Acer Aspire 5940g Service Guide

Chapter 231
Power
The Advanced screen allows the user to configure the various advanced BIOS options.
IMPORTANT: Making incorrect settings to item s on these pages may cause the  system to malfunction. Unless 
you have experience adjusting these items, we re commend that you leave these settings at the 
default values. If making settings to items on thes e pages causes your system to malfunction or 
prevents the system from booting,  open BIOS and choose Load Optimal Defaults in the Exit menu to 
boot up...

32Chapter 2
Break Event Enter the Break Event menu• Storage Break Event
• PCIE Break Event
• PCI Break Event
• EHCI Break Event
• UHCI Break Event
• HDA Break Event 
ACPI S3 Enable or Disable ACPI S1/S3 Sleep State. N/A
Wake on PME Disable or Enable wake up when the 
system power is off and a PCI Power 
Management Enable wake up event occurs. N/A
Wake on Modem 
Ring Disable
 or Enable wake up when the 
system power is off and a modem attached 
to the serial port is ringing. N/A
Quickly S4 
Resume...

Chapter 233
Boot
This menu allows the user to decide the order of boot devices to load the operating system. Bootable devices 
includes the USB diskette drives, the onboard hard  disk drive and the DVD drive in the module bay.
Item Specific Help
Use < > or < > to select
a device, then press
 to move it down the
list, or  to move
it up the list. Press
 to escape the menu
F1
ESC Help
Exit
Select Item
Select Menu
Change Values
Select SubMenu
Enter F9
F10Setup Default
Save and Exit
Boot priority order:
1....

34Chapter 2
Exit
The Exit screen allows you to save or discard any changes you made and quit the BIOS Utility.
The table below describes the parameters in this screen.
ParameterDescription
Exit Saving Changes Exit System Setu p 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.
Item...

Chapter 235
BIOS Flash Utilities
The BIOS flash memory update is required for the following conditions:
• New versions of system programs
• New features or options
• Restore a BIOS when it becomes corrupted. 
Use the Phlash util ity 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....

36Chapter 2
DOS Flash Utility
Perform the following steps to use the DOS Flash Utility:
IMPORTANT:Use USB KEY, USB HDD, DVD-RW, and HDDs that can boot to DOS mode.
1. Press  F2 during boot to enter the Setup Menu.
2. Select  Boot Menu  to modify the boot priority order, for example, if using USB HDD to Update BIOS, move 
USB HDD to position 1.
3. Execute the  FLASH.BAT  batch file to update BIOS.
4. In flash BIOS, the message  Please do not remove AC Power Source  displays. If the AC power is not...

Chapter 237 

38Chapter 2
WinFlash Utility
Perform the following steps to use the WinFlash Utility:
1. Double-click the WinFlash executable.
2. Click  OK to begin the update. A progress screen displays. 

Chapter 239
Remove HDD/BIOS Password Utilities
This section provide you with removing HDD/BIOS password method:
Remove HDD Password:
If you key in the wrong HDD password three times, an error is generated.
To reset the HDD password, perform the following steps:
1. After the error is displayed, select the  Enter Unlock Password option on the screen.
2. An Encode key is generated for unlocking utilities. Note down this key.
3. Execute the  UnlockHD.EXE  file to create the unlock code  in DOS Mode using the...

40Chapter 2
Removing BIOS Passwords:
To clear the User or Supervisor passwords, open the RAM door and use a metal instrument to short the 
RTC_RST  jumper as shown below.
Cleaning BIOS Passwords
To clean the User or Supervisor  passwords, perform the following steps:
1. From a DOS prompt, execute  clnpwd.exe
2. Press  1 or  2 to clean the desired password shown on the screen.
The onscreen message determines whether the function is successful or not.