Acer Aspire 8920g Service Guide

							Chapter 135
 
 
                (b) Release by ATAPI command 
                (c) Emergency Release
Power Requirement
Input Voltage 5 V +/- 5 % (Operating) 
Video Interface
ItemSpecification
Chipset Acer MXM compatible
USB Port
ItemSpecification
Chipset Built-in ICH8M
USB Compliancy Level 2
OHCI USB 1.1 and USB 2.0 Host controller
Number of USB port 4
Location  One on the left side; three on the right side
Serial port function control Enable/Disable by BIOS Setup
Express Card Interface
ItemSpecification
Express card controller Built-in ICH8M
Supports card type 75mmx54mm(W)x5mm
Number of slots One
Access location Left Side
Interface PCI Express
System Board Major Chips
Item Controller
Core logic Intel PM965 + ICH8M
VGA Acer MXM compatible
LAN ATHEROS_AR8121
USB 2.0 Built in ICH8M 
						

							36Chapter 1
 
CardReader Jmicro JMB385
MODEM Foxconn T60M955
Bluetooth Foxconn T60H928.11
Wireless 802.11 a+b+g Built-in ICH8-M
Audio Realtek ALC889X
Keyboard
ItemSpecification
Keyboard controller ITE 8512E
Total number of keypads 88-/89-key
Windows logo key Yes
Internal & external keyboard work 
simultaneouslyPlug USB keyboard to the USB port directly: Yes
Battery
ItemSpecification
Vendor & model name BATTERY PACK SANYO LI-ION 8 CELL2.4, 4800MAH
BATTRY PACK SONY LI-ION 8CELL2.4, 4800MAH
Battery Type Li-ion
Pack capacity  4800 mAH
Number of battery cell 8
Package configuration 4 cells in series, 2 series in parallel
Normal voltage 14.8V
Charge voltage 16.8+-0.2V
LCD 18.0 inch
ItemSpecification
Vendor & model name Samsung LNT184HT01-A01
Screen Diagonal (mm) 18.4 inches
Active Area (mm) 353.45(H) x 198.72(V) mm
Display resolution (pixels) 1920x1080 WUXGA
Pixel Pitch 0.213 (H) x 0.213(V) mm
Pixel Arrangement R.G.B. Vertical Stripe 
						

							Chapter 137
Display Mode Normally White
Typical White Luminance (cd/m2)
also called Brightness 300
Luminance Uniformity N/A
Contrast Ratio 600
Response Time (Optical Rise Time/Fall Time)msec 8
Nominal Input Voltage VDD +3.3V
Typical Power Consumption (watt) 4.5W
Weight(g) 550g
Physical Size(mm) 365x214x6.5
Electrical Interface Dual channel LVDS
Support Color 262,144
Viewing Angle (degree)
Horizontal: Right/Left 65/65
Vertial: Upper/Lower 50/50
Temperature Range(C)
Operating
Storage (shipping)
0 to +50 / -20 to +60
LCD Inverter
ItemSpecification
Vendor & model name TDK
Brightness conditions N/A
Input voltage (V) 9~20V
Input current (mA) 360mA (max)
Output voltage (V, rms) 710V (1800V for kick off)
Output current (mA, rms) 6.5mA  (max)
Output voltage frequency (k Hz) 58 KHz (max)
AC Adaptor
ItemSpecification
Input rating 100V AC to 240V AC, 47Hz to 63Hz 
						

							38Chapter 1
Maximum input AC current 1.5A
Inrush current  50A@115VAC
100A@230VAC
Efficiency 85% min. @115VAC input full load
System Power Management
ACPI modePower Management
Mech. Off (G3) All devices in the system are turned off completely.
Soft Off (G2/S5) OS initiated shutdown. All devices in the system are turned 
off completely.
Working (G0/S0) Individual devices such as the CPU and hard disc may be 
power managed in this state.
Suspend to RAM (S3) CPU set power down
VGA Suspend
PCMCIA Suspend
Audio Power Down
Hard Disk Power Down
CD-ROM Power Down
Super I/O Low Power mode
Save to Disk (S4) Also called Hibernation Mode. System saves all system 
states and data onto the disc prior to power off the whole 
system. 
						

