Acer Travelmate 2490 Service Guide

							Chapter 253
If the new password and confirm new password strings do not match, the screen will display the following 
message. 
						

							54Chapter 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.
PhoenixBIOS Setup Utility
Information Main Advanced Security Exit
Item Specific Help
Use or to select a device
devices, then press  to
move it up the list, or  to
move it down the list. Press
 to escape the menu.
F1Help↑↓Select ItemF5/F6Change ValuesF9Setup Defaults
EscExit←→Select MenuEnterSelect4Sub -MenuF10Save and Exit
Boot
Boot priority order:
1: IDE 0: TOSHIBA MK6025GAS-(PM)
2: IDE 1: MATSHITADVD-RAM UJ-845S
3: IDE 2:
4: USB FDD:
5: PCI LAN: Broadcom MBA
6: USB HDD:
7: USB KEY:
8: USB CDROM: 
						

							Chapter 255
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 item.
Discard Changes Load previous values from CMOS for all SETUP items.
Save Changes Save Setup Data to CMOS.
PhoenixBIOS Setup Utility
Information Main Advanced Security Boot
Item Specific Help
Exit Saving Changes
Exit Disarding Changes
Load Setup Defaults
Exit System Setup and save
your changes to CMOS.
F1Help↑↓Select ItemF5/F6Change ValuesF9Setup Defaults
EscExit←→Select MenuEnterSelect4Sub -MenuF10Save and Exit
Discard ChangesExit
Save Changes 
						

							56Chapter 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 adaptor 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. 
Fellow the steps below to run the Phlash:
First, you have to create a crisis diskette. Follow the steps to create a crisis diskette.
1.Insert a floppy disk to the notebook under Windows mode.
2.Execute “wincris.exe”
3.Wait for few minutes. The process will completed automatically.
After you have created crisis diskette, you can then recovery the fail system.
1.Insert the Crisis diskette to the computer.
2.Press Fn+Esc and power on the sytem.
3.The systme will execute the file automatically. Wait for few minutes the system will reboot as the entire 
process completed. 
						

							Chapter 357
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 
						

							58Chapter 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 361
Removing the Battery Pack
1.Slide the battery latch then remove the battery.
  
						

							62Chapter 3
Removing the HDD Module/Memory/System Fan/Thermal Module/
CPU/ODD Module and LCD Module 
Removing the HDD Module
1.Remove the two screws fastening the HDD door.
2.Detach the HDD door from the notebook.
3.Pull the HDD module outwards to disconnect the HDD module from the main board.
4.Take out the HDD module carefully.
Removing the Memory/System Fan/Thermal Module/CPU
1.Remove the six screws fastening the thermal door. (M2.5*15(NL) for red circle; M2*3(NL) for yellow circle)
2.Detach the thermal door from the notebook.
3.Pop out the memory then remove it
4.Use a tweezer to take out the fan cable as shown.
5.Disconnect the fan cable from the main board.