Acer Aspire 1620 Service Guide

32Aspire 1620
Environmental Requirements
ItemSpecification
Temperature
Operating
+5~+35 
°C
Non-operating
-20~+60 
°C
Humidity
Operating 10% to 95% RH, non-condensing without disktte
10% to 80% RH, non-condensing with disktte
Non-operating 20% to 80% RH, non-condensing (Unpacked)
Non-operating 20% to 90% RH, non-condensing (Storage package)
Vibration
Operating 5~250Hz 0.5Grms, 15mins per axis
Non-operating (unpacked) 1.04 Grms, 2-200Hz 15 mins per axis
Non-operating (packed) 1.04 Grms, 2-200Hz 15 mins...

Chapter 133 

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...

35Aspire 1620
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
NOTE: The system information is subject to different models.
ParameterDescription
Floppy Disk Drive Shows floppy drive type informaiton.
Note: Aspre 1620, Extensa 2700, TravelMate 2500 and Extnesa 2500 series products do 
not have floppy disk drive; Extensa 2000 and TravelMate 2000 series have floppy disk 
drive.
HDD Model Name This field shows the model name of HDD installed on primary IDE master.
HDD Serial Number This field displays the serial number of HDD installed on primary...

37Aspire 1620
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. The hours are displayed 
with 24-hour format.Format: HH:MM:SS 
(hour:minute:second) System Time
System Date Sets...

39Aspire 1620
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
Hyper-Threading 
TechnologyThe function is supported only when the CPU 
installed is 3.06G or above. The system will 
automatically hide this selection when detecting the 
CPU frequency is below...

Chapter 240
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.DMA3/DMA1
Legacy USB Support Enables, disables USB interface devices support. 
(Enable for use with a non-USB aware Operating 
System such as DOS or UNIX).Option: 
Disabled or Enabled
Hard Disk Recovery Enables or disables Hard Disk to Hard Disk system 
Recovery by pressing Fn+F10 key during POST.Option: 
Disabled or Enabled
ParameterDescriptionOptions 

41Aspire 1620
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use.