Dell 960 manual Using the Hardware Troubleshooter, Tips, Power Problems

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Troubleshooting Tips

Dell™ Optiplex™ 960 Mini Tower/Desktop/Small Form Factor Service Manual

Using the Hardware Troubleshooter

Tips

CAUTION: Always unplug your computer from the electrical outlet before opening the cover.

NOTE: For detailed troubleshooting information, including responding to system messages, see your Service Manual on support.dell.com.

Using the Hardware Troubleshooter

1.Click the Windows Vista Start button , and click Help and Support.

2.Type hardware troubleshooter in the search field and press <Enter> to start the search.

3.In the search results, select the option that best describes the problem and follow the remaining troubleshooting steps.

Tips

If a device does not work, ensure that the device is properly connected.

If you added or removed a part before the problem started, review the installation procedures and ensure that the part is correctly installed.

If an error message appears on the screen, write down the exact message. This message may help support personnel to diagnose and fix the problem

(s).

If an error message occurs in a program, see the program documentation.

Power Problems

CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see www.dell.com/regulatory_compliance.

The diagnostic lights on the front of the computer along with the status of the power button indicate the potential problem with the system. Consult the following table in case of a power problem.

NOTE: The diagnostic lights will blink when the power button is amber or off, and will not when it is blue. This has no other significance.

Light Pattern

Problem Description

Suggested Resolution

 

 

 

 

 

The computer is either turned

Reseat the power cable in the power connector on the back of the computer and the electrical

 

off or not receiving power.

 

outlet.

 

 

Bypass power strips, power extension cables, and other power protection devices to verify that

 

 

 

the computer turns on properly.

 

 

Ensure that any power strips being used are plugged into an electrical outlet and are turned on.

 

 

Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

 

 

Ensure that the main power cable and front panel cable are securely connected to the system

Off

 

 

board.

 

 

 

 

 

 

 

 

A possible motherboard failure

Unplug the computer. Allow one minute for the power to drain. Plug the computer into a working

 

has occurred.

 

electrical outlet and press the power button.

 

 

If the problem persists, contact Dell (see Contacting Dell).

Off

 

 

 

 

 

 

 

 

A possible motherboard,

1.

Power off computer, leaving the computer plugged in. Press and hold the power supply test button

 

power supply, or peripheral

 

on the rear of the power supply unit. If the LED next to the switch illuminates, the problem may be

 

failure has occurred.

 

with your motherboard. Contact Dell (see Contacting Dell).

 

 

2.

If the LED next to the switch does not illuminate, disconnect all internal and external peripherals,

 

 

 

and press and hold the power supply test button.If it illuminates, there could be a problem with a

 

 

 

peripheral. Contact Dell (see Contacting Dell).

 

 

3.

If the LED still does not illuminate, remove the PSU connections from the motherboard, then press

Blinking Amber

 

 

and hold the power supply button. If it illuminates, there could be a problem with the motherboard.

 

 

Contact Dell (see Contacting Dell).

 

 

 

