Acer Aspire 4230 Service Guide

Chapter 231
Main
The Main screen allows the user to set the system time and date as well as enable and disable boot option 
and recovery.
NOTE: The screen above is for your reference only. Actual values may differ.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
ParameterDescriptionFormat/Option
System Time Sets the system time. The hours are displayed with 24-hour 
format.Format: HH:MM:SS 
(hour:minute:second) 
System Date...

32Chapter 2
Advanced
The Advanced screen allows the user to configure the various advanced BIOS options.
IMPORTANT:Making incorrect settings to items on these pages may cause the system to malfunction. Unless 
you have experience adjusting these items, we recommend that you leave these settings at the 
default values. If making settings to items on these 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...

Chapter 233
Enable 
Multimedia TimerEnable [Ye s] or Disable [No] Multimedia 
Timer support.N/A
Watchdog TimerDisable or Enable the OS Watchdog Timer 
using ACPI WDAT.N/A
Hammer 
ConfigurationEnter the Hammer Configuration menu.  • HT-LDT Frequency
•HT-LDT Width
• DDR2 Memory Frequency
• LS Table loading
• ISO Flow Control
• Hi Priority Channel
• Display Refresh
• Sync Flood Detection
Integrated 
DevicesEnter the Integrated Devices menu.  • USB Control
• USB2 Control
• USB BIOS Legacy Support
•MAC LAN
•...

34Chapter 2
iGPU - Chipset Enter the iGPU - Chipset menu.  • Integrated Graphic
• Video Memory
• Hybrid Graphics
•mGPU nPW
•MXM LVDS/TV
•MXM CRT/DVI
• Panel Scaling
• Boot Display
• Preferred TV Connector
• TV Format
LCD Panel type Select the correct LCD panel type for 
testing purposes.N/A
ParameterDescriptionSubmenu Items 

Chapter 235
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use.
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....

36Chapter 2
Setting a Password
Follow these steps as you set the user or the supervisor password:
1.Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The 
Set Supervisor Password box appears:
2.Type a password in the “Enter New Password” field. The password length can not exceeds 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...

Chapter 237
Changing a Password
1.Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The 
Set Password box appears.
2.Type the current password in the Enter Current Password field and press Enter.
3.Type a password in the Enter New Password field. Retype the password in the Confirm New Password 
field.
4.Press Enter. After setting the password, the computer sets the User Password parameter to “Set”.
5.If desired, you can enable the Password on boot...

38Chapter 2
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.
             PhoenixBIOS Setup Utility
Information     Main     Advanced Securit yBootPower Exit
It em Spec ific  Help
Boot  priorit y  order:Key s  us ed t o view or
   1:  IDE 4 :  Tos hiba MK1646GSX - (S1)c onfigure devic es :
   2: IDE CD : Up and Down arrows
   3: PCI BEV : MBA...

Chapter 239
Power
The Power screen allows the user to configure various CPU and power management options and device 
wakeup behavior.
The table below describes the items, menus, and submenus in this screen. Settings in boldface are the default 
and suggested parameter settings. 
ParameterDescriptionOption
C1E Configuration Enable or Disable C1E Dual-Core related 
CPU power State.Griffin Mode or Disabled
CPU Throttle Enable or disable CPU Throttle.Disabled or Enabled
CPU Spread Spectrum Enable or disable...

40Chapter 2
AltVid Enable or disable AltVid functionality.Disabled or Enabled
ASPM (L0s/L1s) Enable or disable Active State Power 
Management (ASPM) states for L0s and L1.Disable L0s, Disable L1, 
Enabled, or Disabled
PCIE Lane Swizzle Enable or disable PCIE Lane Swizzle for 
PCIE x 16 slot.Disabled or Enabled
ParameterDescriptionOption