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 38.)

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

60ThinkPad G40, G41

Page 64
Image 64
Lenovo G41 manual Intermittent problems, Undetermined problems

G41 specifications

The Lenovo G41 is a noteworthy addition to Lenovo's lineup of laptops, designed to meet the computing needs of both professionals and casual users alike. With its robust features and practical design, the G41 stands out as a reliable choice for everyday tasks.

At the heart of the Lenovo G41 is its powerful processor. Equipped with Intel’s latest generation CPUs, it offers a seamless performance for multitasking and running demanding applications. Users can choose configurations ranging from Intel Core i3 to i7, depending on their performance requirements. This flexibility makes the G41 suitable for both light office work and intensive applications.

The G41 boasts a vibrant display that enhances the overall user experience. With a 14-inch or 15.6-inch screen option, users can enjoy clear visuals and sharp text. The resolution typically reaches up to Full HD, making it ideal for media consumption, whether streaming videos or viewing high-resolution images. Additionally, the anti-glare feature allows users to work comfortably in various lighting conditions.

In terms of memory and storage, the Lenovo G41 supports ample RAM and storage options. With configurations that can reach up to 16GB of RAM, users can expect efficient handling of multiple applications simultaneously. For storage, users can opt for fast SSD drives or traditional HDDs, providing a balance between speed and capacity to suit their needs.

The G41 does not compromise on connectivity either. It includes a variety of ports, such as USB 3.0 and HDMI, ensuring compatibility with modern peripherals and external displays. Additionally, integrated Wi-Fi and Bluetooth capabilities allow users to connect effortlessly to networks and devices.

Durability is another key characteristic of the Lenovo G41. Designed with a sturdy build, it can withstand the rigors of daily use, making it a practical choice for students and professionals on the go. The ergonomic keyboard is comfortable for prolonged typing sessions, enhancing productivity.

In conclusion, the Lenovo G41 combines performance, versatility, and durability, making it an appealing option in the competitive laptop market. Whether for professional use, educational purposes, or casual browsing, the G41 is a reliable companion ready to meet various user demands. With its range of features and technologies, it represents a smart investment for anyone in need of a capable and robust laptop.