Acer Travelmate 4650 Service Guide

42Chapter 1
Power consump. 
efficiency index (W/
GB) 0.016 0.011 0.008 NA
Physical size
Height (mm) 9.5 9.5 9.5 9.5
Width (mm) 70 70 70 70
Depth (mm) 100 100 100 100
Weight - typical (g) 95 99 99 102
Environmental characteristics
Operating
Ambient 
temperature5  to 55  C 5  to 55  C 5  to 55  C 5  to 55  C
Relative humidity 
(non-condensing)8% - 90% 8% - 90% 8% - 90% NA
Maximum wet bulb 
(non-condensing)29.4 C 29.4 C 29.4 CNA
Shock (half sine 
wave)200G/2ms 200G/2ms 200G/2ms 300 G / 2ms, 160G 
/ 1ms...

Chapter 243
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...

44Chapter 2
Buttons
Application Launch Buttons
NOTE: Detail description and definition of application Launch Buttons, please reference the External spec. 
Power Button
The activity of the power button is as follows: 
TIf power button is pressed for less than 1 second then nothing happens. 
TIf power button is pressed for more than 1 second but less than 4 seconds then system would execute 
User Requested OFF before the system entered into OS.
TIf power button is pressed for more than 4 seconds then the...

Chapter 245
Hard Disk Password Function/ Password on boot function 
This feature allows the user to set the password to prevent any unauthorized access to the internal hard disk. 
TIf the original HDD come from other machine with password protected, the system just show ” Enter HDD 
password [         ]”
User is required to enter HDD password when system boot up. 
TIf user enter the wrong password, it will pop out message “Setup Warning, Invalid Passwrod”.....
TIf the password is correct, system will...

46Chapter 2
Information 
ParameterDescription
Product Name This field will show the product name 
Manufacture Name This field will show manufacturer name
BIOS Version This field reports the BIOS version of system
VGA Version This field reports the VGA version of the system
HDD Model Name This item will show the Model name of HDD installed on Primary IDE 
master. The hard disk model name is automatically detected by the 
system. If there is no hard disk present or unknown type, “None” 
should be shown on...

Chapter 247
Video Memory VGA Memory size :
Discrete = 64 or 128MB (depends on actual VRAM size) 
TurboCache = 32MB (actual TurboCache VRAM size) 
Intel 915 DVMT: selectable between the following: 
1.64MB (8MB pre-allocated + 56MB DVMT) 
2.128MB (8MB pre-allocated + 128DVMT).  This is the default 
value. 
3.Max DVMT (160MB on 256MB system memory, 224MB on 
512MB and above system memory).    
ParameterDescription 

48Chapter 2
Main
This menu provides you the information of the system.
ParameterDescription
Date and Time The hours are displayed with 24 hours format. The values set in these two fields 
take effect immediately.
Quiet Boot Customer Logo display will be shown during POST when it is selected.
LCD Auto DIM Enabled: LCD brightness will automatically lower to save more power when AC 
is not present.
Disabled: LCD brightness will NOT automatically lower to save more power 
when AC is not present.
Network Boot...

Chapter 249
Advanced
The Advanced screen contains parameters involving your hardware devices. It also provides advanced
 settings of the system.
Insyde Software SCU                                     May 20, 2003  5:40:09  AM
Main Advanced Security Boot Exit  
Infrared Port (FIR)   -----------------------------FIR Ports-------------------------- 
-----FIR I/O settings----Mode Setting for IRDA-  
 
)Legacy USB Support 
(³³) Disabled (  ) Normal (16550)  
(  ) COM1,3F8,IRQ4(  ) IrDA (HPSIR)  
 
(&)...

50Chapter 2
The table below describes the parameters in the screen. Settings in boldface are the default and suggested
 parameter settings.
DescriptionOption
Infrared Port (FIR)
FIR I/O Settings  Sets the base I/O address and IRQ for 
Infrared port.Disabled
COM1, 3F8, IRQ4
COM2, 2F8, IRQ3
COM3, 3E8, IRQ4
COM4, 2E8, IRQ3
DMA Setting for Fast IR Sets a DMA channel for the printer to 
operate in ECP mode. This parameter is 
enabled only if Mode is set to ECPDMA1, DMA2, DMA3
Mode Setting for IrDA Normak...

Chapter 251
Security
The Security screen contains parameters that help safeguard and protect your computer from 
unauthorized use.
If password on boot is required, the password must be set otherwise it cannot be enabled.
The formats of the password are as follows:
TLength           10 characters
TCharacters    Alphanumeric keys only. The shift status i.e. Ctrl, Shift, Alt and Capital are ignored.
The table below describes the parameters in this screen. Settings in boldface are the default and 
suggested...