CHAPTER 4: Troubleshooting

 

 

 

Code

Beeps

POST Routine Description

 

 

 

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

 

 

 

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

 

 

 

126

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Acer ENTJ77, ENTJ75, ENTJ78, ENTJ76 manual 126

ENTJ78, ENTJ77, ENTJ76, ENTJ75 specifications

The Acer ENTJ series, comprising models ENTJ75, ENTJ76, ENTJ77, and ENTJ78, represents a significant leap in technology and performance within the Acer family of products. These models are designed to cater to a range of users, from professionals to gamers, featuring advanced specifications, innovative technologies, and a commitment to enhancing user experience.

Starting with the ENTJ75, this model showcases a sleek design coupled with powerful processing capabilities. Equipped with the latest Intel or AMD processors, the ENTJ75 ensures seamless multitasking and accelerated performance. The incorporation of a high-refresh-rate display enhances visual fluidity, making it ideal for both work and entertainment purposes. With options for high-resolution displays, users can expect stunning visuals that bring content to life.

The ENTJ76 builds upon the strengths of its predecessor by incorporating advanced cooling technologies. Acer's thermal management ensures that the device remains cool under pressure, maintaining optimal performance during intense gaming sessions or heavy software usage. This model also expands on connectivity options, featuring multiple USB ports, HDMI outputs, and Wi-Fi 6 for faster internet speeds and better network efficiency.

Model ENTJ77 introduces enhanced graphics capabilities, including dedicated graphics cards that enable users to dive into gaming or graphic design without compromise. The high-quality sound system further elevates the multimedia experience, providing immersive audio that complements the exceptional visuals.

Meanwhile, the ENTJ78 is the flagship model of the series, pushing boundaries with cutting-edge technologies such as 5G connectivity, allowing for lightning-fast internet access. This model also prioritizes security, incorporating biometric authentication methods that safeguard user data effectively. The ENTJ78 aims to be the all-in-one solution for productivity and entertainment.

Across the ENTJ series, Acer has maintained a focus on user-centric designs. Features such as ergonomic keyboards, customizable RGB lighting, and lightweight chassis offer convenience and style. Battery life is another priority, with all models being equipped to support extended use without frequent charging.

In summary, the Acer ENTJ75, ENTJ76, ENTJ77, and ENTJ78 blend performance, technology, and user experience into a cohesive product lineup that caters to a diverse audience. Whether for professional applications, gaming, or multimedia consumption, these models are designed to meet the demands of today's tech-savvy users.