Dell OptiPlex 320 User Manual download pdf (Page 124)

Network Problems

Fill out the Diagnostics Checklist as you complete these checks.



Power Problems

Fill out the Diagnostics Checklist as you complete these checks.



Testthemouse— Connect a properly working mouse to the computer, and try using the mouse. If the new mouse works, the original

mouse is faulty.



Checkthemousesettings— 

1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.

2. Click Mouse.

3. Try adjusting the settings.

If you are using a PS/2 mouse

1. Enter system setup and ensure that the Mouse Port option is set to On (see System Setup).

2. Exit system setup and restart the computer.



Reinstallthemousedriver— See Drivers.



RuntheDellDiagnostics— See Dell Diagnostics.



Checkforsoftwareandhardwareconflicts— See Resolving Software and Hardware Incompatibilities.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.



Checkthenetworkcableconnector— Ensure that the network cable is firmly inserted into both the network connector on the back of the

computer and the network jack.



Checkthenetworklightsonthefrontorbackofthecomputerdependingonsystemchassistype.— No connection speed light indicates

that no network communication exists. Replace the network cable.



Restart the computer and log on to the network again



Checkyournetworksettings— Contact your network administrator or the person who set up your network to verify that your network

settings are correct and that the network is functioning.



Checkforsoftwareandhardwareconflicts— See Resolving Software and Hardware Incompatibilities.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.



Ifthepowerlightisgreenandthecomputerisnotresponding— See Diagnostic Lights.



Ifthepowerlightisblinkinggreen— The computer is in standby mode. Press a key on the keyboard or move the mouse to resume

normal operation.



Ifthepowerlightisoff— The computer is either turned off or is not receiving power.

l Reseat the power cable into both the power connector on the back of the computer and the electrical outlet.

l If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and that the power strip

is turned on. Also bypass power protection devices, power strips, and power extension cables to verify that the computer turns on

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Dell OptiPlex 320 User Manual Page 124

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