Acer Aspire 9400 Service Guide

45Chapter 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 “Enter”,  a window similar to the following is shown: 
If there is an old password then setup will prompt with the following window instead and a current password 
will be required to be entered at...

Chapter 246
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 Warning...

47Chapter 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 or...

Chapter 248
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 
ChangesExit 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...

Chapter 349
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...

50Chapter 3
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 main board, you must first remove the keyboard, then disassemble the inside assembly frame in 
that order. 

Chapter 351
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:  This 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.
NOTE: There are several types of screws used...

52Chapter 3
Removing the Battery Pack
1.Release the battery lock.
2.Slide the battery latch.
3.Remove the battery pack.
 
 
07 - 第 

Chapter 353
Removing the miniPCI/Memory/HDD Module/Keyboard
Removing the miniPCI and Memory
1.Remove the two screws securing the miniPCI cover.
2.Remove the miniPCI cover.
3.Disconnect the wireless antenna.
4.Remove the wireless LAN card.
5.Remove the two screws securing the RAM door and remove the RAM door.
6.Press the left and right latches to pop up the memory. 

54Chapter 3
Removing the HDD
1.Remove the three screws that secure the HDD cover.
2.Remove the HDD cover.
3.Pull the HDD outward a little bit and remove the HDD.
Removing the keyboard
1.Open the notebook.
2.Remove the middle cover.
3.Release the four keyboard latches.
4.Pull the keyboard and trun it over.
5.Disconnect the keyboard FFC from the mainboard.