Acer Aspire 2000 Service Guide

							Chapter 135
 
Switch Power, Lid, Application/Button Lock/CD-Play, Eject/Stop Button, Play/Pause 
Button, Reverse Button, Forward Button, Volume Down Button, volume up 
button
Memory Address Map
Memory AddressSizeFunction
00100000h-000F0000h 64KB System BIOS
000CD000h-000C0000h VGA BIOS
000C0000h-000A0000h 128 KB Video memory (VRAM)
000A0000h-00000000h 640KB Conventional memory
I/O Address Map
I/O AddressFunction
000-00F DMA controller-1
020-021 Interrupt controller-1
040-043 Timer 1
060, 064 Keyboard controller 38859 chip select
061 System speaker out
040B DMA controller-1
061 System speaker
070-071 Real-time clock and NMI mask
080-08F DMA page register
0A0-0A1 Interrupt controller-2
0C0-0DF DMA controller-2
0F0-0FF Numeric data processor
170-177 2nd EIDE device (CD-ROM) select
1F0-1F7 1st EIDE device (hard drive) select
220-22F Audio 
240-24F Audio (optional)
278-27F Parallel port 3
378,37A Paraller port 1
3B0-3BB
3C0-3DFVideo Controller 
3F0h-3F7 Standard Floppy Disk Controller
3F0-3F7 Floppy disk controller
480-48F, 4D6  DMA controller-1
4D0-4D1
CF8-CFFPCI configuration register
IRQ Assignment Map
Interrupt ChannelFunction(Hardware)
IRQ00 System timer
IRQ01 Keyboard
IRQ02 Programmable Interrup Controller
IRQ03 Free
IRQ04 Infrared Communications Controller
Mechanical Specification
ItemSpecification 
						

							36Chapter 1
IRQ05 CardBus Controller
IRQ06 Standard Floppy Disk Controller
IRQ07 Printer Port (LPT1) 
IRQ08 Real Time Clock
IRQ09 SCI IRQ used by ACPI bus
IRQ10 Free
IRQ11 Audio Controller, SMBus Controller, Carbus Controller, Intel Network 
Connection and Modem
IRQ12 PS/2 Mouse
IRQ13 Numeric data processor
IRQ14 Ultra ATA storage Controller
Primary IDE controller
IRQ15 Ultra ATA storage Controller
Secondary IDE channel (CD-ROM drive)
DMA Channel Assignment
DMA ChannelFunction(Hardware)
00 Free
01 SMC IrCC
02 Standard Floppy Disk Controller
03 Free
04 DMA controller
IRQ Assignment Map
Interrupt ChannelFunction(Hardware) 
						

							Chapter 237
BIOS Setup Utility
The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/
Output System).
Your computer is already properly configured and optimized, and you do not need to run this utility. However, 
if you encounter configuration problems, you may need to run Setup.  Please also refer to Chapter 4 
Troubleshooting when problem arises.
To activate the BIOS Utility, press 
m during POST (when “Press  to enter Setup” message is prompted 
on the bottom of screen).
Navigating the BIOS Utility
There are six menu options:  Main, Advanced , Security, Others, Boot and Exit.
Follow these instructions:
!To choose a menu, use the cursor left/right keys (zx).
!To choose a parameter, use the cursor up/down keys ( wy).
!To change the value of a parameter, press p or q.
!A plus sign (+) indicates the item has sub-items. Press e to expand this item.
!Press ^ while you are in any of the menu options to go to the Exit menu.
!In any menu, you can load default settings by pressing t. You can also press u to save any 
changes made and exit the BIOS Setup Utility.
NOTE: You can change the value of a parameter if it is enclosed in square brackets. Navigation keys for a 
particular menu are shown on the bottom of the screen. Help for parameters are found in the Item 
Specific Help part of the screen. Read this carefully when making changes to parameter values.
System Utilities
Chapter  2 
						

							38Chapter 2
Main
The Main screen displays a summary of your computer hardware information, and also includes basic setup 
parameters.
NOTE: The screen above is for reference only. Actual values may differ.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings..
ParameterDescriptionFormat/Options
System Time Sets the system time. Format: HH:MM:SS 
(hour:minute:second)System 
Time. 
System Date Sets the system date. Format MM/DD/YYYY (month/
day/year)
System Date
Floppy Drive Shows floppy drive type information. 1.44MB, 3 1/2: If there exists 
floppy drive.
Not installed: If there is no floppy 
drive.
Hard Disk Shows the hard disk information with the 
manufacturer and model name..
Quiet Boot Determines the way the system boots 
up.Shows the high-capacity disc drive 
installed.Options: Enabled or Disabled
Power on display Determines the display device on startup. Options: Auto-Selected or 
Simultaneous
LCD Display stretch Specifies whether or not to expand the 
image to fill the screenOptions: Enabled or Disabled
System Memory Reports  the memory size of system base 
memory. The size is fixed to 640KB.. 
						

