Dell OptiPlex 780 (Late 2009) Wartungshandbuch

Dell™ OptiPlex™ 780 Service ManualMini-Tower ComputerWorking on Your ComputerRemoving and Replacing PartsSpecificationsDiagnosticsSystem SetupNotes, C

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—Mini-TowerWARNING: Before working inside your computer, read the safety information that

4. Remove the system cover.

Replacing the CoverTo replace the cover, perform the above steps in reverse order.Back to Contents Page

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

4. Remove the coin-cell battery from the system board.

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

Back to Contents PageOptical DriveDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety informati

4. Disconnect the SATA cable from the optical drive.5. Slide the drive release latch toward the base of the system and hold.

Working on Your ComputerDell™ OptiPlex™ 780 Service Manual Before Working Inside Your Computer Recommended Tools Turning Off Your Computer After W

6. Slide the optical drive out of the system.

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

Back to Contents PageVideo CardDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety information

4. Lift the expansion card up and out of the expansion slot.

Replacing the Video CardTo replace the video card, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageHard DriveDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety information

5. Press in on the blue release tabs on each side of the hard drive.

6. Slide the hard drive out of the computer.

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

Back to Contents PagePower SupplyDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety informatio

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

4. Disconnect the optical-drive power cable.

5. Disconnect the processor power cable from the system board.6. Disconnect the main power cable from the system board.

7. Remove the IO-panel data cable from the cable routing at base of power supply.

8. Remove any data cables from the cable routing at the base of the power supply.

9. Press the release latch that secures the power supply to the chassis.

10. Slide the power supply towards the front of the computer and 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 PageProcessorDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety information t

4. Remove the processor from the system board.

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 PageRemoving and Replacing PartsDell™ OptiPlex™ 780 Service Manual—Mini-Tower Cover Coin-Cell Battery Optical Drive Video Card H

Back to Contents PageDrive CoverDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety information

Replacing the Drive CoverTo replace the drive cover, perform the above steps in reverse order.Back to Contents Page

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

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 PageFloppy DriveDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety informatio

6. Slide the drive release latch toward the base of the system and hold.

7. Slide the floppy drive out of the system.

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

Back to Contents PageSystem FanDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety information

4. Disconnect the processor-fan power cable.

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

5. Pull up on the processor retention tab that is closest to the top of the computer.

6. Press the processor fan retention tab that is closest to the base of the computer.

7. Slide the processor fan towards the back of the computer.

8. Remove the processor fan from the computer.

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

Back to Contents PageIO PanelDell™ OptiPlex™ 780 Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety information th

4. Remove the one screw securing the IO panel to the front of the system.

5. Press the retention latch to release the IO panel.

6. Tilt the IO panel toward the back of the system.

7. Lift the IO panel out of the slot.

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

8. Disconnect the IO panel data cable.

9. Remove the IO panel.

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

Back to Contents PageHeat SinkDell™ OptiPlex™ 780 Service Manual–Mini-TowerWARNING: Before working inside your computer, read the safety information t

4. Loosen the two captive screws that secure the heat sink to the system board.

5. Pivot the heat sink toward the back of the computer.

Replacing the Heat SinkTo replace the heat sink, perform the above steps in reverse order.Back to Contents Page

Back to Contents PageSystem BoardDell™ OptiPlex™ Service Manual—Mini-TowerWARNING: Before working inside your computer, read the safety information th

7. Disconnect the main system board power cable.

8. Disconnect the optical drive data cable from the system board.

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

9. Move the optical-drive data cable out of the way.

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

11. Move the hard-drive data cable out of the way.

12. Disconnect the IO-panel data cable from the system board.

13. Move the IO-panel cable out of the way.

14. Remove the two screws that secure the heat sink assembly bracket to the system board.

15. Remove the heat sink assembly bracket from the system.

16. Remove the seven screws that secure the system board to the chassis.

17. Remove the system board from the chassis.

Replacing the System BoardTo replace the system board, 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