![](/images/new-backgrounds/1212812/21281281x1.webp)
Troubleshooting
Flowchart 2.5—No Power, Part 4
Continued from
“Flowchart
Part 3.”
Open
computer.
Y
Loose or damaged parts?
N
Close
computer and
retest.
Reseat loose
components and
boards and
replace damaged
items.
Replace the following items (if applicable). Check
Ncomputer operation after each replacement:
1.Internal
2.Internal AC adapter
| Power on? | 3. | Processor board* | |
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| 4. | System board* | |
Y |
| *NOTE: Replace these items as a set to prevent | ||
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| shorting out among components. | |
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| Done |
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Maintenance and Service Guide |