Symptom-to-FRU index

This section contains following information:

v“Numeric error codes”

v“Error messages” on page 66

v“Beep symptoms” on page 67

v“No-beep symptoms” on page 67

v“LCD-related symptoms” on page 68

v“Intermittent problems” on page 69

v“Undetermined problems” on page 69

The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type.

Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU.

This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next.

A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number.

If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems” on page 69.

Note:

For a device not supported by diagnostic codes in the ThinkPad Notebooks, see the manual for that device.

Numeric error codes

Table 2. Numeric error codes

Symptom or error

FRU or action, in sequence

 

 

0175

System board.

Bad CRC1, stop POST task—The EEPROM

 

 

checksum is not correct.

 

 

 

 

 

0176

1.

Run BIOS Setup Utility, and save the

System Security—The system has been

 

current setting by pressing F10.

tampered with.

2.

System board.

 

 

0177

System board.

Bad SVP data, stop POST task—The

 

 

checksum of the supervisor password in the

 

 

EEPROM is not correct.

 

 

 

 

 

0182

1.

Run BIOS Setup Utility. Press F9, and

Bad CRC2. Enter BIOS Setup and load Setup

 

Enter to load the default setting. Then

defaults.—The checksum of the CRS2 setting

 

save the current setting by pressing F10.

in the EEPROM is not correct.

2.

System board.

 

 

 

0185

1.

Run BIOS Setup Utility. Press F9, and

Bad startup sequence settings. Enter BIOS

 

Enter to load the default setting. Then

Setup and load Setup defaults.

 

save the current setting by pressing F10.

 

 

 

62ThinkPad T400 and R400 Hardware Maintenance Manual

Page 70
Image 70
Lenovo R400 manual Symptom-to-FRU index, Numeric error codes

R400 specifications

The Lenovo R400 is a business laptop that was designed for professionals seeking a balance of performance, durability, and mobility. It is part of Lenovo's renowned ThinkPad series, which is known for its robust build quality and user-centric features. The R400 combines an array of technologies and characteristics that cater specifically to the demands of the modern workplace.

One of the standout features of the Lenovo R400 is its powerful processor options. Depending on the configuration, it can be equipped with Intel Core 2 Duo processors, which provide efficient multitasking capabilities and commendable performance for typical business applications. This ensures that users can run multiple applications seamlessly, whether it’s for data analysis, presentations, or video conferencing.

In terms of design, the R400 maintains the classic ThinkPad aesthetic with a lightweight chassis that makes it portable for professionals on the go. It typically weighs around 5.2 pounds, making it convenient for travel while still offering a sturdy construction that can withstand daily use. The spill-resistant keyboard is another practical characteristic, enabling users to work without worrying about minor accidents. The keyboard itself is celebrated for its comfortable layout and tactile feedback, ideal for prolonged typing sessions.

The display is another critical aspect of the R400. It generally features a 14.1-inch widescreen model, providing adequate screen real estate for productivity tasks. With a resolution of 1440 x 900, the screen delivers crisp visuals and vibrant colors, enhancing the viewing experience for both presentations and media consumption.

Connectivity is robust, with multiple USB ports, Ethernet, and optional Bluetooth capabilities that facilitate seamless communication and file transfers. The presence of both VGA and display port outputs makes it easy to connect to projectors or external monitors, an essential feature for professional presentations.

Security features also play a crucial role in the R400's design. It typically offers features like a fingerprint reader, a Trusted Platform Module (TPM) for data encryption, and a robust BIOS that helps safeguard sensitive information, which is critical for professionals handling confidential data.

In summary, the Lenovo R400 stands out as a reliable business laptop, blending performance, durability, and features tailored to meet the needs of the modern workforce. Its powerful processing capabilities, user-friendly design, and robust security measures make it an attractive choice for professionals requiring a dependable and efficient mobile computing solution.