Dell™OptiPlex™760ServiceManual Mini Tower Computer Desktop Computer Small Form Factor Computer Ultra Small Form Factor Computer
Back to Contents Page Battery Dell™OptiPlex™760ServiceManual Replacing the Battery Replacing the Battery A coin-cell battery mainta
Back to Contents Page Dell™OptiPlex™760ServiceManual System Fan System Fan Removing the System Fan 1. Follow the procedures in Wor
Back to Contents Page Mini Tower Dell™OptiPlex™760ServiceManual Removing the Computer Cover Inside Your Computer System Board Compone
System Board Components WARNING: Before working inside your computer, read the safety information that shipped with your computer. For addi
Back to Contents Page 17 battery socket (BATTERY) 18 PS/2 or serial connector (SERIAL2) 19 floppy connector (DSKT) 20 fan (FAN_CPU)
Back to Contents Page Replacing the Computer Cover Dell™OptiPlex™760ServiceManual Mini-Tower, Desktop, and Small Form Factor Ultra Small
Back to Contents Page 1 release knob
Back to Contents Page Dell™OptiPlex™760ServiceManual Cards Cards YourDell™computersupportsaPS/2serialportadapterandprovides
4. If you are installing a new card, remove the filler bracket to create a card- slot opening. Then continue with step 6. 5. If you are replacing
14. Install any drivers required for the card as described in the card documentation. Removing a PCI Card 1. Follow the procedures in Working
6. Install the new system battery. a. Support the battery connector by pressing down firmly on the positive side of the connector. b. Hold t
b. Connect the network cable to the integrated the back panel of the computer. PCI Express and DVI Cards Your computer supports one low-profile P
8. Connect any cables that should be attached to the card. 9. Before you close the card retention mechanism, ensure that: l The tops of
4. If necessary, disconnect any cables connected to the card. 5. Press the lever with your thumb until you release the securing tab. If you
11. Replace the computer cover (see Replacing the Computer Cover). 12. Uninstall the card's driver. See the documentation that came with t
8. Connect the adapter cable to the PS/2 serial port adapter connector (PS2/SERIAL2) on the system board (see System Board Components). 9. Repla
Back to Contents Page Dell™OptiPlex™760ServiceManual Heat Sink and Processor Heat Sink and Processor Removing the Processor 1. Fol
8. Gently remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the n
7. Set the processor lightly in the socket and ensure that the processor is positioned correctly. 8. When the processor is fully seated in
13. Route the floppy drive cable through the securing tab on the heat sink and connect it to the system board. 14. Replace the optical drive
Back to Contents Page Dell™OptiPlex™760ServiceManual Chassis Intrusion Switch Chassis Intrusion Switch Removing the Chassis Intrusion
Back to Contents Page Working on Your Computer Dell™OptiPlex™760ServiceManual Recommended Tools Before Working on Your Computer After
1. Turn on (or restart) your computer. 2. WhentheDELL™logoappears,press<F12>immediately. If you wait too long and the operating
Back to Contents Page Dell™OptiPlex™760ServiceManual Drives Drives Your computer supports: l One SATA (serial ATA) hard drive l One sli
Connecting and Disconnecting Drive Cables When removing an cable with a pull-tab, grasp the colored pull-tab and pull until the connector detache
5. Disconnect the power and data cable from the hard drive. 6. Disconnect the data cable from the system board. 7. Disconnect the hard-d
4. Connect the hard drive fan cable to the system board. 5. Connect the power and data cables to the hard drive. 6. Connect the data cab
10. If the drive you just installed is the primary drive, insert a bootable media into your boot drive. 11. Turn on the computer. 12. En
Optical Drive Removing an Optical Drive 1. Follow the procedures in Working on Your Computer. 2. Remove the computer cover (see Removing
6. Remove the drive and replace the computer cover (see Replacing the Computer Cover). Installing an Optical Drive 1. Unpack the drive and
7. Gently position the drive until it clicks into place. 8. Check all cable connections and fold cables out of the way to provide airflow fo
4. Pull the cable release tab to disconnect the data cable from the system board. 5. Pull the drive release latch and slide the floppy drive
1. Shut down the operating system. 2. Ensure that the computer and all attached devices are turned off. If your computer and attached devices d
5. Replace the optical drive (see Optical Drive). 6. Check all cable connections, and fold cables out of the way to provide airflow for the f
8. Pull the drive release latch and slide the media card reader towards the back of the computer. Then lift up to remove the media card reader fro
5. Replace the optical drive (see Optical Drive). 6. Check all cable connections, and fold cables out of the way to provide airflow for the f
Back to Contents Page Dell™OptiPlex™760ServiceManual System Fan System Fan Removing the System Fan 1. Follow the procedures in Worki
Back to Contents Page Dell™OptiPlex™760ServiceManual I/O Panel I/O Panel Removing the I/O Panel 1. Follow the procedures in Workin
Back to Contents Page NOTE: Use the guides on the I/O panel bracket to help position the I/O panel in place and use the notch on the I/O panel brac
Back to Contents Page Dell™OptiPlex™760ServiceManual Power Supply Power Supply Replacing the Power Supply 1. Follow the procedures
12. Replace the floppy drive or media card reader (see Installing a Floppy Drive). 13. Replace the optical drive (see Installing an Optical Dr
DC Power Connector P2 DC Power Connectors P3 DC Power Connector P6 Back to Contents Page 19 +12 VDC Yellow 20 -12 VDC Blue 21 COM Bla
Back to Contents Page Dell™OptiPlex™760ServiceManual Speakers Speakers Installing a Speaker 1. Follow the procedures in Working on
Dell™OptiPlex™760ServiceManual Notes, Cautions, and Warnings IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicro
5. Replace the computer cover. 6. Turn on power to the computer. Back to Contents Page
Back to Contents Page Small Form Factor Dell™OptiPlex™760ServiceManual Removing the Computer Cover Inside Your Computer System Board
