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 52.)

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 docking station or the port replicator

c.Printer, mouse, and other external devices

d.Battery pack

e.Hard disk drive

f.External diskette drive or optical drive

g.DIMM

h.Optical disk or diskette in the internal drive

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

Related service information

69

Page 77
Image 77
Lenovo 2717ASU manual Intermittent problems, Undetermined problems

2717ASU specifications

The Lenovo 2717ASU is a remarkable all-in-one desktop computer that combines performance with a sleek design, making it an ideal choice for both personal and professional use. This model features a powerful AMD Ryzen processor, ensuring smooth multitasking and efficient performance for a variety of applications. Users can rely on its robust computing capabilities whether they are working on spreadsheets, editing videos, or enjoying multimedia content.

One of the standout features of the Lenovo 2717ASU is its vibrant 27-inch Full HD display. With a resolution of 1920 x 1080 pixels, the screen delivers clear, sharp visuals with vivid colors, which enhances the overall user experience. The large display is perfect for entertainment, gaming, and productivity. The device also includes IPS technology, providing wide viewing angles and consistent color accuracy, making it suitable for collaborative work environments.

In terms of storage, the Lenovo 2717ASU offers ample space with options for solid-state drives (SSD) and traditional hard disk drives (HDD). The SSD variant provides faster boot-up times and improved application loading speeds, resulting in an overall boost to system performance. Coupled with generous amounts of RAM, users can handle multiple applications simultaneously without experiencing slowdowns.

Connectivity is another area where the Lenovo 2717ASU excels. The device features various ports, including USB Type-C, USB 3.0, HDMI, and an Ethernet port, allowing users to connect a wide array of peripherals and accessories. Furthermore, built-in Wi-Fi and Bluetooth capabilities enable seamless wireless connectivity for internet access and device pairing.

The Lenovo 2717ASU is designed with user convenience in mind. Its sleek, minimalist design helps save desk space while maintaining a modern aesthetic. The product is also equipped with a front-facing HD webcam and microphone, making it ideal for video conferencing and online meetings, which have become increasingly important in today’s working environment.

Overall, the Lenovo 2717ASU stands out as a versatile all-in-one desktop computer that caters to a variety of user needs. With its powerful processing capabilities, stunning display, and comprehensive connectivity options, it is an excellent choice for both home and office setups. Whether one is looking to enhance productivity, enjoy entertainment, or engage in creative projects, the Lenovo 2717ASU delivers an impressive performance that meets and exceeds expectations.