Dell 780 Manuel de service

Dell™ OptiPlex™ 780 Service ManualDesktop ComputerWorking on Your ComputerRemoving and Replacing PartsSpecificationsDiagnosticsSystem SetupNotes, Caut

Diagnostic lights four lights. For more information, seeDiagnostics.Back of the computerLink integrity light on integratednetwork adaptergreen — a goo

Mini-towerDesktopSmall form factor43.30 cm (17.00 inches)35.30 cm (13.90 inches)34.00 cm (13.40 inches)WeightMini-towerDesktopSmall form factor 11.70

Back to Contents PageDiagnosticsDell™ OptiPlex™ 780 Service Manual Dell Diagnostics Power Button Light Codes Beep Codes Diagnostic Lights Dell Dia

4. Select the Boot from CD-ROM option from the menu that appears and press <Enter>. 5. Type 1 to start the menu and press <Enter> to pro

Power is off, light is blank.BlinkingAmberInitial state of light at power up.Indicates system has power, but the POWER_GOOD signal is not yet active.I

3-4-3 Search for video ROM failure4-2-1 No timer tick4-2-2 Shutdown failure4-2-3 Gate A20 failure4-2-4 Unexpected interrupt in protected mode4-3-1 Mem

No memory modulesare detected.If two or more memory modules are installed, remove the modules, thenreinstall one module and restart the computer. If t

Back to Contents PageSystem SetupDell™ OptiPlex™ 780 Service Manual—Mini-Tower, Desktop, and Small Form Factor Boot Menu Navigation Keystrokes Ente

Memory information: Displays Installed Memory, Usable Memory, Memory Speed, Memory Channel Mode, Memory Technology,DIMM_1 Size, DIMM_2 Size, DIMM_3 Si

The Operating System may allocate resources even though the setting is disabled.Serial Port #2 Identifies and defines the serial port settings. You ca

You can set the TPM security to:Deactivate (default)ActivateClearNOTE: When TPM Security is set to Clear the system setup program clears the user info

The default IP address is 255.255.255.255NOTE: You must set the Integrated NIC to Enable with ImageServer to set the ImageServer IP.ImageServer Port S

Back to Contents PageCoverDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information that shi

3. Tilt the cover outward from the top, and then remove the cover from the computer.Replacing the CoverTo replace the cover, perform the steps above

Back to Contents PagePrimary Hard DriveDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety informa

6. Press in on the blue securing tabs on each side of the drive, and then slide the drive towards the back of the computer.

7. Lift the hard drive and remove it from the system.

Replacing the Primary Hard DriveTo replace the hard drive, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageFloppy DriveDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information t

4. Pull up on the drive-release latch, and then slide the floppy drive towards the back of the computer.

Working on Your ComputerDell™ OptiPlex™ 780 Service Manual—Desktop Before Working Inside Your Computer Recommended Tools Turning Off Your Computer Aft

5. Lift the floppy drive up and away from the computer.

Replacing the Floppy DriveTo replace the floppy drive, peform the above steps in reverse order.Back to Contents Page

Back to Contents PageExpansion Card(s)Dell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety informat

Replacing the Expansion Card(s)To replace the expansion card, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageMemoryDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information that sh

Replacing the Memory Module(s)To replace the memory module(s), perform the above steps in reverse order.Back to Contents Page

Back to Contents PagePower SupplyDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information t

7. Release the processor power connector cable from routing guides under the system board.

8. Remove the screws that secure the power supply to the back of the chassis.

9. Press the power supply release latch at the bottom of the chassis and then slide the power supply towards the front ofthe computer.

The procedures in this document may require the following tools:Small flat-blade screwdriverPhillips screwdriverSmall plastic scribeFlash BIOS update

10. Lift the power supply up and away from the computer.

Replacing the Power SupplyTo replace the power supply, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageFanDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information that shipp

4. Lift the fan and remove it from the computer.

Replacing the FanTo replace the fan, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageSystem BoardDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information t

6. Disconnect the fan power cable.7. Disconnect the main power cable from the system board.

8. Disconnect the IO-panel cable.

9. Disconnect the optical-drive data cable from the system board.

10. Disconnect the hard-drive data cable from the system board.

Back to Contents PageRemoving and Replacing PartsDell™ OptiPlex™ 780 Service Manual—Desktop Cover Primary Hard Drive Floppy Drive (Optional) Expansion

11. Disconnect the processor power cable.

12. Remove the screws that secure the system board to the computer chassis.

13. Remove the heat sink assembly bracket.

14. To remove the system board, slide the system board towards the back of the computer and lift the system board upand away from the computer.

Replacing the System BoardTo replace the system board, perform the above the steps in reverse order.Back to Contents Page

Back to Contents PageOptical DriveDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information

4. Lift the drive-release latch, and then slide the drive towards the back of the computer.

5. Lift and remove the drive from the computer.

Replacing the Optical DriveTo replace the optical drive, perform the steps above in reverse order.Back to Contents Page

Back to Contents PageSecondary Hard Drive (Optional)Dell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the s

Back to Contents PageTechnical Specifications Processor Memory Expansion Bus Video System Information Cards Drives External Connectors Controls a

4. Disconnect the hard-drive power cable.5. Pull up on the release latch, and then slide the hard drive towards the back of the computer.

6. Lift the hard drive and remove it from the computer.

Replacing the Secondary Hard DriveTo replace the secondary hard drive, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageRiser CageDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information tha

4. Gently pull the riser-cage handle and lift the riser cage up and away from the computer.

5. On the riser cage, rotate the card retention latch upward.

6. Gently pull the card release latch on the riser board away from the card and ease the card out of its connector.

Replacing the Riser CageTo replace the riser cage, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageStandard Back PlateDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety inform

NetworkIntegrated Intel integrated network interface cardcapable of 10/100/1000 Mb/scommunicationSystem Information Chipset Intel® Q45 Express chipset

Back to Contents PageHeat Sink and ProcessorDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety in

3. Rotate the heat sink upwards.4. Lift the heat sink and remove it from the computer.

5. Open the processor cover by sliding the release lever from under the cover latch on the socket. Then, pull the leverback to release the processor

6. Lift the processor cover.

7. Remove the processor from the computer.

CAUTION: When replacing the processor, do not touch any of the pins inside the socket or allow anyobjects to fall on the pins in the socket.Replacing

Back to Contents PageCoin-Cell BatteryDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety informat

Replacing the Coin-Cell BatteryTo replace the coin-cell battery, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageIO PanelDell™ OptiPlex™ 780 Service Manual—DesktopWARNING: Before working inside your computer, read the safety information that

4. Gently rotate the IO panel away from the computer and then remove it from the computer.

Small form factor one low profile cardNOTE: The PCI Express x16 slot is disabled when a display is connected to theintegrated video connector.Drives E

Replacing the IO PanelTo replace the IO panel, perform the above steps in reverse order.Back to Contents Page

DesktopSmall form factortwo 120-pin connectorsone 120-pin connector PCI Express x1Mini-towerDesktopSmall form factordata width (maximum) — one PCI Exp