Code

Beeps

POST Routine Description

 

 

 

3Ch

 

Advanced configuration of chipset registers

3Dh

 

Load alternate registers with CMOS values

 

 

 

42h

 

Initialize interrupt vectors

 

 

 

45h

 

POST device initialization

 

 

 

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 UserPatch1

 

 

 

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.

 

 

 

136

Chapter 4

Page 147
Image 147
Acer 5515 manual Display prompt Press F2 to enter Setup

5515 specifications

The Acer 5515 is a versatile and budget-friendly laptop that caters to the needs of students and casual users. It embodies a blend of functionality and portability, making it an attractive option for those seeking a reliable computing companion without breaking the bank.

The laptop features a 15.6-inch display, which delivers clear and vibrant visuals ideal for both work and entertainment. With a resolution of 1366x768 pixels, the screen provides adequate brightness and color reproduction, making it suitable for watching videos and browsing the web. The device's compact form factor ensures that it remains lightweight and easy to carry, making it an excellent choice for students who are always on the go.

Under the hood, the Acer 5515 is powered by an AMD processor, which typically offers a good balance between performance and energy efficiency. This allows for smooth multitasking and efficient handling of everyday tasks such as word processing, web browsing, and media playback. Coupled with ample RAM, the laptop ensures that users can run multiple applications simultaneously without experiencing significant slowdowns.

Storage options on the Acer 5515 often include traditional HDDs with substantial capacity, providing plenty of space for documents, photos, and multimedia files. Some configurations may also offer SSD options, which significantly enhance the system's responsiveness and boot times.

When it comes to connectivity, the Acer 5515 is equipped with essential ports such as USB 3.0, HDMI, and an SD card reader, allowing users to connect various devices and peripherals easily. Additionally, Wi-Fi and Bluetooth support enable seamless wireless connectivity, making it possible to connect to the internet and other devices without the hassle of cables.

Battery life is another commendable feature of the Acer 5515, often providing hours of usage on a single charge. This makes the laptop a reliable choice for students attending classes or professionals working remotely, as it minimizes the need for frequent recharging.

In conclusion, the Acer 5515 is a solid entry-level laptop that offers a blend of performance, portability, and essential features, making it an excellent choice for budget-conscious users seeking a dependable computing experience. Its robust design, coupled with user-friendly technologies, positions it as a suitable option for a variety of everyday computing tasks.