Acer Travelmate 4220 Service Guide

Chapter 145
Environmental Requirements
ItemSpecification
Temperature
Operating +5 ~  +35°C
Non-operating -20 ~ +65°C  (storage package)
Humidity
Operating 20% ~ 80%  without condensation
Altitude Operating sea level 0 to 10,000ft Storage sea level 0 to 40,000ft 

Chapter 246
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 optim ized, 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...

47Chapter 2
Information
ParameterDescription
CPU Type This item will show t he CPU information of the system.
CPU Speed This item will show the CPU clock speed.
IDE1 Model Name This item will show the  Model name of HDD installed on Primary IDE 
master. The hard disk model name is  automatically detected by the 
system. If there is no hard disk pr esent or unknown type, “None” 
should be shown on this field
IDE1 Serial Number This item will show the Se rial number of HDD installed on Primary IDE...

Chapter 248
Main
This menu provides you the information of the system.
ParameterDescription
System Time / System 
Date  The hours are displayed with 24 hours format. The values set in these two fields 
take effect immediately.
System Memory This field reports  the memory size of system base memory.  The size is fixed to 
640KB. 
Extended Memory This field reports the memory  size of the extended memory in the system. 
Extended Memory size = Total memory size - 1 MB 
Video Memory VGA Memory size = 128MB...

49Chapter 2
F12 Boot Menu When this is selected, users can modify device boot priority by pressing F12 key 
during POST. When this is not selected, device boot priority will not be 
adjustable during POST.
D2D Recovery Allow user to enable/disable the Disk-to-Disk recovery
ParameterDescription 

Chapter 250
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.
ParameterDescriptionOption
Supervisor Password Is N/A N/A
User Password Is N/A N/A
HDD Password Is N/A N/A
Set Supervisor Password Press Enter to set the administrator  password. When set, this password 
protects the BIOS  Setup Utility from...

51Chapter 2
Set Supervisor/User Password
If password on boot is required, the password must be set otherwise it cannot be enabled.
The formats of the password are as follows:
Length           No more than 8 characters
Characters    0-9,A-Z  (not case sensitive) 
While these fields are highlighted and press “Ente r”,  a window similar to the following is shown: 
If there is an old password then set up will prompt with the following win dow instead and a current password 
will be required to be entered at...

Chapter 252
User can now type password in field “Enter New Password”, and re-enter password in field “Confirm New 
Password” for verification. 
If the verification is OK: 
The password setting is complete after user presses enter. 
If the current password entered does not match the actual current password: 
If the new password and confirm new  password strings do not match: 
Setup Notice 
Changes have been saved. 
[ continue] 
Setup Warning 
Invalid password 
Re-enter Password 
[ continue] 
Setup...

53Chapter 2
Boot
This menu allows the user to decide the order of boot devices to load the operating system. Bootable 
devices includes the distette drive in module  bay, the onboard hard disk drive and the CD-ROM 
in module bay and onboard LAN device.
.
ParameterDescription
Boot priority order Keys used to view or configure devices: Up and Down  arrows select a device.  and  movew the device up 
or down.  and  specifies the device fixed or 
removable.
>
 exclude or include the device to boot.
 enables...

Chapter 254
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 Exit System Setup and save your changes to CMOS
Exit Discarding 
Changes Exit utility without saving Setup data to CMOS
Load Setup Default Load default values for all SETUP items
Discard Changes Load previous values from CMOS for all SETUP items
Save Changes  Save Setup Data to CMOS...