Acer Aspire 4720 4720G 4720Z 4320 User Manual

							Chapter 245
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 supervisor, user, or hard disk password:
1.Use the w and y keys to highlight the Set Supervisor Password parameter and press the e key. The 
Set Supervisor Password box appears:
2.Type a password in the “Enter New Password” field. The password length can not exceed 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 the characters do not appear on the 
screen.
3.Press e. After setting the password, the computer sets the Supervisor Password parameter to “Set”.
4.If desired, you can opt to enable the Password on boot parameter.
ParameterDescriptionOption
Supervisor Password Is Shows the setting of the Supervisor password
Clear or Set
User Password Is Shows the setting of the user password.
Clear or Set
Hard Disk Password Status Shows the setting of the hard disk password.
Clear or HDD Password Set
Set Supervisor Password Press Enter to set the supervisor password. 
When set, this password protects the BIOS 
Setup Utility from unauthorized access. The 
user can not either enter the Setup menu nor 
change the value of parameters.
Set User Password Press Enter to set the user password. When 
user password is set, this password protects 
the BIOS Setup Utility from unauthorized 
access. The user can enter Setup menu only 
and does not have right to change the value of 
parameters.
NOTE: Only when the supervisor password 
was set then user password can be set.
Set Hard Disk Password Press Enter to set the hard disk password. 
When set, this password protects the internal 
hard disk from unauthorized access. The user 
can not either enter the Setup menu nor 
change the value of parameters.
Password on boot Defines whether a password is required or not 
while the events defined in this group 
happened. The following sub-options are all 
requires the Supervisor password for changes 
and should be grayed out if the user password 
was used to enter setup.
Disabled or Enabled
Set Supervisor Password
Enter New Password
Confirm New Password
[                            ]
[                            ] 
						

							46Chapter 2
5.When you are done, press u to save the changes and exit the BIOS Setup Utility.
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 Supervisor 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 Setup Utility.
Changing a Password
1.Use the w and y keys to highlight the Set Supervisor Password parameter and press the e key. The 
Set Supervisor 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 Supervisor 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.
If the verification is OK, the screen will display as following.
The password setting is complete after the user presses u.
Set Supervisor Password
Enter Current 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] 
						

							Chapter 247
If the current password entered does not match the actual current password, the screen will show you the 
Setup Warning.
If the new password and confirm new password strings do not match, the screen will display the following 
message.
Setup Warning
Invalid Password.
[Continue]
Setup Warning
Password do not match.
Re-enter password.
[Continue] 
						

							48Chapter 2
Boot
This menu allows the user to decide the order of boot devices to load the operating system. Bootable devices 
includes the onboard hard disk drive, the CD-ROM in module bay, and any external USB device.
Phoenix TrustedCore(tm) Setup Utility
   
 
  
Item Specific Help 
Boot priority order:  
   
 
 
 
Keys used to view or 
configure devices :
Up and Down arrows
select a device.
 and <
-> moves
the device up or down.
 and  specifies
the device fixed or
removable.
 exclude or include 
the device to boot. 
 enables or 
disables a device.
 Loads default
boot sequence.
  
 
F1  Help          Select Item          F5/F6 Change Values             F9 Setup Defaults 
Esc Exit            Select Menu      Enter  Select    Sub -Menu      F10 Save and Exit  
1:  IDE HDD: Hitachi HTS541616J9SA00-(S
2:  IDE CD : Optiarc DVD RW AD-7530A-(P 
3:  PCI BEV : MBA v9.4.5  Slot 0500
4:  USB HDD :
5:  USB CDROM :
6:  USB FDC :
7:  USB KEY :
Excluded from boot order :
8:  
  Information      Main            Security                    Boot                Exit 
						

							Chapter 249
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 Defaults Load default values for all SETUP item.
Discard Changes Load previous values from CMOS for all SETUP items.
Save Changes Save Setup Data to CMOS.
Phoenix TrustedCore(tm) Setup Utility
            
 
  
Item Specific Help 
Exit Saving Changes  
Exit Discarding Changes   
Load Setup Defaults 
 
 Exit System Setup and 
save your changes to 
CMOS.
 
F1  Help          Select Item          F5/F6 Change Values             F9 Setup Defaults 
Esc Exit            Select Menu      Enter  Select    Sub -Menu      F10 Save and Exit  
Discard Changes
Save Changes
  Information      Main            Security                    Boot                Exit 
						

							50Chapter 2
BIOS Flash Utility
The BIOS flash memory update is required for the following conditions:
TNew versions of system programs
TNew features or options
TRestore a BIOS when it becomes corrupted. 
Use the Phlash 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 Phlash utility.
NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use the Phlash.
NOTE: Please use the AC adapter power supply when you run the Phlash utility. If the battery pack does not 
contain enough power to finish BIOS flash, you may not boot the system because the BIOS is not 
completely loaded. 
Follow the steps below to run the Phlash.
1.Prepare a bootable diskette.
2.Copy the flash utilities to the bootable diskette.
3.Then boot the system from the bootable diskette. The flash utility has auto-execution function. 
						

							Chapter 351
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
TSmall Philips screw driver
TPhilips screwdriver
TPlastic flat head screw driver
TTw e e z e r s
NOTE: The screws for the different components vary in size. During the disassembly process, group the 
screws with the corresponding components to avoid mismatch when putting back the components. 
When you remove the stripe cover, please be careful not to scrape the cover.
Chapter 3
Machine Disassembly and Replacement 
						

							52Chapter 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. 
						

							Chapter 353
Disassembly Procedure Flowchart
The flowchart on the succeeding page gives you a graphic representation on the entire disassembly sequence 
and instructs you on the components that need to be removed during servicing. For example, if you want to 
remove the system board, you must first remove the keyboard, then disassemble the inside assembly frame in 
that order.
Start
Thermal
DoorHDD Door
LCD Module
Middle Cover
HDD Bracket
Keyboard
Battery Pack
F*2 D*5
F*1
B*4
C*2 LCD hinges to logic
D*2 LCD hinges to logic
C*2 on bottom side
C*8 upper case assembly to lower case assembly on bottom side
C*2 upper case assembly to lower case assembly on upper side
Lower Case
Assembly
Modem
BoardSwitch Board
(for AS
models)
Upper Case
Assembly
Main Board
H*4
Speaker Set
ODD Module
Thermal
Module
Lower Case
F*2 F*1
F*2F*1
System FanMemory
CPU
B*1
D*1
HDD
F*1
F*2
Media Board
(for AS
models)Touchpad
Bracket
F*1
TouchpadTouchpad
FFC
Mimi Cover
F*1 
						

							54Chapter 3
Screw List
ItemDescriptionPart Number
A SCREW M2.0*3.0-I-NI-NYLOK  86.A08V7.005
B SCREW M2.5*4.0-I(NI)(NYLOK) 86.D01V7.001
C SCREW M2.5*3.5-I(BNI)(NYLOK)  86.AHS07.001
D SCREW M1.6*3-I(NI)(NYLOK) 86.AHS07.002
E SCREW M2.5 *7L-BNI-NYLOK 86.A10V7.006
LCD Module
LCD Inverter
LCD Panel
Wireless
Antenna Set
LCD Bezel
G*1 for 15
G*2 for 15.4 B*4
B*2
G*2 for 15.4
F*8 (4 on left; 4 on right)
LCD
Assembly
LCD CableLCD Bracket
Sets
LCD