Acer Aspire Asx1200 Service Guide

Chapter 223
PnP/PCI Configurations   
ParameterDescriptionOption
Reset Configuration Data If enabled, the system is forced to update Extended System 
Configuration Data (ESCD) and then is automatically set to the 
disabled mode. 
If disabled, the system ESCD will update only when the new 
configuration varies from the last one. Disabled
Enabled
Resources Controlled By When set to auto ESCD, the system BIOS will detect the system 
resources and automatically assign the relative IRQ and DMA channel 
for...

24Chapter 2
PC Health Status   
ParameterDescriptionOption
Smart FAN Control Enables or disables the smart system fan control function. Enabled
Disabled
Shutdown Temperature Set the CPU shutdown temperature. Disabled
60 C/140 F
65 C/149 F
70 C/158 F
°°
°°
°° 

Chapter 225
Load Default Settings
The Load Default Settings menu allows you to load the default settings for all BIOS setup parameters. Setup 
defaults are quite demanding in terms of resources consumption. If you are using low-speed memory chips or 
other kinds of low-performance components and you choose to load these settings, the system might not 
function properly.     

26Chapter 2
Set Supervisor Password
The Set Supervisor Password menu allows you to set a supervisor password. The supervisor password allows 
you to access and change all settings in the Setup Utility.     
Setting a supervisor password
1.Use the up/down arrow keys to select Set Supervisor Password menu then press Enter. 
A password box will appear.
2.Type a password then press Enter. 
The password may consist up to six alphanumeric characters (A-Z, a-z, 0-9)
3.Retype the password to verify the first...

Chapter 227
Set User Password
The Set User Password menu allows you to set a user password. Entering this password will restrict a user’s 
access to the Setup menus. A supervisor password must be set first before you can enable or disable this 
field. A user can only access and modify the system time, system date, and set user password.     
Setting a user password
1.Use the up/down arrow keys to select Set User Password menu then press Enter. 
A password box will appear.
2.Type a password then press...

28Chapter 2
Save & Exit Setup
The Save & Exit Setup menu allows you to save changes made and close the Setup Utility.     

Chapter 229
Exit Without Saving
The Exit Without Saving menu allows you to discard changes made and close the Setup Utility.     

30Chapter 2 

Chapter 331
This chapter contains step-by-step procedures on how to disassemble the desktop computer for maintenance 
and troubleshooting.
Disassembly Requirements
To disassemble the computer, you need the following tools:
TWrist grounding strap and conductive mat for preventing electrostatic discharge
TFlat-blade screwdriver
TPhilips screwdriver
THex screwdriver
TPlastic flat-blade screwdriver
TPlastic tweezers
NOTE: The screws for the different components vary in size. During the disassembly process,...

32Chapter 3
Pre-disassembly Procedure 
Before proceeding with the disassembly procedure, perform the steps listed below:
1.Turn off the system and all the peripherals connected to it. 
2.Unplug the power cord from the power outlets.
3.Unplug the power cord from the system.
4.Unplug all peripheral cables from the system. 
5.Place the system unit on a flat, stable surface.