Code

Beeps

POST Routine Description

 

 

 

87h

 

Configure Motherboard 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

 

 

 

8Fh

 

Determine number of ATA drives (optional)

 

 

 

90h

 

Initialize hard-disk controllers

 

 

 

91h

 

Initialize 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

 

Shadow 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

 

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

 

 

 

Chapter 4

137

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Image 148
Acer 5515 manual Code Beeps Post Routine Description

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.