							Chapter 247
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 bottom of screen).
Press m to enter setup. The default parameter of F12 Boot Menu is set to “disabled”. If you want to change 
boot device without entering BIOS Setup Utility, please set the parameter to “enabled”. 
Press  during POST to enter multi-boot menu. In this menu, user can change boot device without 
entering BIOS SETUP Utility.
System Utilities
Chapter  2 
						

							48Chapter 2
 Invoking BIOS Setup
The setup function can only be invoked by pressing F2 when   Press  to enter Setup  message is 
prompted on the bottom of screen during POST.
The setup uses a menu driven interface to allow the user to configure their system. The features are divided 
into 6 parts as follows:
                   Information    Display the system informations.
                   Main              allows the user to specify standard IBM PC AT system parameters.
                   Advanced      Provides advanced settings of the system.
                   Security         Provides security settings of the system.
                   Boot               Allows the user to specify the boot options.
                   Exit                 Allows the user to save CMOS setting and exit Setup.
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. Please 
note that system information is subject to different models. 
						

							Chapter 249
Information
NOTE: The system information is subject to different models.
ParameterDescription
CPU Type This field shows the CPU type and speed of the system.
IDE1 Model Name This field shows the model name of HDD installed on primary IDE master.
IDE1 Serial Number This field displays the serial number of HDD installed on primary IDE master.
IDE2I Model Name This field displays the mofel name of devices installed on secondary IDE master. The hard 
disk drive or optical drive model name is automatically detected by the system.
IDE2 Serial Number This field shows the serial number of devices installed on secondary IDE master.
System BIOS ver Displays system BIOS version.
VGA BIOS Ver This field displays the VGA firmware version of the system.
KBC Ver This field shows the keyboard 
Serial Number This field displays the serial number of this unit.
Asset Tag Number This field displays the asset tag number of the system.
Product Name This field shows product name of the system.
Manufacturer Name This field displays the manufacturer of this system. 
						

							50Chapter 2
UUID Number This will be visible only when an internal LAN device is presenting.
UUID=32bytes
ParameterDescription 
						

							Chapter 251
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 your reference only. Actual values may differ. 
						

							52Chapter 2
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 the system date. Format MM/DD/YYYY (month/day/
year)
System Date
System Memory This field reports the memory size of the system. 
Memory size is fixed to 640MB
Extended Memory This field reports the memory size of the 
extended memory in the system. 
Extended Memory size=Total memory size-1MB
VGA Memory Shows the VGA memory size. VGA Memory 
size=64/128MB
Quiet Boot Determines if Customer Logo will be displayed or 
not; shows Summary Screen is disabled or 
enabled. 
Enabled: Customer Logo is displayed, and 
Summary Screen is disabled.
Disabled: Customer Logo is not displayed, and 
Summary Screen is enabled. Option: 
Enabled or Disabled
Power on display Auto: During power process, the system will 
detect if any display device is connected on 
external video port. If any external display device 
is connected, the power on display will be in CRT 
(or projector) only mode. Otherwise it will be in 
LCD only mode.
Both: Simultaneously enable both the integrated 
LCD screen and the system’s external video port 
(for an external CRT or projector).Option: 
Auto or Both
Network Boot Enables, disables the system boot from LAN 
(remote server).Option: 
Enabled or Disabled
F12 Boot Menu Enables, disables Boot Menu during POST.
Option: 
Disabled or Enabled
D2D Recovery Enables, disables D2D Recovery function. The 
function allows the user to create a hidden 
partition on hard disc drive to store operation 
system and restore the system to factory 
defaults.Option: 
Enabled or Disabled