System Board Components CAUTION: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the s
Back to Contents Page 19 fan connector (FAN_CPU)
Dell™OptiPlex™760ServiceManual Notes, Cautions, and Warnings IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicro
Back to Contents Page System Board Dell™OptiPlex™760ServiceManual Removing the System Board Replacing the System Board Removing the
Desktop System Board Screws Small Form Factor System Board Screws 1 screws (9) 1 screws (9)
Ultra Small Form Factor System Board Screws Replacing the System Board 1. Gently align the board into the chassis and slide it toward the ba
Back to Contents Page
Back to Contents Page System Setup Dell™OptiPlex™760ServiceManual Overview Entering System Setup System Setup Options Boot Sequenc
Back to Contents Page Dell™OptiPlex™760ServiceManual Cards Cards YourDell™computerprovidesthefollowingconnectorsonthesystem
NOTE: Depending on your computer and installed devices, the items listed in this section may not appear, or may not appear exactly as listed. WARNI
Video Primary Video Specifies which video controller is primary when two video controllers are present on the computer. l Auto (default) l Onboard/P
AC Recovery Determines how the system responds when AC power is re-applied after a power loss. You can set the AC Recovery to: l Power Off (default)
Boot Sequence This feature allows you to change the Boot Device Property for devices. Option Settings l Onboard USB Floppy Drive — The computer a
5. Use the arrow keys to select the appropriate device (for the current boot only). Changing the Boot Sequence for Future Boots 1. Enter Syst
Assigning a System Password To exit without assigning a system password, press <Esc> at any time (before you press the OK button in step 4).
You cannot change or enter a new administrator password if either of the following two options is displayed: l Set — An administrator password is ass
Mini Tower Desktop Small Form Factor Ultra Small Form Factor
Clearing Forgotten Passwords 1. Follow the procedures in Working on Your Computer. 2. Remove the computer cover. 3. Locate the 2-p
13. Assign a new system and/or administrator password. Clearing CMOS Settings 1. Follow the procedures in Working on Your Computer. 2.
4. If you are installing a card in an empty card connector on the system board, remove the filler bracket to create a card-slot opening at the back
Back to Contents Page Dell™OptiPlex™760ServiceManual IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicrosoft®
Back to Contents Page Troubleshooting Dell™OptiPlex™760ServiceManual Tools Dell Diagnostics Solving Problems Dell Technical Update
To help troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the front panel. When the computer starts normally, the lig
Steady Amber Steady Amber BIOS may be corrupt or missing. l The computer hardware is operating normally but the BIOS may be corrupt or missing. Cont
Power Supply Diagnostic Light The power supply diagnostic light located on the back of the computer, near the power connector. The light remains sol
Beep Codes Your computer may emit a series of beeps during start-up if the monitor cannot display errors or problems. For example, one possible beep
Hard-disk read failure — Possible hard drive failure during hard-drive boot test (see Contacting Dell for assistance). Keyboard failure — Keyboar
Starting the Dell Diagnostics From Your Hard Drive Before running the Dell Diagnostics, enter System Setup (see the Entering System Setup) to review
5. Press any key to confirm that you want to start from the CD/DVD. If you wait too long and the operating system logo appears, continue to wait u
Solving Problems Follow these tips when troubleshooting your computer: l If you added or removed a part before the problem started, review the inst
11. Replace the computer cover (see Replacing the Computer Cover), reconnect the computer and devices to electrical outlets, and then turn them on
Clean the drive or disk — See the Dell™TechnologyGuide for more information on cleaning your computer. Check the cable connections Run the H
Error Messages If the error message is not listed, see the documentation for the operating system or the program that was running when the message
If you have problems with a Dell IEEE 1394 device — Contact Dell (see Contacting Dell). If you have problems with an IEEE 1394 device not provid
A program crashes repeatedly Check the software documentation — If necessary, uninstall and then reinstall the program. A program is designed fo
l Reseat the memory modules (see Memory) to ensure that your computer is successfully communicating with the memory. l Ensure that you are following
Power Problems If the power light is blue and the computer is not responding — See Diagnostic Lights. If the power light is blinking green — The
Windows Vista: 1. Click Start ® Control Panel® Hardware and Sound® Printer. 2. If the printer is listed, right-click the printer icon. 3. Cl
that the sound is not muted. Disconnect headphones from the headphone connector — Sound from the speakers is automatically disabled when headphones
See Diagnostic Lights. Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and brightness, demagne
Back to Contents Page Dell™OptiPlex™760ServiceManual Module Bay Module Bay You can install a Dell™ removable device such as a floppy dri
6. Grasp the card by its top corners, and ease it out of its connector. 7. If you are removing the card permanently, install a filler bracket
3. Press the device latch release so that the latch release pops out. 4. Pull the device by the latch release to remove the device from
Removing and Installing a Device When Your Computer Is Running Microsoft®Windows® 1. To remove a device installed in the module bay, doubl
3. Replace the computer cover (see Replacing the Computer Cover). The module cannot be removed from the computer until you lift the module locking
Back to Contents Page Dell™OptiPlex™760ServiceManual Cable Cover (Optional) Cable Cover (Optional) Attaching the Cable Cover 1. Ensure
Back to Contents Page Dell™OptiPlex™760ServiceManual Heat Sink and Processor Heat Sink and Processor Removing the Processor 1.
