Dell OptiPlex GX110 Service Manual - Page 55

Qvhuw²d²frs\²ri²wkh - power supply replacement

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If one or more keys are sticking, it may be necessary to replace the keyboard. Does the inspection reveal any problems? Yes. Refer to the parts removal and replacement procedure in Chapters 4, 5, 6, or 7, as appropriate for your system. No. Proceed to the next section, "Observing the Boot Routine." After you have performed an external visual inspection as described in the previous section, you should boot the system and, while the boot routine is running, observe the system for any indications of problems. NOTE: Most of the steps in this procedure require observation of system functions and indications, some of which can occur simultaneously. It may be necessary to reboot the system several times in order to complete all of these steps. To observe problem indications during the boot routine, follow these steps: Does the fan run normally? Yes. Proceed to step 3. No. Troubleshoot the system power supply. Do these indicators flash on and off within approximately 10 seconds after the boot routine starts? Yes. Proceed to step 4. No. Troubleshoot the system power supply. If the troubleshooting procedure indicates that the system power supply is operational, troubleshoot the system board. Basic Troubleshooting 2-3

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Basic Troubleshooting
2-3
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If one or more keys are sticking, it may be necessary to replace the
keyboard.
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Does the inspection reveal any problems?
Yes
.
Refer to the parts removal and replacement procedure in Chapters 4,
5, 6, or 7, as appropriate for your system.
No
.
Proceed to the next section, “Observing the Boot Routine.”
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After you have performed an external visual inspection as described in the pre-
vious section, you should boot the system and, while the boot routine is
running, observe the system for any indications of problems.
NOTE: Most of the steps in this procedure require observation of system func-
tions and indications, some of which can occur simultaneously. It may be
necessary to reboot the system several times in order to complete all of these
steps.
To observe problem indications during the boot routine, follow these steps:
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²LQWR²GULYH²$³²7XUQ²RQ²
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Does the fan run normally?
Yes.
Proceed to step 3.
No.
Troubleshoot the system power supply.
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Do these indicators flash on and off within approximately 10 seconds after
the boot routine starts?
Yes.
Proceed to step 4.
No.
Troubleshoot the system power supply. If the troubleshooting pro-
cedure indicates that the system power supply is operational, troubleshoot
the system board.