Code

Beeps

POST Routine Description

 

 

 

B9h

 

Prepare Boot

 

 

 

BAh

 

Initialize DMI parameters

 

 

 

BBh

 

Initialize PnP Option ROMs

 

 

 

BCh

 

Clear parity checkers

 

 

 

BDh

 

Display MultiBoot menu

 

 

 

BEh

 

Clear screen (optional)

 

 

 

BFh

 

Check virus and backup reminders

 

 

 

C0h

 

Try to boot with INT 19

 

 

 

C1h

 

Initialize POST Error Manager (PEM)

 

 

 

C2h

 

Initialize error logging

 

 

 

C3h

 

Initialize error display function

 

 

 

C4h

 

Initialize system error handler

 

 

 

C5h

 

PnPnd dual CMOS (optional)

 

 

 

C6h

 

Initialize notebook docking (optional)

 

 

 

C7h

 

Initialize notebook docking late

 

 

 

C8h

 

Force check (optional)

 

 

 

C9h

 

Extended checksum (optional)

 

 

 

D2h

 

Unknown interrupt

 

 

 

 

 

Code

 

Beeps

 

 

 

 

 

 

 

 

 

 

E0h

 

 

 

Initialize the chipset

 

 

 

 

 

 

 

 

 

E1h

 

 

 

Initialize the bridge

 

 

 

 

 

 

 

 

 

E2h

 

 

 

Initialize the CPU

 

 

 

 

 

 

 

 

 

E3h

 

 

 

Initialize the system timer

 

 

 

 

 

 

 

 

 

E4h

 

 

 

Initialize system I/O

 

 

 

 

 

 

 

 

 

E5h

 

 

 

Check force recovery boot

 

 

 

 

 

 

 

 

 

E6h

 

 

 

Checksum BIOS ROM

 

 

 

 

 

 

 

 

 

E7h

 

 

 

Go to BIOS

 

 

 

 

 

 

 

 

 

E8h

 

 

 

Set Huge Segment

 

 

 

 

 

 

 

 

 

E9h

 

 

 

Initialize Multi Processor

 

 

 

 

 

 

 

 

 

EAh

 

 

 

Initialize OEM special code

 

 

 

 

 

 

 

 

 

EBh

 

 

 

Initialize PIC and DMA

 

 

 

 

 

 

 

 

 

ECh

 

 

 

Initialize Memory type

 

 

 

 

 

 

 

 

 

EDh

 

 

 

Initialize Memory size

 

 

 

 

 

 

 

 

 

EEh

 

 

 

Shadow Boot Block

 

 

 

 

 

 

 

 

 

EFh

 

 

 

System memory test

 

 

 

 

 

 

 

 

 

F0h

 

 

 

Initialize interrupt vectors

 

 

 

 

 

 

 

 

 

F1h

 

 

 

Initialize Run Time Clock

 

 

 

 

 

 

 

 

 

F2h

 

 

 

Initialize video

 

 

 

 

 

 

 

 

 

F3h

 

 

 

Initialize System Management Mode

 

 

 

 

 

 

 

 

 

F4h

 

1

 

Output one beep before boot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chapter 4

113

Page 123
Image 123
Acer 5220, 5320 manual Code Beeps

5320, 5220 specifications

The Acer 5520, 5220, and 5520G series laptops are part of Acer's Aspire lineup, targeting everyday users with a balance of performance, affordability, and portability. These models, launched around the mid-2000s, have played a significant role in making computing accessible to a broader audience.

The Acer 5520 and 5220 models are powered by AMD processors, with the 5520 focusing on enhanced performance suitable for light gaming and multimedia tasks. The 5520G, in contrast, is equipped with a dedicated graphics card, specifically designed to provide better graphics performance for gaming and graphics-intensive applications. This makes the 5520G an appealing choice for users who require superior visuals and enhanced gaming experiences.

These laptops come with a range of display options, primarily featuring a 15.4-inch TFT LCD screen. The 1280 x 800 resolution, while standard for its time, provides decent clarity for basic tasks like browsing, office applications, and video playback. The aspect ratio promotes a balance between productivity and entertainment, making it suitable for casual use.

The design of the Acer 5520 and its variants reflects a functional aesthetic, with a compact chassis that weighs just a few kilograms. This lightweight configuration enhances portability, allowing users to easily carry them to school, work, or during travel. Additionally, these laptops feature a full-sized keyboard, providing a comfortable typing experience for prolonged use.

One of the significant characteristics of the Acer laptops is their connectivity options. The models are typically equipped with multiple USB ports, a built-in webcam, an SD card reader, and an integrated microphone, covering the essential connectivity needs of users. The inclusion of Wi-Fi capabilities enables seamless internet access, facilitating online communication and browsing.

Battery life is another consideration, with these models offering decent performance for casual users. While not the longest-lasting in the market, the provided battery can typically support a few hours of use, making them suitable for on-the-go tasks.

In terms of storage, the laptops usually come with various hard drive options, allowing users to choose an adequate capacity suited to their needs. With a Windows operating system installed, these models are ready for extensive software use, fulfilling the requirements of students and professionals alike.

In summary, the Acer 5520, 5220, and 5520G laptops provide a blend of critical features geared toward everyday computing. Their balance of performance, portability, and connectivity make them suitable devices for users who seek reliable functionality without breaking the bank.