Acer Aspire 5050 Service Guide

							Chapter 253
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 Security Exit
Item Specific Help
Boot priority order:
Keys used to view or configure
device:
Use Up and Down arrows to
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.
F1Help↑↓Select ItemF5/F6Change ValuesF9Setup Defaults
EscExit←→Select MenuEnterSelect4Sub -MenuF10Save and Exit
Boot
1:CD-ROM: PIONEER DVD-RW DVR-K17RS- (PM)
2:USB CD-ROM:
3:IDE 0: HTS541010G9AT00- (PM)
4:IDE 4:
5:Network Boot: Realtek Boot Agent
6: USBHDD:
7: USBFloppy:
8: USB KEY:
Excluded from boot order: 
						

							54Chapter 2
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 
						

							Chapter 255
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.
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. 
						

							56Chapter 2
Remove HDD/BIOS Utility
This section provide you with removing HDD/BIOS method:
Remove HDD Password:
TIf you key in wrong HDD password for three time, “HDD password error code” would display on the 
screen. See the image below.
TIf you need to solve HDD password locked problem, you can run HDD_PW.EXE
1.
Key in “hdd_pw 15494 0”
2.Select “2”
3.Choose one upper-case string
TReboot system and key in “0KJFN42” or “UVEIQ96” to HDD user password. 
						

							Chapter 257
Remove BIOS Password:
TIf you key in wrong Supervisor Password for three time, “System Disabled” would display on the 
screen. See the image below. 
						

							58Chapter 2
TIf you need to solve BIOS password locked problem, you can run BIOS_PW.EXE
1.
Key in “bios_pw 14452 0”
2.Choose one upper-case string
TReboot the system and key in “qjjg9vy” or “07yqmjd” to BIOS user password. 
						

							Chapter 259 
						

							60Chapter 2 
						

							Chapter 361
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 
						

							62Chapter 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.