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Acer ENTJ75, ENTJ77, ENTJ78, ENTJ76 manual Iii

Models: ENTJ78 ENTJ77 ENTJ76 ENTJ75

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Chapter 4: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Diagnosing problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 System test procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Testing the optical drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Testing the keyboard or auxiliary input device . . . . . . . . . . . . 117 Testing the memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Testing the power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Testing the touchpad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Power-OnSelf-Test (POST) error message . . . . . . . . . . . . . . . . . . . . . 120 Index of error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 No-beep error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Phoenix BIOS beep codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Symptom-to-FRU error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Keyboard and touchpad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Intermittent problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Undetermined problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Chapter 5: Connector locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135

System board layout

136

Top view

136

Bottom view – Discrete model

137

Bottom view – UMA model

138

Chapter 6: FRU (Field-Replaceable Unit) list . . . . . . . . . . . . . . . . . . . . . .139

Introduction

140

Exploded diagram

140

FRU list

142

Appendix A: Test compatible components . . . . . . . . . . . . . . . . . . . . . . . 147

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Microsoft® Windows 7® Compatibility Test . . . . . . . . . . . . . . . . . . . 148

Appendix B: Online support information. . . . . . . . . . . . . . . . . . . . . . . . . 151

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Acer ENTJ75, ENTJ77, ENTJ78, ENTJ76 manual Iii
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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.