Kontron ETX-LX2, Manual

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11 Appendix C: BIOS Operation
Kontron User's Guide ETX®-LX2 39
Feature Option Description
screen and sound an alarm beep.
> Enabled: Activates automatically when the system boots up and causes a
warning message to appear when anything attempts to access the boot
sector or hard disk partition table.
> Disabled: No warning message will appear when anything attempts to
access the boot sector or hard disk partition table.
CPU Internal Cache
Disabled
Enabled
Enables or disables the internal CPU Cache
Darkboot/Custom Logo
Disabled
Enabled
Enables or disables the Darkboot Logo
Gate A20 Option
Normal
Fast
Select if the chipset or the keyboard controller should control GateA20.
> Normal: A pin in the keyboard controller controls GateA20
> Fast: Lets the chipset control GateA20
SERIRQ Mode
Quiet
Continuous
Select mode of the Serial IRQ Protocol
FPU Imprecise
Exceptions Disabled
Enabled
Select the FPU Mode. If enabled, the FPU runs in Turbo mode but does not
generate FPU exceptions. If disabled, the FPU runs in slower, but precise
mode and FPU exceptions will be generated.
Usercode Feature
Disabled
Enabled
Enables or disables scan for usercode
External NMI Feature
Disabled
Enabled
Enables external NMI over IOCHCK#
Security Option
Setup
System
Select whether a password is required every time the system boots or only
when you enter setup.
> System: The system will not boot and access to Setup will be denied if
the correct password is not entered at the prompt.
> Setup: The system will boot, but access to Setup will be denied if the
correct password is not entered at the prompt.
PS/2 Mouse Control
Disabled
Enabled
Auto
> Disabled: prevents any installed mouse from functioning but frees up
IRQ12
> Enabled: Mouse function installed regardless if mouse is connected or
not
> Auto: Allows the operating system to determine whether to enable or
disable the mouse
Video BIOS Shadow
Disabled
Enabled
Enabled copies Video BIOS to shadow RAM (improves performance)
C8000-CBFFF Shadow
CC000-CFFFF Shadow
D0000-D3FFF Shadow
D4000-D7FFF Shadow
D8000-DBFFF Shadow
DC000-DFFFF Shadow
Disabled
Enabled