Acer Travelmate 250 Service Guide

32TravelMate 240/ 250
NOTE: IRQ settings may be changed by OS
00001000-0000107F Motherboard resources
00001180-000011BF Motherboard resources
00001800-00001807 Intel (R) 82850/82855 GM/GME Graphics Controller
00001810-0000181F Intel (R) 82801DB/DBM Ultra ATA Storage Controller-24CA
00001820-0000183F Intel (R) 82801DB/DBM USB Universal Host Controller-24C2
00001840-0000185F Intel (R) 82801DB/DBM USB Universal Host Controller-24C4
00001860-0000187F Intel (R) 82801DB/DBM USB Universal Host Controller-24C7...

Chapter 133
DMA Channel Assignment
DMA ChannelFunction
2 Standard floppy disk controller
3 ECP Printer Port (LPT1)
4 Direct memory access controller 

Chapter 234
BIOS Setup Utility
The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/
Output System).
Your computer is already properly configured and optimized, and you do not need to run this utility. However, if 
you encounter configuration problems, you may need to run Setup.  Please also refer to Chapter 4 
Troubleshooting when problem arises.
To activate the BIOS Utility, press 
m during POST (when “Press  to enter Setup” message is prompted 
on the...

35Chapter 2
Navigating the BIOS Utility
There are six menu options: Info., Main, System Devices, Security, Boot, and Exit.
Follow these instructions:
TTo choose a menu, use the cursor left/right keys (zx).
TTo choose a parameter, use the cursor up/down keys ( wy).
TTo change the value of a parameter, press por q.
TA plus sign (+) indicates the item has sub-items. Press e to expand this item.
TPress ^ while you are in any of the menu options to go to the Exit menu.
TIn any menu, you can load default...

Chapter 236
Information
ParameterDescription
Floppy Disk Drive Shows floppy drive type informaiton.
Serial Number This field displays the serial number of this unit.
UUID Number UUID=32bytes 

37Chapter 2
Main
The Main screen displays a summary of your computer hardware information, and also includes basic setup 
parameters. It allows the user to specify standard IBM PC AT system parameters.
NOTE: The screen above is for reference only. Actual values may differ. 

Chapter 238
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
NOTE: The sub-items under each device will not be shown if the device control is set to disable or auto. This is 
because the user is not allowed to control the settings in these cases.
ParameterDescriptionFormat/Option
System Time Sets the system time. Format: HH:MM:SS 
(hour:minute:second) System Time
System Date Sets the system date. Format MM/DD/YYYY...

39Chapter 2
Advanced
The Advanced menu screen contains parameters involving your hardware devices. It also provides advanced 
settings of the system.
The table below describes the parameters in the screen. Settings in boldface are the default and suggested 
parameter settings.
ParameterDescriptionOptions
Infrared Port Enables, disables or auto detects the infrared port.
Disabled/Disabled/Auto
Parallel Port Enables, disables or auto detects the parallel port.
Enabled/Disabled/Auto
Mode Sets the operation...

Chapter 240
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use. 

41Chapter 2
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.
Setting a Password
Follow these steps as you set the user or the supervisor password:
1.Use the w andy keys to highlight the Set Supervisor...