Image 139
Contents Page Replacing the Battery BatteryPerform the procedure After Working on Your Computer Contacting Dell Inside View of Your Computer Desktop ComputerDesktop Computer Cards Installing a PCI CardPCI and PCIe Cards Page Page Removing a PCI Card Installing a PCI Card in the Riser-Card Cage Page Removing a PCI Card From the Riser-Card Cage Perform the procedure in Before Working on Your ComputerPerform the procedure After Working on Your Computer Internal Wireless Card Installation Installing a Second External Serial Port Internal Wireless Card RemovalResetting the Chassis Intrusion Detector Chassis Intrusion SwitchRemoving the Chassis Intrusion Switch Replacing the Chassis Intrusion SwitchSave your Bios settings and exit system setup Removing the Desktop Computer Cover Desktop Computer CoverReplacing the Desktop Computer Cover ALERT! Cover was previously removed Replacing the Heatsink Assembly Removing the Heatsink AssemblyProcessor Removing the Processor Installing the ProcessorPerform the procedure After Working on Your Computer Remove and Replace the Fan and Shroud Assembly Drives General Installation Guidelines for Sata DevicesConnecting Drive Cables Data Interface ConnectorsRemoving Drive Bay Inserts Power Cable ConnectorsConnecting and Disconnecting Drive Cables Drive Bay InsertsReplacing Drive Bay Inserts Optical DriveRemoving an Optical Drive Installing an Optical Drive Floppy Drive Installing a Floppy DriveRemoving a Floppy Drive Media Card Reader Removing a Media Card Reader Installing a Media Card ReaderHard Drive Removing the Primary Hard Drive Replacing the Primary Hard Drive Page Removing the Secondary Hard Drive Page Installing a Secondary Hard Drive Page Page Perform the procedure After Working on Your Computer Removing the I/O Assembly AssemblyReplacing the I/O Assembly Perform the procedure After Working on Your Computer Replacing the Power Supply Power SupplyDC Power Connector P1 DC Power ConnectorsDC Power Connector P4 DC Power Connector P2DC Power Connector P5 and P6 Internal Speaker Installing an Internal SpeakerRemoving an Internal Speaker Perform the procedure Before Working on Your Computer DIMM4 System Board ComponentsDDR2 Memory Overview Addressing Memory ConfigurationsInstalling Memory Removing Memory Mini Tower Computer Installing a PCI or PCIe Card Page Removing a PCI or PCIe Card FPerform the procedure After Working on Your ComputerInternal Wireless Card Installation Internal Wireless Card Removal Chassis Intrusion Switch Save your Bios settings and exit system setup Removing the Mini Tower Computer Cover Mini Tower Computer CoverReplacing the Mini Tower Computer Cover ALERT! Cover was previously removed Processor Removing the Processor FPerform the procedure Before Working on Your Computer Remove the Fan AssemblyReplacing the Fan Assembly Drives Removing a Hard Drive Perform the procedure Before Working on Your Computer Page Replacing a Hard Drive Page Perform the procedure After Working on Your Computer Replace the Drive Bezel Remove the Drive BezelRemoving the Floppy Drive Replacing or Installing the Floppy DriveFPerform the procedure After Working on Your Computer Removing the Media Card Reader Installing the Media Card ReaderOptical Drive Replacing or Installing an Optical Drive FPerform the procedure After Working on Your Computer Assembly O assembly Securing screw O assembly cable connectors Replace the Bezel Remove the BezelPage Power Supply V12P0DIG White +3.3 VDC Orange +3.3VDC/SE 12 VDC Blue DC Power Connector P7 DC Power Connectors P3, P5, P8, and P9Internal Speaker Perform the procedure Before Working on Your Computer System Board Components Cards Perform the procedure After Working on Your Computer Removing a PCI Card PCIe and DVI Cards Installing a PCIe x16 Card or DVI CardRemoving a PCIe x16 Card or DVI Card Internal wireless card is an optional device Perform the procedure Before Working on Your Computer Internal Wireless Card Removal Chassis Intrusion Switch Back to Contents Removing the Small Form Factor Computer Cover Small Form Factor Computer CoverReplacing the Small Form Factor Computer Cover ALERT! Cover was previously removed Processor Installing the Processor Page Remove and Replace the Fan and Shroud Assembly Page `Drives Data interface cable connector Sata interface connector Removing the Hard Drive and Shroud Assembly Removing the Hard Drive Replacing a Hard Drive Page Replacing the Hard Drive and Shroud Assembly Optical Drive Installing an Optical Drive Floppy Drive Installing a Floppy Drive Media Card Reader Replacing or Installing a Media Card Reader Perform the procedure After Working on Your Computer Replacing the Bezel Remove the BezelAssembly Perform the procedure After Working on Your Computer Power Supply VCC +5 Red Thermal Sensor P5 DC Power Connector P6 DC Power Connector P3+5VDC Internal Speaker Perform the procedure Before Working on Your Computer Fancpu Small Form Factor Computer Small Form Factor Computer Desktop System Board Screws Mini Tower System Board ScrewsSmall Form Factor System Board Screws Mini Tower Computer Back to Contents Power Problems Using the Hardware TroubleshooterTips Steady Amber Steady Blue Program stops responding Memory ProblemsLockups and Software Problems Computer does not start upProgram crashes repeatedly Dell Technical Update Service Dell DiagnosticsOther software problems Starting the Dell Diagnostics From Your Hard DriveInsert the Drivers and Utilities media Before Working on Your Computer Recommended ToolsTurning Off Your Computer After Working on Your Computer
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960 specifications

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