CHAPTER 4: Troubleshooting

Phoenix BIOS beep codes

Code

Beeps

POST Routine Description

 

 

 

02h

 

Verify Real Mode

 

 

 

03h

 

Disable Non-Maskable Interrupt (NMI)

 

 

 

04h

 

Get CPU type

 

 

 

06h

 

Initialize system hardware

 

 

 

08h

 

Initialize chipset with initial POST values

 

 

 

09h

 

Set IN POST flag

 

 

 

0Ah

 

Initialize CPU registers

 

 

 

0Bh

 

Enable CPU cache

 

 

 

0Ch

 

Initialize caches to initial POST values

 

 

 

0Eh

 

Initialize I/O component

 

 

 

0Fh

 

Initialize the local bus IDE

 

 

 

10h

 

Initialize Power Management

 

 

 

11h

 

Load alternate registers with initial POST values

 

 

 

12h

 

Restore CPU control word during warm boot

 

 

 

13h

 

Initialize PCI Bus Mastering devices

 

 

 

14h

 

Initialize keyboard controller

 

 

 

16h

1-2-2-3

BIOS ROM checksum

 

 

 

17h

 

Initialize cache before memory autosize

 

 

 

18h

 

8254 timer initialization

 

 

 

1Ah

 

8237 DMA controller initialization

 

 

 

1Ch

 

Reset Programmable Interrupt Controller

 

 

 

20h

1-3-1-1

Test DRAM refresh

 

 

 

22h

1-3-1-3

Test 8742 Keyboard Controller

 

 

 

24h

 

Set ES segment register to 4 GB

 

 

 

26h

 

Enable A20 line

 

 

 

28h

 

Autosize DRAM

 

 

 

29h

 

Initialize POST Memory Manager

 

 

 

2Ah

 

Clear 215 KB base RAM

 

 

 

2Ch

1-3-4-1

RAM failure on address line xxxx

 

 

 

2Eh

1-3-4-3

RAM failure on data bits xxxx of low byte of memory bus

 

 

 

2Fh

 

Enable cache before system BIOS shadow

 

 

 

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Acer ENTJ78, ENTJ77, ENTJ75, ENTJ76 manual Phoenix Bios beep codes, 124, Code Beeps Post Routine Description

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.