POST Error Message

Description/Action

 

 

CMOS battery failed

The CMOS battery is no longer functional.

 

Replace the battery.

 

 

CMOS checksum error - defaults loaded

Checksum of CMOS is incorrect.

 

The computer loads the default configuration settings.

 

This error might indicate that CMOS has become corrupt

 

due to a weak CMOS battery.

 

 

CPU at nnnn

nnnn is the running speed of the microprocessor.

 

 

Press Esc to skip memory test

Pressing Esc skips the full memory test

 

 

HARD DISK INSTALL FAILURE

Cannot find or initialize the hard disk drive controller or

 

the drive.

 

Make sure the hard disk drive is correctly installed.

 

If no hard disk drives are installed, make sure the hard

 

disk drive selection in Setup is set to NONE.

 

 

Keyboard error or no keyboard present

Cannot initialize the keyboard.

 

Make sure the keyboard is properly connected to the

 

computer and that no keys are held pressed during POST.

 

To purposely configure the computer without a keyboard,

 

set the error halt condition in Setup to HALT ON ALL, BUT

 

KEYBOARD. The BIOS then ignores the missing keyboard

 

during POST.

 

 

Memory Test:

This message displays during a full memory test, counting

 

down the memory areas being tested.

 

 

Memory test fail

If POST detects an error during memory testing, additional

 

information appears. This information gives specifics

 

about the type and location of the memory error.

 

 

Press TAB to show POST screen

Pressing the TAB key permits the user to toggle between

 

the default POST display screen and a custom POST

 

display screen.

 

 

Error: Non-System disk or disk error Replace and press

The BIOS was unable to find a suitable boot device.

any key when ready

Make sure the boot drive is properly connected to the

 

 

computer.

 

Make sure you have bootable media.

 

 

Miscellaneous error messages

Message/Symptom

FRU/Action

 

 

Changing display colors

Display/Monitor

 

 

 

Computer will not turn off. See “Hard disk drive boot

1.

Power switch

error” on page 49.

2.

System board

 

 

3.

Riser card, if installed.

 

 

 

Chapter 8. Symptom-to-FRU Index 51

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Lenovo 4223, 4228, 4229 Miscellaneous error messages, Post Error Message Description/Action, Message/Symptom FRU/Action

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.