
Chapter 4
Troubleshooting
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test this model.
1.Duplicate symptom and obtain the failing symptoms in as much detail as possible.
2.Distinguish symptom. Verify the symptoms by attempting to
3.Disassemble and assemble the unit without any power sources.
4.If any problem occurs, you can perform visual inspection before you fellow this chapter’s instructions. You can check the following:
power cords are properly connected and secured; there are no obvious shorts or opens;
there are no obviously burned or heated components; all components appear normal.
5.Use the following table with the verified symptom to determine which page to go to.
Symptoms (Verified) | Go To |
|
|
Power failure. (The power indicator does not go | “Power System Check” on page 77. |
on or stay on.) |
|
|
|
POST does not complete. No beep or error | |
codes are indicated. | page 79 |
| “Undetermined Problems” on page 91 |
|
|
POST detects an error and displayed messages | “Error Message List” on page 80 |
on screen. |
|
|
|
Other symptoms (i.e. LCD display problems or | |
others). | page 79 |
|
|
Symptoms cannot be | Use the |
problems). | |
| page 79 |
| “Intermittent Problems” on page 90 |
| “Undetermined Problems” on page 91 |
|
|
Chapter 4 | 75 |