Acer Travelmate 550 Service Guide
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Chapter 133 Working (G0/S0)❑Individual devices such as the CPU and hard disk may be power managed in this state. S1 Sleeping State ❑CPU Stop Clock ❑VGA Standby, turn off back-light ❑PCMCIA Standby ❑Hard Disk Spin Down motor ❑CD-ROM Spin Down ❑Super I/O Power down S3 Sleeping State ❑CPU set power down ❑VGA Suspend ❑PCMCIA Suspend ❑Audio Suspend ❑Hard Disk Power Down ❑CD-ROM Power Down ❑Super I/O Power Down S4 Sleeping State ❑System Saves all system states and data onto disk prior to power off the whole system. Environmental Requirements ItemSpecification Temperature Operating +5~+35 °C Non-operating -20~+65 °C Non-operating -20~+65 °C (storage package) Humidity Operating 20% to 80% RH, non-condensing Non-operating 20% to 90% RH, non-condensing (unpacked) Non-operating 20% to 90% RH, non-condensing (storage package) Vibration Operating (unpacked) 5~500Hz: 1.0G Non-operating (unpacked) 50~500Hz: 2.16G Mechanical Specification ItemSpecification Dimensions 322 (W) x 277 (D) x 37.5/43.3(H) for 14.1 inch model 322(W) x 277 (D) x 38/44 (H) for 15.0 inch model Weight 6.68lbs for 14.1 inch model; 7.2 lbs for 15.0 inch model I/O Ports 1 parallel port (25 pins) EPP/ECP capability, 1 CRT port (15 pins) supports DDC 2B, 1 external PS2/AT full keyboard connector& 1 TV-out connector, 1 microphone-in port, 1 headphone-out with SPDIF port, 1 AC adapter jack (2 pins), 1 type III or type II PCMCIA card bus slots, 2 USB ports (4 pins), 11394 port (4 pins),1 RJ-11/RJ-45 port Drive Bays One Material Housing: Byer FR2000 Panel : Plastic Indicators Status LCD, Power LED, E-mail LED Switch Power, Lid, Application/Button Lock/CD-Play, Eject/Stop Button, Play/Pause Button, Reverse Button, Forward Button, Volume Down Button, volume up button ACPI modePower Management
34Chapter 1 Memory Address Map Memory AddressSizeFunction 00100000h-000F0000h 512 KB System BIOS 000CD000h-000C0000h VGA BIOS 000C0000h-000A0000h 128 KB Video memory (VRAM) 000A0000h-00000000h 640KB Conventional memory I/O Address Map I/O AddressFunction 000-00F DMA controller-1 020-021 Interrupt controller-1 040-043 Timer 1 060, 064 Keyboard controller 38859 chip select 061 System speaker out 040B DMA controller-1 061 System speaker 070-071 Real-time clock and NMI mask 080-08F DMA page register 0A0-0A1 Interrupt controller-2 0C0-0DF DMA controller-2 0F0-0FF Numeric data processor 170-177 2nd EIDE device (CD-ROM) select 1F0-1F7 1st EIDE device (hard drive) select 220-22F Audio 240-24F Audio (optional) 278-27F Parallel port 3 378,37A Paraller port 1 3B0-3BB 3C0-3DFVideo Controller 3F0h-3F7 Standard Floppy Disk Controller 3F0-3F7 Floppy disk controller 480-48F, 4D6 DMA controller-1 4D0-4D1 CF8-CFFPCI configuration register IRQ Assignment Map Interrupt ChannelFunction(Hardware) IRQ00 System timer IRQ01 Keyboard IRQ02 Programmable Interrup Controller IRQ03 Free IRQ04 Free IRQ05 1. PCI Audio 2. Internal Modem and Carbus Controller and IEEE 1394 host controller IRQ06 Standard Floppy Disk Controller IRQ07 ECP Printer Port (LPT1) IRQ08 Real Time Clock IRQ09 SCI IRQ used by ACPI bus
Chapter 135 IRQ10 S3 savage 4 O2Micro CardBus Control slot1 IRQ11 O2Micro CardBus Control slot1 USB Universal Host Control IRQ12 PS/2 Mouse IRQ13 Numeric data processor IRQ14 Primary IDE channel (hard disk) IRQ15 Secondary IDE channel (CD-ROM drive) DMA Channel Assignment DMA ChannelFunction(Hardware) 00 Standard Floppy Disk Controller 01 ECP Printer Port (default) 02 Free 03 Free IRQ Assignment Map Interrupt ChannelFunction(Hardware)
