Code

Beeps

POST Routine Description

 

 

 

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

 

 

 

8Ch

 

Initialize floppy controller

 

 

 

Chapter 4

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Acer C210 manual Chapter

C210 specifications

The Acer C210 is a portable and versatile device that combines the functionality of a traditional laptop with the convenience of a tablet. Designed for users on the go, the C210 features a lightweight and slim design, making it an ideal choice for students, professionals, and anyone who needs to work or stay connected while traveling.

One of the standout features of the Acer C210 is its 360-degree hinge, which allows users to easily switch between laptop, tent, tablet, and stand modes. This flexibility not only enhances productivity but also provides a more comfortable experience, whether you are typing, watching videos, or giving presentations. The device boasts a vibrant touchscreen display that offers crisp visuals and responsive touch capabilities, further enhancing the user experience.

Performance-wise, the Acer C210 is powered by Intel processors, delivering efficient performance for various tasks, from web browsing to media consumption and light productivity work. With ample RAM and storage options, users can expect smooth multitasking and enough space for essential files and applications.

The C210 is also equipped with a robust battery life, allowing users to stay productive throughout the day without frequently searching for a power outlet. Its fast-charging feature is an added bonus, ensuring that you can quickly recharge and get back to work in no time.

Connectivity options on the Acer C210 are plentiful, including USB Type-C, USB 3.0 ports, and HDMI, providing versatile options for connecting to external displays and peripherals. Additionally, Wi-Fi and Bluetooth technologies enable seamless connectivity to the internet and other devices, ensuring that you remain connected wherever you are.

In terms of design, the Acer C210 is sleek and modern, featuring a premium build quality that enhances its durability. The backlit keyboard provides a comfortable typing experience, even in low-light environments. The device also integrates advanced security features, including a fingerprint reader, ensuring that your data remains secure.

Overall, the Acer C210 is an innovative and practical solution for those seeking a 2-in-1 device that balances the functionality of a laptop with the portability of a tablet. Its blend of performance, versatility, and design makes it a strong contender in the crowded market of portable computing devices.