Symptom-to-FRU index

Intermittent problems

Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs.

When analyzing an intermittent problem, do the following:

1.Run the diagnostic test for the system board in loop mode at least 10 times.

2.If no error is detected, do not replace any FRUs.

3.If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.

Undetermined problems

If the diagnostic tests did not identify the adapter or device that has failed, if wrong devices are installed, or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects).

Verify that all attached devices are supported by the computer.

Verify that the power supply being used at the time of the failure is operating correctly. (See “Power system checkout” on page 45.)

1.Turn off the computer.

2.Visually check each FRU for damage. Replace any damaged FRU.

3.Remove or disconnect all of the following devices:

a.Non-ThinkPad devices

b.Devices attached to the port replicator

c.Printer, mouse, and other external devices

d.Battery pack

e.Hard disk drive

f.External diskette drive

g.DIMM

h.CD-ROM and diskette drive in the Ultrabay

i.PC Cards

4.Turn on the computer.

5.Determine whether the problem has been solved.

6.If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.

7.If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU):

a.System board

b.LCD assembly

ThinkPad X41 71

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Lenovo X41 manual Intermittent problems, Undetermined problems

X41 specifications

The Lenovo X41, a notable entry in the ThinkPad series, was introduced as a lightweight and portable laptop ideal for business professionals and casual users alike. This device gained recognition for its reliability, innovative features, and robust performance, making it a sought-after option during its time.

One of the primary highlights of the Lenovo X41 is its form factor. Weighing in at just around 3.5 pounds, it epitomizes portability without compromising on functionality. The 12.1-inch XGA display provides a balance between screen real estate and travel-friendly dimensions. This size makes it convenient for users who frequently move between meetings or travel for work.

Powering the X41 is Intel's Centrino technology, which integrates the processor, chipset, and wireless capabilities into a cohesive unit. This not only optimizes performance but also enhances battery life, enabling users to work longer without plugging in. The model typically features a robust Intel Pentium M processor, available in various configurations, giving users options in terms of speed and efficiency.

The design of the X41 adheres to the iconic ThinkPad aesthetic, characterized by its black casing, rugged build, and the famous red TrackPoint mouse in the center of the keyboard. This keyboard is spill-resistant, which adds an extra layer of protection against accidents. Users appreciate the tactile feedback and comfort offered by the keys, making it suitable for extended typing sessions.

In terms of connectivity, the Lenovo X41 is equipped with various ports, including USB, Ethernet, and an optional docking station for enhanced capabilities. Additionally, the laptop includes integrated Wi-Fi for seamless wireless connectivity, an essential feature for modern business environments.

Security is another noteworthy aspect of the Lenovo X41. It typically features a fingerprint reader, a function that enhances user authentication and data protection.

Overall, the Lenovo X41 stands out due to its combination of portability, performance, and essential features tailored for users on the go. Its design emphasizes durability and usability, making it a versatile choice for a range of applications, whether for business professionals, students, or everyday users seeking a reliable and efficient laptop.