Acer 2420 manual Chapter

Page 83

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

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Image 83
Contents Aspire 3620/TravelMate 2420 Series Service Guide Revision History Date Chapter UpdatesDisclaimer CopyrightScreen Messages ConventionsPreface Page Table of Contents FRU Field Replaceable Unit List TroubleshootingJumper and Connector Locations Chapter System SpecificationsFeatures Human-centric design and ergonomics Intel 910GML System Block DiagramTop View Board LayoutBottom View Description Aspire 3620 front View Your Acer Notebook tourIcon Description TravelMate 2420 front viewCommunications Closed Front ViewRight View Left ViewBottom Panel Rear PanelAspire TravelMate IndicatorsIcon Function Description Easy-Launch ButtonsTouchpad Basics Launch key Default applicationChapter Lock Key Description Using the KeyboardDesired Access Num Lock On Num Lock Off Lock Keys and embedded numeric keypadKey Icon Description Windows KeysHot Keys Hot Key Icon Function Description Special Key Euro symbolAcer eDataSecurity Management Acer Empowering TechnologyPage Acer eLock Management Acer ePerformance Management Acer eRecovery Management Acer eSettings Management Acer Mode Acer ePower ManagementPage Acer ePresentation Management Second Level Cache Hardware Specifications and ConfigurationsSpecification ProcessorModem Interface Bluetooth InterfaceMemory Combinations LAN InterfaceHard Disk Drive Interface Wireless Module 802.11b/g optional deviceAudio Interface Combo Drive InterfaceDVD-Dual Interface Pcmcia Port Video InterfaceVideo Memory USB PortKeyboard BatterySystem Board Major Chips AC Adaptor LCD 14.1 inchLCD Inverter System Power Management Main Security Boot Exit System Utilities Bios Setup UtilityNavigating the Bios Utility Parameter Description InformationSystem Time MainParameter Description Format/Option Security Boot ExitParameter Description Option Setting a PasswordRemoving a Password Clear or SetChanging a Password Page +Hard Drive BootExit Information Main Security BootBios Flash Utility Machine Disassembly and Replacement Before You Begin General InformationHDD Disassembly Procedure FlowchartDescription Part Number Screw ListRemoving the Battery Pack Removing the Memory and the HDD Module Removing the LCD Module Removing the ODD ModuleChapter Page Disassembling the Main Unit Disassembling the Lower Case AssemblyPage Disassembling the Upper Case Assembly Page Disassembling the LCD Module Page Disassembling the ODD Module Disassembling the External ModulesDisassembling the HDD Module Symptoms Verified Go To TroubleshootingKeyboard or Auxiliary Input Device Check System Check ProceduresExternal Diskette Drive Check External CD-ROM Drive CheckMemory check Power System CheckCheck the Power Adapter Touchpad Check Check the Battery PackPower-On Self-Test Post Error Message Error Codes Error Messages Index of Error MessagesError Code List Error Message ListCPU ID No beep Error Messages FRU/Action in Sequence Code Beeps Post Routine Description Phoenix Bios Beep CodesChapter Code Beeps Post Routine Description Code Beeps Power-Related Symptoms Index of Symptom-to-FRU Error MessageLCD-Related Symptoms Indicator-Related SymptomsPower Management-Related Symptoms PCMCIA-Related SymptomsMemory-Related Symptoms Speaker-Related SymptomsModem-Related Symptoms Peripheral-Related SymptomsKeyboard/Touchpad-Related Symptoms Intermittent Problems Dimm Undetermined ProblemsTop View Jumper and Connector LocationsBottom View FRU Field Replaceable Unit List Category Part Name and Description Acer Part No Aspire 3620/TravelMate 2420 Exploded DiagramAspire 3620/TravelMate 2420 FRU List Not contain the black mylar as Image shows Middle Cover TM Upper Case TM CPU DOTHAN740 1.73GMHZ Intel Assy HDD Bracket AG1 CPU Heatsink W/SCREW W/O FAN H3M1A Belgium Keyboard 89KEY Darfon NSK AEK1F SV Hinge Pack LEFT/RIGHT RTC Battery Scrw M2*L3 Black Chapter Index

2420 specifications

The Acer 2420 is a versatile laptop that strikes a balance between performance and affordability, making it a popular choice for users ranging from students to professionals. This model is part of Acer’s Aspire series, known for its reliable build and innovative features.

One of the standout characteristics of the Acer 2420 is its design. The laptop features a sleek, lightweight chassis that is easy to carry, making it an excellent option for users who are often on the go. With a 14-inch display, it offers a compact size without compromising screen real estate, ensuring that users can enjoy decent visuals while working or streaming media.

In terms of performance, the Acer 2420 is powered by Intel’s Core i5 or AMD equivalent processors, providing robust computing capabilities that can handle everyday tasks with ease. Accompanied by 4GB or 8GB of RAM, the device multitasks efficiently, allowing users to run several applications simultaneously without glitches. Additionally, it typically comes with a 1TB HDD or SSD option, offering ample storage for files, documents, and multimedia.

The display quality of the Acer 2420 is commendable, featuring HD resolution that brings clarity and brightness to various content types, including videos and images. The laptop also incorporates Acer’s Color Intelligence technology, which dynamically adjusts the color and brightness based on the content being displayed, enhancing the overall viewing experience.

Technologically, the Acer 2420 is equipped with essential connectivity options such as USB 3.0 ports for speedy data transfer, HDMI output for external displays, and a card reader, catering to versatile connectivity needs. The laptop supports Wi-Fi and Bluetooth for seamless internet access and connectivity with other devices.

Battery life is another important aspect of the Acer 2420, with a capacity designed to last through a workday, minimizing the need for frequent recharges. This long-lasting battery, combined with energy-efficient components, makes the Acer 2420 an excellent companion for both work and leisure.

In conclusion, the Acer 2420 melds portability, solid performance, and practical features into an attractive package. For users seeking a dependable laptop that can keep up with daily tasks while also providing multimedia capabilities, the Acer 2420 is a commendable choice.