Acer 4220G, 4520G manual Chapter

Page 85

Code

Beeps

POST Routine Description

 

 

 

46h

2-1-2-3

Check ROM copyright notice

 

 

 

48h

 

Check video configuration against CMOS

 

 

 

49h

 

Initialize PCI bus and devices

 

 

 

4Ah

 

Initialize all video adapters in system

 

 

 

4Bh

 

QuietBoot start (optional)

 

 

 

4Ch

 

Shadow video BIOS ROM

 

 

 

4Eh

 

Display BIOS copyright notice

 

 

 

50h

 

Display CPU type and speed

 

 

 

51h

 

Initialize EISA board

 

 

 

52h

 

Test keyboard

 

 

 

54h

 

Set key click if enabled

 

 

 

58h

2-2-3-1

Test for unexpected interrupts

 

 

 

59h

 

Initialize POST display service

 

 

 

5Ah

 

Display prompt “Press F2 to enter SETUP”

 

 

 

5Bh

 

Disable CPU cache

 

 

 

5Ch

 

Test RAM between 512 and 640 KB

 

 

 

60h

 

Test extended memory

 

 

 

62h

 

Test extended memory address lines

 

 

 

64h

 

Jump to User Patch1

 

 

 

66h

 

Configure advanced cache registers

 

 

 

67h

 

Initialize Multi Processor APIC

 

 

 

68h

 

Enable external and CPU caches

 

 

 

69h

 

Setup System Management Mode (SMM) area

 

 

 

6Ah

 

Display external L2 cache size

 

 

 

6Bh

 

Load custom defaults (optional)

 

 

 

6Ch

 

Display shadow-area message

 

 

 

6Eh

 

Display possible high address for UMB

 

 

recovery

 

 

 

70h

 

Display error messages

 

 

 

72h

 

Check for configuration errors

 

 

 

76h

 

Check for keyboard errors

 

 

 

7Ch

 

Set up hardware interrupt vectors

 

 

 

7Eh

 

Initialize coprocessor if present

 

 

 

80h

 

Disable onboard Super I/O ports and IRQs

 

 

 

81h

 

Late POST device initialization

 

 

 

82h

 

Detect and install external RS232 ports

 

 

 

83h

 

Configure non-MCD IDE controllers

 

 

 

84h

 

Detect and install external parallel ports

 

 

 

85h

 

Initialize PC-compatible PnP ISA devices

 

 

 

86h

 

Re-initialize onboard I/O ports

 

 

 

87h

 

Configure Motherboard Configurable Devices

 

 

(optional)

 

 

 

88h

 

Initialize BIOS Area

 

 

 

89h

 

Enable Non-Maskable Interrupts (NMIs)

 

 

 

8Ah

 

Initialize Extended BIOS Data Area

 

 

 

8Bh

 

Test and initialize PS/2 mouse

 

 

 

