slots 66

 

using

 

physical specifications

29

passwords

37

Power-On, Password

38

Setup Utility

37

R

 

 

 

 

 

 

 

V

rear connectors

56

 

 

 

 

viewing and changing settings 37

rear fan assembly, replacing

81

 

 

recovering

 

 

 

 

 

 

 

 

from a POST/BIOS update failure

106

recovery

 

 

 

 

 

 

 

 

boot-block

106

 

 

 

 

 

removing computer cover

64

 

 

replacing

 

 

 

 

 

 

 

 

battery

77, 102

 

 

 

 

 

card reader

75

 

 

 

 

 

hard disk drive

83

 

 

 

 

hard disk drive enablement module

87

heat sink and fan assembly

78

 

 

S

 

 

 

 

 

 

 

 

security

 

 

 

 

 

 

 

 

enabling or disabling

39

 

 

 

selecting

 

 

 

 

 

 

 

 

startup device

39

 

 

 

 

temporary startup device

40

 

 

Self-service CRUs

56

 

 

 

 

setting

 

 

 

 

 

 

 

 

password

 

38

 

 

 

 

 

 

settings

 

 

 

 

 

 

 

 

changing

 

37

 

 

 

 

 

 

viewing

37

 

 

 

 

 

 

Setup Utility

 

37

 

 

 

 

 

 

Setup Utility program, starting

37

 

 

Setup Utility, exiting

41

 

 

 

 

speed, memory

107

 

 

 

 

starting the Setup Utility program

37

 

startup device

39

 

 

 

 

 

sequence, changing

40

 

 

 

temporary, selecting

40

 

 

 

static-sensitive devices, handling

63

 

system board

 

 

 

 

 

 

 

locating parts

58

 

 

 

 

 

locations

 

58

 

 

 

 

 

 

memory module

69

 

 

 

 

T

 

 

 

 

 

 

 

 

temporary startup device

40

 

 

 

the BIOS, updating (flashing)

105–106

trademarks

110

 

 

 

 

 

 

U

 

 

 

 

 

 

 

 

updating

 

 

 

 

 

 

 

 

(flashing) the BIOS

105

 

 

 

updating (flashing) the BIOS

106

 

 

112ThinkStation Hardware Maintenance Manual

Page 118
Image 118
Lenovo 4228, 4223, 4229 manual Replacing Battery

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.