Acer Travelmate 4050 Service Guide

34Chapter 2
Advanced
The Advanced 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.
DescriptionOption
FIR I/O Settings Sets the base I/O address and IRQ for Infrared 
port.
Disabled, COM1, 3F8, IRQ4/ 
COM2, 2F8, IRQ3/ COM3, 3E8, 
IRQ4/ COM4, 2E8, IRQ3
DMA Setting for Fast IR Sets a DMA channel for the printer to...

Chapter 235
LPT Port
Configure the system’s parallel port using options: Disabled and Enabled.
The table below describes the parameters in the screen. Settings in boldface are the default and suggested 
parameter settings.
DescriptionOption
Port Definition Sets the mode for the parallel port.
Standard AT: Normal mode (AT compatible)
Bi-directional: Bi-directional mod (PS/2 
compatible)
Enhanced Parallel (EPP): EPP mode
Extended Capabilities (ECP): ECP mode 
(requires DMA channel)Standard AT (Centronics),...

36Chapter 2
Legacy USB Support
Disabled: Disable support for Legacy Universal Serial Bus.
Enabled: Enable support for Legacy Universal Serial Bus.
Insyde Software SCU                                     May 20, 2003  5:40:09  AM
Main Advanced Security Boot Exit 
Infrared Port (FIR)   
Parallel Port (LPT)
       
 £Legacy USB support        
     
  
   
Legacy USB keyboard, Floppy  Drive, USB Mouse Support 
 for Enable or Disable
 
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Chapter 237
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....

38Chapter 2
Boot
This menu allows the user to decide the order of boot devices to load the operating system. Bootable devices 
includes the diskette drive in module bay, the onboard hard disk drive and the CD-ROM in module bay.
Insyde Software SCU                               May 20, 2003 5:40:09 
Main Advanced Security Boot Exit 
      
   Boot Device   
    
 ------------------------------- ------------- --------Boot 
Device-------------------------------------- ----------------- 
  ---1st Boot...

Chapter 239
Exit
The Exit screen contains parameters that help safeguard and protect your computer from unauthorized use.
The table below describes the parameters in this screen.
ParameterDescription
Exit Saving Changes Allows the user to save changes to CMOS and reboot the system.
Exit Discarding Changes Allows the user Discards changes made and exits System Setup.
Load Setup Default Loads default settings for all parameters (same as t).
Discard Changes Allows the user to discard previous changes in...

40Chapter 2
BIOS Flash Utility
The BIOS flash memory update is required for the following conditions:
!New versions of system programs
!New features or options
!Restore a BIOS when it becomes corrupted. 
Use the Flash utility to update the system BIOS flash ROM.
NOTE: If you do not have a crisis recovery diskette at hand, then you should create a Crisis Recovery 
Diskette before you use the Flash utility.
NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use the Flash utilities.
NOTE:...

Chapter 341
This chapter contains step-by-step procedures on how to disassemble the notebook computer for 
maintenance and troubleshooting.
To disassemble the computer, you need the following tools:
TWrist grounding strap and conductive mat for preventing electrostatic discharge
TPlastic flat head screw driver
TPlastic tweezers
TPhilips screw driver
TAny plastic tool can take off the middle cover
NOTE: The screws for the different components vary in size. During the disassembly process, group the 
screws...

42Chapter 3
General Information
Before You Begin
Before proceeding with the disassembly procedure, make sure that you do the following:
1.Turn off the power to the system and all peripherals.
2.Unplug the AC adapter and all power and signal cables from the system.
3.Remove the battery pack.
NOTE:  TravelMate 290 series product uses mylar or tape to fasten the FFC/FPC/connectors/cable, you may 
need to tear the tape or mylar before you disconnect different FFC/FPC/connectors.
  

Chapter 343
Removing the Battery Pack
1.Slide the battery latch.
2.Then remove the battery.