Chapter 4

79

Image 85
Contents Aspire 4520/4220/4520G/4220G Series Service Guide Revision History Date Chapter UpdatesCopyright Conventions Preface Page Features System SpecificationsChapter Storage subsystem AudioInput devices CommunicationPage Environment Mono System Block Diagram System Block DiagramTop View Board LayoutBottom View Front View Your Acer Notebook tourIcon Description Closed Front View Left View Rear view Right ViewBase view IndicatorsIcon Function Description Easy-Launch ButtonsHDD Touchpad Basics Launch key Default applicationChapter Desired Access Num Lock On Num Lock Off Using the KeyboardLock Keys and embedded numeric keypad Windows KeysKey Icon Description Hot KeysHot Key Icon Function Description Technology onSpecial Key Euro symbolUS dollar sign Empowering Technology password Acer Empowering TechnologyAcer eNet Management Chapter AC Mode Adapter mode Acer ePower ManagementDC Mode Battery mode To create new power planAcer ePresentation Management Battery statusAcer eDataSecurity Management Chapter Acer eLock Management Acer eRecovery Management Getting to know your Acer OrbiCam Acer eSettings ManagementUsing the Acer OrbiCam as webcam Changing the Acer OrbiCam resolutionLaunching the Acer OrbiCam Acer GridVista dual-display compatible Using the System UtilitiesLaunch Manager Processor Hardware Specifications and ConfigurationsCPU Fan True Value Table Second Level CacheMemory Combinations System Memory2GB 0MBWireless Module 802.11a/b/g/n Bluetooth InterfaceLAN Interface Modem InterfaceAudio Interface DVD-Dual InterfacePcmcia Port USB PortSystem Board Major Chips KeyboardLCD 14.1 inch BatteryLCD Inverter System Power ManagementAC Adaptor Chapter 2000 MHz System Utilities Bios Setup UtilityNavigating the Bios Utility Parameter Description InformationMain Boot Power ExitParameter Description Format/Option Security Set Supervisor PasswordClear or Set Setting a PasswordParameter Description Option Changing a Password Removing a PasswordPage Power Exit BootDipm PowerHipm Parameter Description Format/Option Exit Information Main Security Boot PowerBios Flash Utility Machine Disassembly and Replacement Before You Begin General InformationHDD Disassembly Procedure FlowchartDescription Part Number Screw ListScrew M2*3NL Screw M2*4Removing the Battery Pack Removing the ODD Module Removing the HDD ModuleChapter Removing the Memory Removing the Wireless LAN CardRemoving the Keyboard and LCD Module Detach the LCD module from the main unit Disassembling the Main Unit Disassembling the Lower Case AssemblyRemoving the Main Board Removing the Bluetooth Module Disassembling the Upper Case AssemblyRemoving the Audio Board Removing the SpeakersRemoving the Touchpad Cable Disassembling the Main BoardRemoving the USB Board Removing the MDC Card ModuleRemoving the CPU Removing the Thermal Module and System FanDisassembling the LCD Module Disassembling the HDD Module Disassembling the External ModulesDisassembling the ODD Module Symptoms Verified Go To TroubleshootingExternal Diskette Drive Check System Check ProceduresExternal CD-ROM Drive Check Keyboard or Auxiliary Input Device CheckMemory check Power System CheckCheck the Power Adapter Touchpad Check Check the Battery PackPower-On Self-Test Post Error Message Error Code List Index of Error MessagesError Message List Error Codes Error MessagesCPU ID Cmos DimmLCD No beep Error Messages FRU/Action in SequenceCRT Code Beeps Post Routine Description Phoenix Bios Beep CodesChapter Code Beeps Post Routine Description Code Beeps LCD-Related Symptoms Index of Symptom-to-FRU Error MessageIndicator-Related Symptoms Power-Related SymptomsMemory-Related Symptoms PCMCIA-Related SymptomsSpeaker-Related Symptoms Power Management-Related SymptomsKeyboard/Touchpad-Related Symptoms Peripheral-Related SymptomsModem-Related Symptoms Intermittent Problems Dimm Undetermined ProblemsJumper and Connector Locations Bottom View FRU Field Replaceable Unit List Category Part Name and Description Acer Part No Aspire Mono Exploded DiagramPower Cordit 1.8M 3PBLACK Power CORDSWI1.8M 3PBLACKPower CORDS.A 1.8M 3BLACK Power Cord US 3PIN RohsCable Lower Case W/ SPEAKER, Modem Upper Case for FP W/TP, TPCable Base ODD CAP Base Duck RubberDVD/CDRW Combo Drive 24X Sony DVD/CDRW Combo ModuleCRX880A LF W/O Bezel DVD/CDRW Combo Drive 24X Hlds GCC-T10N Pata LF W/O Bezel ODD BracketSata LF F/W3.ALD WD1200BEVS-22RST0 ML80 Sata LFHTS541616J9SA00 SURUGA-B LF F WD1600BEVS-22RST0 ML80 Sata LFCategory Part Name and Description Acer Part No Wire W/0.3M CCD Bison LCD Cover Assy W/ANTENNA Antenna 3 Wire W/0.3M CCD LCD 12.1 IN. TFT Wxga NON-GLAREWire W/0.3M CCD Suyin LCD Bezel Assy W/LOGO W/CCD LCD LCD Module 12.1 Wxga WLCD Bracket W/HINGE L Antenna 2 Wire W/CCD LCD 12.1 IN. TFT Wxga NON-GLARELCD Bracket W/HINGE R LCD Module 12.1 Wxga W/OAntenna 2 Wire W/CCD LCD 12.1 IN. TFT Wxgag Glare AU Antenna 3 Wire W/ CCD LCD 12.1 IN. TFT Wxgag Glare AULCD Module 12.1 Wxgag W LCD Module 12.1 Wxgag W/OCard Reader W/O CPU Memory 512MB Hynix Ddrii 667 512MB Mainboard Mainboard 965GM Sata UMA WHYMP564S64CP6-Y5 LF 512MB Nanya Ddrii 667 512MB NT512T64UH8B0FN-3C LFScrew M2.0*1.5-INIANTI-LOOSE Screw M2.0*6-I-BNINYLOKScrew M2*5-IBZNNYLOK
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4220G, 4220, 4520G specifications

The Acer 4520G, 4220, and 4220G laptops are part of Acer’s previously popular Aspire series, known for delivering dependable performance and a range of features suitable for both casual users and professionals. Despite being older models, they still possess characteristics that can meet the demands of various computing needs.

First and foremost, these laptops are powered by AMD Turion 64 X2 processors, which provide a dual-core architecture, enabling them to handle multitasking effectively. This feature is particularly beneficial for users who engage in simultaneous applications, such as web browsing while streaming videos or editing documents. The efficient CPU performance ensures that the laptops maintain responsiveness during operation.

A notable advancement in the 4520G variant is the inclusion of a dedicated NVIDIA GeForce 8400M GS graphics card. This feature significantly enhances the graphical performance, making it suitable for light gaming and graphic-intensive applications. The integrated graphics in the 4220 and 4220G models, while adequate for everyday tasks, do not support demanding graphics as effectively.

Memory configurations for these models typically offer up to 4GB of RAM, which allows for smooth operation of everyday software and moderate gaming. Also, the inclusion of a 15.4-inch screen with a resolution of 1280x800 pixels provides a decent viewing experience suitable for both work and media consumption.

Storage options generally include a 120GB to 250GB hard drive, providing ample space for documents, applications, and media files. The laptops feature DVD-RW drives, enabling users to read and write CDs and DVDs, which is advantageous for data backup and media creation.

Connectivity options are also well-equipped, including several USB ports, HDMI output, and an Ethernet port for reliable internet connections. Wireless connectivity options, like Wi-Fi and Bluetooth, ensure that users can connect easily to networks and devices.

In terms of build, these laptops feature a sturdy design that, although bulkier than contemporary models, offers durability. The keyboard layout is comfortable for typing, and the touchpad provides decent responsiveness.

Overall, the Acer 4520G, 4220, and 4220G laptops present a blend of performance, reliability, and essential features. While they may not compete with the latest technology, they can still serve users who need a functional laptop for basic computing tasks.