MSI MS-6104 User Manual page 40

Chapter 3 AWARD BIOS USER'S GUIDE
Security Option
This category allows you to limit access to the system and
Setup, or just to Setup.
System
Setup
(default)
Note: To disable security, select PASSWORD SETTING at Main Menu
and then you will be asked to enter password. Do not type anything
and just press <Enter>, it will disable security. Once the security is
disabled, the system will boot and you can enter Setup freely.
PCI VGA Palette Snooping
Choose Disabled or Enabled. Some graphic controllers which
are not VGA compatible, take the output from a VGA controller
and map it to their display as a way to provide the boot
information and the VGA compatibility.
However, the color information coming from the VGA
controller is drawn from the palette table inside the VGA
controller to generate the proper colors, and the graphic
controller needs to know what is in the palette of the VGA
controller. To do this, the non-VGA graphic controller watches
for the Write access to the VGA palette and registers the snoop
data. In PCI based systems, where the VGA controller is on the
PCI bus and a non-VGA graphic controller is on an ISA bus, the
Write Access to the palette will not show up on the ISA bus if
the PCI VGA controller responds to the Writes.
The system will not boot and access to Setup will
be denied if the correct password is not entered at
the prompt.
The system will boot, but access to Setup will be
denied if the correct password is not entered at
the prompt.
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