Acer Aspire 5538 Service Guide

Chapter 121
Wireless LAN  
Interface
Optical aperture
Focusing range
Dimensions (L x W x H 
mm)
Sensor type
Pixel resolution
Pixel size
Image size
ItemSpecificationSpecificationSpecification
Type Foxconn 
FOX_ATH_XB63 
Foxconn Atheros XB63 
minicard b/gFoxconn Wireless LAN 
Atheros AR5B91 1x2 
BGNFoxconn Wireless LAN 
Wireless LAN Ralink 
RT2700E 1x2 BGN
802.11g 
Radio Technology 
Operating 
Frequency 
Modulation 
Schemes 
Channel Numbers  •
Data Rate 
Media Access 
Protocol 
Transmitter Output 
Power...

22Chapter 1
 BatteryOperating 
Frequency 
Modulation 
Schemes 
Channel Numbers  •
Data Rate 
Media Access 
Protocol 
Transmitter Output 
Power
802.11b
Radio Technology 
Operating 
Frequency 
Modulation 
Schemes 
Channel Number  •
Data Rate 
Media Access 
Protocol 
Transmitter Output 
Power 
ItemSpecification
Vendor & model name
Battery Type Li-ion
Pack capacity  4400/5200 mAh
Number of battery cell 6
Package configuration 3S2P
ItemSpecificationSpecificationSpecification 

Chapter 223
System Utilities
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 F2 during POST (when Press  to enter Setup message is...

24Chapter 2
Information
The Information screen displays a summary of your computer hardware information.
NOTE: The system information is subject to different models.
ParameterDescription
CPU Type This field shows the CPU type and speed of the system.
CPU Speed This field shows the speed of the CPU.
HDD Model Name This field shows the model name of HDD installed on primary IDE master.
HDD Serial Number This field displays the serial number of HDD installed on primary IDE master.
ATAPI Model Name This...

Chapter 225
Main
The Main screen allows the user to set the system time and date as well as enable and disable boot option 
and recovery.
NOTE: The screen above is for your 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/Option
System Time Sets the system time. The hours are displayed with 24-
hour format.Format: HH:MM:SS 
(hour:minute:second) 
System Date...

26Chapter 2
Advanced
The Advanced screen allows the user to configure the various advanced BIOS options.
IMPORTANT: Making incorrect settings to items on these pages may cause the system to malfunction. Unless you 
have experience adjusting these items, we recommend that you leave these settings at the default values. If 
making settings to items on these pages causes your system to malfunction or prevents the system from booting, 
open BIOS and choose Load Optimal Defaults in the Exit menu to boot up...

Chapter 227
Peripheral 
ConfigurationEnter the Peripheral Configuration menu.  • Peripheral Configuration:
•Serial Port A
•Serial Port B
• Parallel Port
• SB On-chip Device Configuration
• OHCI0
• OHCI1
• OHCI2
• OHCI3
• OHCI4
• EHCI0
• EHCI1
•SATA
• Azalia
IDE 
ConfigurationEnter the IDE Configuration menu. • IDE Controller
• HDC Configure as
• Primary IDE Cable Type
• Serial ATA Port (0-5)
• Channel 4 Master and Slave
Video 
ConfigurationEnter the Video Configuration menu.  • Primary Video Adaptor
•...

28Chapter 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....

Chapter 229
Setting a Password
Follow these steps as you set the user or the supervisor password:
1.Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The 
Set Supervisor Password box appears:
2.Type a password in the “Enter New Password” field. The password length can not exceeds 8 
alphanumeric characters (A-Z, a-z, 0-9, not case sensitive). Retype the password in the “Confirm New 
Password” field.
IMPORTANT:Be very careful when typing your password because...

30Chapter 2
Changing a Password
1.Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The 
Set Password box appears.
2.Type the current password in the Enter Current Password field and press Enter.
3.Type a password in the Enter New Password field. Retype the password in the Confirm New Password 
field.
4.Press Enter. After setting the password, the computer sets the User Password parameter to “Set”.
5.If desired, you can enable the Password on boot...