Chapter 237 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 mm m during POST (when “Press to enter Setup” message is prompted on the bottom of screen). Navigating the BIOS Utility There are six menu options: Main, System Device, Security, Others, Boot, and Exit. Follow these instructions: ❑To choose a menu, use the cursor left/right keys (zx). ❑To choose a parameter, use the cursor up/down keys ( wy). ❑To change the value of a parameter, press p or q. ❑A plus sign (+) indicates the item has sub-items. Press e to expand this item. ❑Press ^ while you are in any of the menu options to go to the Exit menu. ❑In any menu, you can load default settings by pressing t. You can also press u to save any changes made and exit the BIOS Setup Utility. NOTE: You can change the value of a parameter if it is enclosed in square brackets. Navigation keys for a particular menu are shown on the bottom of the screen. Help for parameters are found in the Item Specific Help part of the screen. Read this carefully when making changes to parameter values. System Utilities Chapter 2
38Chapter 2 Main The Main screen displays a summary of your computer hardware information, and also includes basic setup parameters. NOTE: The screen above is for 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.. The items in this screen are important and vital information about your computer. If you experience computer problems and need to contact technical support, this data helps our service personnel know more about your computer. NOTE: Main memory = system memory + extended memory 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 (month/day/ year) System Date Floppy Drive Shows floppy drive type information. Hard Disk Shows the hard disk model. Quiet Boot Determines the way the system boots up.Shows the high-capacity disc drive installed.Options: Enabled or Disabled Power on display Determines the display device on startup. Option: Auto-Selected or Simultaneous LCD Display stretch Specifies whether or not to expand the image to fill the screenOption: Enabled or Disabled System Memory Shows the amount of system memory. Extended Memory Shows the amount of extended memory BIOS Ver.Product Name Shows the system BIOS version.
Chapter 239 System Devices The System Devices screen contains parameters involving your hardware devices. The table below describes the parameters in the screen Settings in boldface are the default and suggested parameter settings. NOTE: VGA takes up a portion of system memory, configurable via the VGA Frame Buffer parameter. For example, if you have 128 MB SDRAM, and you set a VGA Frame Buffer of 16MB, main memory is 11 2 M B . ParameterDescriptionOptions Pointing Device Determines whether or not to disable the internal touchpad of a PS/2 pointing device is connected. Simultaneous or Auto-Selected Ext.Keyboard “Fn” Allows you to simulate an Fn key on an external keyboard by pressing the left b + left a keys Enabled or Disabled IDE Controller Enables or disables the primary or secondary IDE controller or both. Both, Primary or Disabled FDD Controller Enables or disables the floppy drive controller. Enabled or Disabled Parallel Port Enables or disables the parallel port. Enabled or Disabled IRQ Sets the interrupt request of the parallel port. IRQ 7 or IRQ5 Mode Sets the operation mode of the parallel port. ECP, EPP or Bi-directional Base I/O address Sets the I/O address of the parallel port. This parameter is enabled only if Mode is set to ECP or Bi-directional. 378, 278 or 38C DMA Channel Sets a DMA channel for the printer to operate in ECP mode. This parameter is enabled only if Mode is set to ECP. 3 or 1 VGA Frame Buffer Size Specifies the amount of main memory to allocate for VGA. 16Mb, 32Mb or 8Mb Item Specific Help Pointing Device: Ext. Keyboard “Fn”: IDE Controller: FDD Controller: Parallel Port: Interrupt: Mode: Base I/O address: DMA channel: VGA Frame Buffer Size:[Simultaneous] [Enabled] [Both] [Enabled] [Enabled] [IRQ 7] [ECP] [378] [DMA 3] [16 Mb] Main Security Others Boot ExitSystem Devices F1 Help Select Item F5/F6 Change Values F9 Setup Defaults Esc Exit Select Menu Enter Select > Sub-Menu F10 Save and Exit↑↓ ←→
