSDT." Following the signature is an array of pointers that tell the operating system the
location of other description tables that provide it with the information it needs about the standards defined on the
current system and individual devices.
AML
ACPI Machine Language (AML) is a binary code format that the operating system's ACPI AML interpreter parses
to discover the machine's properties. On boot up the BIOS startup code copies it into system memory, where it can
be interpreted by the operating system’s ACPI AML interpreter.
Headless Mode
This option is used to update the ACPI FACP table to indicate headless operations.
Disabled
This option disables updating the ACPI FACP table to indicate headless operation. This is the default setting.
Enabled
This option enables updating the ACPI FACP table to indicate headless operation.
Chipset ACPI Configuration
You can use this screen to select options for the Chipset ACPI Configuration Settings. Use the up and down
<Arrow> keys to select an item. Use the <Plus> and <Minus> keys to change the value of the selected option. A
description of the selected item appears on the right side of the screen.
Energy Lake Feature
The Optimal and Fail-Safe default setting is
Disabled
.
APIC ACPI SCI IRQ
The Optimal and Fail-Safe default setting is
Disabled
.
EVENT LOG CONFIGURATION SCREEN
MPS CONFIGURATION SCREEN
PCI EXPRESS CONFIGURATION SCREEN
SMBIOS CONFIGURATION SCREEN
USB CONFIGURATION SCREEN
PCI/PnP Setup
Select the
PCI/PnP
tab from the ezPORT setup screen to enter the Plug and Play BIOS Setup screen. You can
display a Plug and Play BIOS Setup option by highlighting it using the <Arrow> keys.
Clear NVRAM
Set this value to allow the system to clear the NVRAM. The Optimal and Fail-Safe default setting is
No.
Plug and Play O/S
Set this value to allow the system to modify the settings for Plug and Play operating system support. The Optimal
and Fail-Safe default setting is
Yes
.
No
The
No
setting is for operating systems that do not meet the Plug and Play specifications. It allows the BIOS to
configure all the devices in the system.
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Summary of Contents for MicroATX Express
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