Lenovo C220, Руководство по техническому обслуживанию аппаратной части

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Chapter 4. General Checkout
Attention: The drives in the computer you are servicing might have been rearranged or the drive startup
sequence changed. Be extremely careful during write operations such as copying, saving, or formatting.
Data or programs can be overwritten if you select an incorrect drive.
General error messages appear if a problem or con ict is found by an application program, the operating
system, or both. For an explanation of these messages, refer to the information supplied with that software
package.
Use the following procedure to help determine the cause of the problem:
1. Power-off the computer and all external devices.
2. Check all cables and power cords.
3. Set all display controls to the middle position.
4. Power-on all external devices.
5. Power-on the computer.
Look for displayed error codes
Look for readable instructions or a main menu on the display.
If you did not receive the correct response, proceed to step 6.
If you do receive the correct response, proceed to step 7.
6. Look at the following conditions and follow the instructions:
If the computer displays a POST error, go to POST error codes .
If the computer hangs and no error is displayed, continue at step 7.
7. If you cannot continue, replace the last device tested.
Problem determination tips
Due to the variety of hardware and software combinations that can be encountered, use the following
information to assist you in problem determination. If possible, have this information available when
requesting assistance from Service Support and Engineering functions.
Machine type and model
Processor or hard disk upgrades
Failure symptom
Do diagnostics indicate a failure?
What, when, where, single, or multiple systems?
Is the failure repeatable?
Has this con guration ever worked?
If it has been working, what changes were made prior to it failing?
Is this the original reported failure?
Diagnostics version
Type and version level
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