40Chapter 2 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. Setting a Password Follow these steps: 1.Use the w andy keys to highlight the Set User Password parameter and press the e key. The Set User Password box appears: ParameterDescriptionOption User Password Shows the setting of the user password. Clear or Set Set User Password Press Enter to set the user password. When set, this password protects the BIOS Setup Utility from unauthorized access. Password on boot When enabled, the user password protects the computer from unauthorized access during boot up. Disabled or Enabled Item Specific Help User Password: Set User Password: Password on boot:Clear [Enter] [Disabled] Main System Devices Others Boot ExitSecurity F1 Help Select Item F5/F6 Change Values F9 Setup Defaults Esc Exit Select Menu Enter Select > Sub-Menu F10 Save and Exit↑↓ ←→ Set Password Enter new password: Confirm new password:[ ] [ ]
Chapter 241
2.Type a password in the Enter new password field. The password may consist of up to eight alphanumeric
characters (A-Z, a-z, 0-9). Retype the password in the Confirm new password field.
IMPORTANT:Be very careful when typing your password because the characters do not appear on the
screen.
3.Press e.
After setting the password, the computer sets the User Password parameter to “Set”.
4.If desired, you can opt to enable the Password on boot parameter.
5.When you are done, press u to save the changes and exit the BIOS Setup Utility.
Removing a Password
Follow these steps:
1.Use the w and y keys to highlight the Set User Password parameter and press the e key. The Set
Password box appears:
2.Type the current password in the Enter Current Password field and press e.
3.Press e twice without typing anything in the Enter New Password and Confirm New Password fields.
The computer then sets the User Password parameter to “Clear”.
4.When you have changed the settings, press u to save the changes and exit the BIOS Setup Utility.
Changing a Password
1.Use the w and y keys to highlight the Set User Password parameter and press the e key. The Set
Password box appears:
2.Type the current password in the Enter Current Password field and press e.
3.Type a password in the Enter New Password field. Retype the password in the Confirm New Password
field.
4.Press e. After setting the password, the computer sets the User Password parameter to “Set”.
5.If desired, you can enable the Password on boot parameter.
6.When you are done, press u to save the changes and exit the BIOS Setup Utility.
Set Password
Enter Current Password
Enter New Password
Confirm New Password[ ]
[ ]
[ ]
Set Password
Enter Current Password
Enter New Password
Confirm New Password[ ]
[ ]
[ ]
42Chapter 2 Others The Others screen contains various parameter settings. The table below describes the parameters in this screen. Settings in boldface are the default and suggested parameter settings. ParameterDescriptionOptions Low Battery Alarm Determines whether or not the system will alarm when the battery power is low. Enabled or Disabled Panel Close Alarm Determines whether or not the system will alarm when the display cover is closed. Disabled or Enabled System Beep Determines whether or not the system will emit a beep on boot up. Enabled or Disabled Sticky Key Determines whether or not to press Fn together with function keys ( l,m...etc.) when you need to adjust the system functions, such as brightness. If you set it as enabled, then you do not have to press the function keys with the Fn key. You can press the Fn key once then adjust the function. If you select disabled, you have to press the Fn key with the function keys togetherEnabled or Disabled Installed O/S Sets the operating system in use. Note: If your O/S is Win NT 4.0, please select the installed O/S as Win NT 4.0. Otherwise, there may be some power management problems occur, becuase Win NT 4.0 employs APC mode. Win98/Me/2K/XP or only Win NT4.0