Installing or replacing a hard disk drive . . .

83

Installing or replacing a hard disk drive

 

enablement module

87

Replacing the front audio and USB

 

assembly

88

Replacing the internal speaker

89

Installing or replacing the microprocessor . .

90

Replacing the system board

99

Replacing the power supply assembly . . .

102

Completing the parts replacement

104

Chapter 11. Additional service

 

information

105

Security features

105

Hardware-controlled passwords

105

Operating system password

105

Vital product data

105

BIOS levels

105

Updating (flashing) the BIOS

105

Updating (flashing) the BIOS from a disc. . . 105

Updating (flashing) the BIOS from your

 

operating system

106

Recovering from a POST/BIOS update failure . .

106

Power management

107

Automatic configuration and power interface

 

(ACPI) BIOS

107

Automatic Power-On features

107

System memory speed

107

Appendix A. Notices

109

Television output notice

110

European conformance CE mark

110

Trademarks

110

Index

111

ivThinkStation Hardware Maintenance Manual

Page 6
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Lenovo 4223, 4228, 4229 manual Appendix A. Notices 109

4229, 4223, 4228 specifications

Lenovo has long been recognized for its commitment to producing high-quality computing solutions, and the ThinkPad line is no exception. Among its various models, the Lenovo ThinkPad series 4228, 4223, and 4229 stand out for their robust features and reliable performance, making them ideal choices for business and professional use.

The Lenovo ThinkPad 4228 series is engineered with a focus on durability and performance. One of its key features is the powerful Intel Core processor range, which ensures that users can manage demanding applications and multitask efficiently. Alongside this, the device typically comes equipped with ample RAM, providing speed and responsiveness that enhances productivity.

Moving to the ThinkPad 4223, it streamlines user experience with advanced connectivity options. The inclusion of multiple USB ports, HDMI, and Ethernet capabilities allows for seamless integration with various devices and networks. The 4223 model often houses a backlit keyboard, enabling users to work effortlessly in low-light environments. This model puts a strong emphasis on portability, making it a reliable companion for professionals on the move.

The ThinkPad 4229 takes connectivity a step further by offering options like Wi-Fi 6 and Bluetooth, ensuring fast and stable connections whether in the office or on the go. This model is often equipped with a higher resolution display, contributing to a better viewing experience for video conferencing and presentations. Its extended battery life is a notable feature, allowing users to remain productive without the constant need for recharging.

All three models in the 422x series boast Lenovo’s robust security features, including fingerprint readers and TPM (Trusted Platform Module), which safeguard sensitive data against unauthorized access. Furthermore, the reputation of Lenovo ThinkPads for their exceptional keyboard layout ensures that users can type comfortably over extended periods, reducing strain and increasing efficiency.

In summary, the Lenovo ThinkPad 4228, 4223, and 4229 models represent a blend of power, durability, and user-friendly design. With their focus on connectivity, performance, and security, these laptops cater perfectly to the needs of professionals and businesses, confirming Lenovo's status as a leading manufacturer in the world of computing technology. Whether you need a rugged workhorse for heavy tasks or a portable device for meetings, the ThinkPad series provides versatile solutions to meet any requirement.