Acer Aspire T300 Service Manual page 34

Parameter
Boot Up NumLock Status
Gate A20 Option
Typematic Rate Setting
Typematic Rate
Typematic Delay
Security Option
APIC Mode
MPS Version Control for OS
28
Description
Sets the NumLock status when the system is
powered on. Setting to On will turn on the
NumLock key when the system is powered on.
Setting to Off will allows users to use the arrow
keys on the numeric keypad.
This item is to set the Gate A20 status. A20
refers to the first 64KB of extended memory.
When the default value Fast is selected, the
Gate A20 is controlled by port 92 or chipset
specific method resulting in faster system
performance. When Normal is selected, A20 is
controlled by a keyboard controller or chipset
hardware.
This item is used to enable or disable the
typematic rate setting including Typematic Rate
and Typematic Deplay.
After Typematic Rate Setting is enabled, this
item allows you to set the rate (characters/
second) at which at keys are accelerated.
This item allows you to select the delay
between when the key was first pressed and
when the acceleration begins
Specifies the type of BIOS password protection
that is implemented. Setup means that the
password prompt appears only when end users
try to run Setup. System means that a
password prompt appears every time when the
computer is powered on or when end users try
to run Setup.
This field is used to enable or disable the APIC
(Advanced Programmable Interrupt Controller).
Due to compliance with PC2001 design guide,
the system is able to run in APIC mode.
Enabling APIC mode will expand available IRQ
resources from the system.
This field allows you to select which MPS (Multi-
Processor Specification) version to be used for
the operating system. You need to select the
MPS version supported by your operating
system. To find out which version to use,
consult the vendor of your operating system.
Options
On
Off
Fast
Normal
Enabled
Disabled
Settings: 6,8,10,12,15,20,24 and 30.
Settings: 250, 500, 750 and 1000.
Setup
System
Enabled
Disabled
1.4
1.1
Chapter 2