Acrosser AR-B1550 User Manual

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AR-B1550 User’s Guide

Quick Power On Self Test

This option speeds up Power On Self Test (POST) after you power on the computer. If it is set to Enable, BIOS
will shorten or skip some items’ checks during POST.

Boot Sequence

The option determines which drive computer searches first for the disk operating system.

Boot Up NumLock Status

This item is used to activate the NumLock function upon system boot. If the setting is on, after a boot, the
NumLock light is lit, and the user can use the number keys.

Boot Up System Speed

This item is used to choose the boot-up speed of system. The choices provided are and .

Gate A20 Option

This item is chosen as , the A20 signal is controlled by a keyboard controller or chipset hardware. The
selection is “Fast” means the A20 signal is controlled by Port 92 or a chipset specific method.

Memory Parity Check

An approach that generates and checks parity on each memory transfer and provides an interrupt if an error is
found. This item is to or

this

function.

Typematic Rate Setting

To enable typematic rate and typematic delay programming. If you disable the typematic rate and typematic delay
programming, the system BIOS will use the default value of these 2 items and the default is controlled by the
keyboard.

Typematic Rate (Chars/Sec)

Typematic Rate sets the rate at which characters on the screen repeat when a key is pressed and held down. The
settings are 6, 8, 10, 12, 15, 20, 24, or 30 characters per second.

Typematic Delay (Msec)

The number selected indicates the time period between two identical characters appearing on screen.

Security Option

The option allows the user to limit access to the System and Setup, or just to Setup.

System

The system will not boot and access to Setup will de 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.

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 , it will disable security. Once the security
is disabled, the system will boot and you can enter Setup freely.

PCI/VGA Palette Snoop

This option must be set to Enabled if any ISA adapter card installed in the computer requires VGA palette snooping.

Video BIOS Shadow

ROM Shadow copies Video BIOS code from slower ROM to faster RAM. Video BIOS can then execute from RAM.
This makes your system faster.

Cyrix 6x86/MII CPUID

The option is to determine whether or not to use the function of controlling or accessing the Cyrix 6x86/MII CPUID.