							Chapter 239
The items in this screen are important and vital information about your computer.  If you experience computer 
problems and need to contact technical support, this data helps our service personnel know more about your 
computer. Extended Memory Reports the memory size of the extended 
memory with an integer in the system and 
32 Bit SMI will occupy 0.5MB.
Note: Extended memory size= Total 
memory size-1MB-0.5M.
BIOS Ver.Product Name Shows the system BIOS version.
ParameterDescriptionFormat/Options 
						

							40Chapter 2
Advanced
The Advanced screen contains parameters involving your hardware devices.
The table below describes the parameters in the screen Settings in boldface are the default and suggested 
parameter settings.                                    
ParameterDescriptionOptions
IDE Controller Configures the integrated local bus IDE 
adapter.Both: Enables CD-ROM and 
Hard Drive.
Primary: Enables Hard Drive 
only
Disabled: Disables the 
integrated local bus IDE 
adapter using options. 
Note: Depending on your 
operating system, disabling an 
unused device may help free 
system resources for other 
devices.
FDD controller Enables or disables the floppy disk controller.Enabled or Disabled
Infrared Port (FIR) Enables or disables the system’s Infrared port.Enabled or Disabled
Base I/O address Sets the I/O address and IRQ for Infrared port.3F8, IRQ4/2F8, IRQ3/ 3E8, 
IRQ4/2E8, IRQ3
DMA Channel Sets a DMA channel for Infrared port. This 
field is hidden if Mode is not FIR.DMA3 or DMA1 
						

							Chapter 241
Parallel Port Enables or disables the parallel port.Enabled or Disabled
Note: Depending on your 
operating system, disabling an 
unused device may help free 
system resources for other 
devices.
Mode Sets the operation mode of the parallel port.ECP, EPP, Bi-directional or 
Normal
Base I/O address Sets the I/O address for the parallel port.378/278/3BC
Note: When Mode is selected 
as EPP mode,“3BC” will not be 
available.
Interrupt Set the interrupt for the parallel port.IRQ7or IRQ5
DMA channel Set the DMA channel for the paralle port.DMA1/DMA0/DMA3
Note: This field is hdden if 
Mode is not ECP.
Legacy USB Support Eeable or disable support for Legacy 
Universal Serial Bus.Enabled or Disabled
ParameterDescriptionOptions 
						

							42Chapter 2
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
NOTE: When you are prompted to enter a password, you have three tries before the system halts. Don’t forget 
your password. If you forget your password, you may have to return your notebook computer to your 
dealer to reset it.
Setting a Password
Follow these steps:
ParameterDescriptionOption
User Password/
Supervisor PasswordShows the setting of the user password./
supervisor password.Clear or Set
Set User Password Press Enter to set the user password. 
When set, this password protects the 
BIOS Setup Utility from unauthorized 
access.
Set Supervisor Password Press Enter to set the Supervisor 
password. When set, this password 
controls access to the setup utility.
Password on boot Allows the user to specify whether or not 
a password is required to boot.When 
enabled, the user password protects the 
computer from unauthorized access 
during boot up.Disabled or Enabled 
						

							Chapter 243
1.Use the w andy keys to highlight the Set User Password/Set Supervisor Password parameter and press 
the e key. The Set User Password/Set Supervisor Password box appears:
2.Type a password in the Enter new password field. The password may consist of up to eight alphanumeric 
characters (A-Z, a-z, 0-9). Retype the password in the Confirm new password field.
3.If there is an old password then setup will prompt with the following window instead and a current 
password will be required to be entered at first.
IMPORTANT:Be very careful when typing your password because the characters do not appear on the 
screen.
4.User can type password in field of enter new password, and re-enter password in field of “confirm new 
password” for verification.
          If verification OK, the supervisor password is set complete after user press enter. User can see the 
following message.
          
         If verification fail, then user will see the following message.
5.Press e. After setting the password, the computer sets the User Password/Supervisor Password 
parameter to “Set”.
6.If desired, you can opt to enable the Password on boot parameter.
7.When you are done, press u to save the changes and exit the BIOS Setup Utility.
     Set SuperVisor Password
Enter New Password         [                           ]
Confirm New Password    [                           ]
Set Supervisor Password
Enter current password     [                           ]
Enter New Password     [                           ]
Confirm New Password    [                           ]
Setup Notice
Changes have been saved.
[Continue]
Setup Warning
Password does not match
Re-enter Password
[Continue] 
						

							44Chapter 2
Removing a Password
Follow these steps:
1.Use the w and y keys to highlight the Set User Password parameter and press the e key. The Set 
Password box appears:
2.Type the current password in the Enter Current Password field and press e.
3.Press e twice without typing anything in the Enter New Password and Confirm New Password fields. 
The computer then sets the User Password parameter to “Clear”.
4.When you have changed the settings, press u to save the changes and exit the BIOS Setup Utility.
Changing a Password
1.Use the w and y keys to highlight the Set User Password parameter and press the e key. The Set 
Password box appears:
2.Type the current password in the Enter Current Password field and press e.
3.Type a password in the Enter New Password field. Retype the password in the Confirm New Password 
field.
4.Press e. After setting the password, the computer sets the User Password parameter to “Set”.
5.If desired, you can enable the Password on boot parameter.
6.When you are done, press u to save the changes and exit the BIOS Setup Utility.
Set Password
Enter Current Password
Enter New Password
Confirm New Password[                             ]
[                             ]
[                             ]
Set Password
Enter Current Password
Enter New Password
Confirm New Password[                             ]
[                             ]
[                             ]