Code

Beeps

POST Routine Description

 

 

 

85h Initial

 

ize PC-compatible PnP ISA devices

86h

 

Re-initialize onboard I/O ports.

 

 

 

87h

 

Configure Motheboard Configurable Devices (optional)

 

 

 

88h

 

Initialize BIOS Data Area

 

 

 

89h

 

Enable Non-Maskable Interrupts (NMIs)

 

 

 

8Ah

 

Initialize Extended BIOS Data Area

 

 

 

8Bh

 

Test and initialize PS/2 mouse

 

 

 

8Ch

 

Initialize floppy controller

 

 

 

 

Code

Beeps

POST Routine Description

 

 

 

 

8Fh

 

 

Determine number of ATA drives (optional)

 

 

 

90h Initial

 

ize hard-disk controllers

 

 

 

 

91h

Initial

 

ize local-bus hard-disk controllers

 

 

 

 

92h

Jump

 

to UserPatch2

 

 

 

 

93h

 

 

Build MPTABLE for multi-processor boards

 

 

 

 

95h

 

 

Install CD ROM for boot

 

 

 

 

96h

 

 

Clear huge ES segment register

 

 

 

 

97h

 

 

Fixup Multi Processor table

 

 

 

 

98h

 

1-2

Search for option ROMs. One long, two short beeps on checksum

 

 

 

failure

 

 

 

 

99h

 

 

Check for SMART Drive (optional)

 

 

 

9Ah Shad

 

ow option ROMs

 

 

 

9Ch

 

Set up Power Management

 

 

 

9Dh

 

Initialize security engine (optional)

 

 

 

9Eh

 

Enable hardware interrupts

 

 

 

 

9Fh

 

 

Determine number of ATA and SCSI drives

 

 

 

A0h

 

Set time of day

 

 

 

A2h

 

Check key lock

 

 

 

A4h

 

Initialize Typematic rate

 

 

 

A8h Erase

 

F2 prompt

 

 

 

AAh

 

Scan for F2 key stroke

 

 

 

ACh Enter

 

SETUP

 

 

 

AEh

 

Clear Boot flag

 

 

 

B0h

 

Check for errors

 

 

 

B2h

 

POST done - prepare to boot operating system

 

 

 

B4h

1

One short beep before boot

 

 

 

B5h

 

Terminate QuietBoot (optional)

 

 

 

B6h

 

Check password (optional)

 

 

 

B9h Prep

 

are Boot

 

 

 

BAh

 

Initialize DMI parameters

 

 

 

BBh

 

Initialize PnP Option ROMs

 

 

 

BCh

 

Clear parity checkers

 

 

 

BDh

 

Display MultiBoot menu

 

 

 

 

Chapter 4

129

Page 139
Image 139
Acer 4552G, 4252 manual Setup

4252, 4552, 4552G specifications

The Acer 4552G, 4552, and 4252 series laptops are part of Acer's lineup that caters to users looking for a balance between performance, reliability, and affordability. This generation is designed primarily for everyday computing tasks, making it suitable for students, professionals, and casual users alike.

The Acer 4552G is particularly noteworthy for its robust hardware configurations. It is powered by AMD's Phenom II or Athlon processor options, delivering adequate processing power for multitasking and everyday applications. The laptop can support up to 8GB of RAM, allowing users to run multiple applications smoothly without significant slowdown.

Among the main features of the Acer 4552 series laptops is the integration of AMD Radeon graphics, specifically the Mobility Radeon HD 4000 series. This graphics capabilities offer a decent performance for light gaming and graphic-intensive tasks, which enhances its usability for media consumption and casual gaming.

Another key characteristic of these models is their display. The 15.6-inch widescreen LED-backlit display provides clear visuals and vibrant colors, making it suitable for watching movies and browsing the web. With a resolution of 1366 x 768 pixels, it meets the expectations for standard usage but may not satisfy users seeking higher definitions for graphic design work.

Connectivity options in the Acer 4552 series include multiple USB ports, HDMI output, and an integrated card reader, making it convenient to connect various peripherals and external devices. The inclusion of Wi-Fi and Ethernet ensures robust internet connectivity, which is essential in today's digital world.

Battery life is another aspect worth noting. The laptops typically come with a standard 6-cell battery that offers reasonable longevity, allowing users to get through a workday or study session without needing a recharge frequently.

In conclusion, the Acer 4552G, 4552, and 4252 laptops stand out for their thoughtful balance of features and technologies. With sufficient processing power, decent graphics capabilities, a good display, and ample connectivity options, these laptops are a solid choice for users seeking reliable performance at an affordable price. Their design and specifications cater well to the needs of everyday users while providing a platform for slight gaming and multimedia enjoyment.