Acer Aspire 1520 Service Guide

Chapter 232
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...

33Chapter 2
Navigating the BIOS Utility
There are six menu options: Info., Main, System Devices, Security, Boot, and Exit.
Follow these instructions:
TTo choose a menu, use the cursor left/right keys (zx).
TTo choose a parameter, use the cursor up/down keys ( wy).
TTo change the value of a parameter, press por q.
TA plus sign (+) indicates the item has sub-items. Press e to expand this item.
TPress ^ while you are in any of the menu options to go to the Exit menu.
TIn any menu, you can load default...

Chapter 234
Information
NOTE: The system information is subject to different models.
ParameterDescription
CPU Type Displays the CPU type information.
CPU Speed Displays the CPU speed.
HDD Model Name HDD device model name information will be retrieved automatically during system boot.
HDD Serial Number HDD device serial number information will be retrieved automatically during system boot.
ATAPI Model Name Display the ATAPI device model name.
ATAPI Serial Number Display the ATAPI device serial number...

35Chapter 2
Main
The Main screen displays a summary of your computer hardware information, and also includes basic setup 
parameters. It allows the user to specify standard IBM PC AT system parameters.
NOTE: The screen above is for reference only. Actual values may differ.
PhoenixBIOS Setup Utility 
           Info.      
Main      Advanced       Security       Boot       Exit 
 
  
Item Specific Help 
System Time: [15:56:48] 
System Date: [08/23/2004] 
  
System Memory:  640 KB 
Extended Memory:  446MB...

Chapter 236
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
NOTE: The sub-items under each device will not be shown if the device control is set to disable or auto. This is 
because the user is not allowed to control the settings in these cases.
ParameterDescriptionFormat/Option
System Time Sets the system time. The hours are displayed 
with 24-hour format.Format: HH:MM:SS 
(hour:minute:second) System Time
System Date Sets...

37Chapter 2
Advanced
The Advanced menu screen contains parameters involving your hardware devices. It also provides advanced 
settings of the system.
The table below describes the parameters in the screen. Settings in boldface are the default and suggested 
parameter settings.
 .
ParameterDescriptionOptions
Infrared Port Enables, disables or auto detects the infrared port.
Enabled/Disabled/Auto
Base I/O address Sets the I/O address of the infrared port.
2F8/3F8/3E8/2E8
Interrupt Sets the interrupt...

Chapter 238
DMA channel Sets a DMA channel for the printer to operate in 
ECP mode. This parameter is enabled only if Mode 
is set to ECP.DMA3/DMA1
Legacy USB Support Enables, disables USB interface devices support. 
(Enable for use with a non-USB aware Operating 
System such as DOS or UNIX).Option: 
Disabled or Enabled
ParameterDescriptionOptions 

39Chapter 2
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use.
PhoenixBIOS Setup Utility 
           Info.       Main       Advanced        Boot 
 
Item Specific Help 
User Password is : Clear 
Supervisor Password is : Clear
[Enter]Set Supervisor Password
  
Password on Boot 
[Disabled]
 
  
 
Supervisor Password 
controls accesses of the 
whole setup utility. 
It can be used to 
boot up when Password 
on boot is enabled. 
 
F1  Help...

Chapter 240
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 as you set the user or the supervisor password:
1.Use the w andy keys to highlight the Set Supervisor...

41Chapter 2
Removing a Password
Follow these steps:
1.Use the w and y keys to highlight the Set Supervisor 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 Supervisor Password parameter to “Clear”.
4.When you have changed the settings, press u to save the changes and exit the BIOS...