b. Gently lift the heat sink from the processor. c. Lay the heat sink down on its top, with the thermal grease facing upward. 5. Open the
4. Align the pin-1 corners of the processor and socket. 5. Set the processor lightly in the socket and ensure that the processor is position
10. Lower the heat sink onto the processor at a 45-degree angle so that one end of the heat sink fits securely under the tab opposite the release ta
Back to Contents Page Dell™OptiPlex™760ServiceManual Chassis Intrusion Switch Chassis Intrusion Switch Removing the Chassis Intrusion
3. Select System Setup. 4. Select Security® Chassis Intrusion and then select the Clear Intrusion Warning option to reset the chassis intrusion
4. Press in on the tab to raise the card-retention latch. 5. If necessary, disconnect any cables connected to the card. 6. Grasp the car
Back to Contents Page Dell™OptiPlex™760ServiceManual Drives Drives Your computer supports: l One SATA (serial ATA) hard drive l One opt
When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end. When removing a cable with a pull-tab, grasp t
2. Remove the computer cover (see Removing the Computer Cover). 3. If you are installing a new drive, rather than replacing an already install
For instructions, see the documentation that came with your operating system. 13. Test the hard drive by running the Dell Diagnostics (see Dell Diag
7. Replace the cable cover, if used. Back to Contents Page
Back to Contents Page Dell™OptiPlex™760ServiceManual System Fans System Fans Removing the System Fans 1. Follow the procedures in
Back to Contents Page
Back to Contents Page Dell™OptiPlex™760ServiceManual Power Button Power Button Removing the Power Button 1. Follow the procedures in
Back to Contents Page Dell™OptiPlex™760ServiceManual Speakers Speakers Removing a Speaker 1. Follow the procedures in Working on Y
5. Replace the computer cover. 6. Turn on power to the computer. Back to Contents Page
Back to Contents Page Advanced Features Dell™OptiPlex™760ServiceManual LegacySelect Technology Control Manageability Physical Securit
13. If you removed a network adapter card and want to turn on the integrated network adapter: a. Enter system setup, select System Configuration
Back to Contents Page Ultra Small Form Factor Dell™OptiPlex™760ServiceManual Removing the Computer Cover Inside Your Computer System
System Board Components WARNING: Before working inside your computer, read the safety information that shipped with your computer. For addi
Dell Badge The Dell badge on the front of your computer can be rotated. To rotate the badge: 1. Remove the computer cover (see Removing the Comp
Dell™OptiPlex™760ServiceManual Notes, Cautions, and Warnings IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicro
8. Insert the card firmly into the card connector on the riser-card cage. 9. Lower the card-retention latch and press it into place, securing
b. Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the microphone, speaker/headphone, o
8. Connect the adapter cable to the PS/2 serial port adapter connector (SERIAL2) on the system board (see System Board Components). 9. Replace
7. Before you close the card retention mechanism, ensure that: l The tops of all cards and filler brackets are flush with the alignment bar. l
12. Replace the riser-card cage: a. Align the tabs in the side of the riser-card cage with the slots on the side of the computer, and slide the
c. Rotate the riser-card cage handle to the down position. 11. Replace the computer cover (see Replacing the Computer Cover). 12. Uninstall
Back to Contents Page Dell™OptiPlex™760ServiceManual Processor Processor Removing the Processor 1. Follow the procedures in Workin
1. Follow the procedures in Working on Your Computer. 2. Remove the computer cover (see Removing the Computer Cover). 3. Unpack the new proc
iAMT Features Basic Functionality l Ability to discover, track, and inventory assets in the presence or absence of the operating systems. The comp
Back to Contents Page Dell™OptiPlex™760ServiceManual Chassis Intrusion Switch Chassis Intrusion Switch Removing the Chassis Intrusion
2. WhentheDELL™logoappears,press<F12>immediately. If you wait too long and the operating system logo appears, continue to wait unti
Back to Contents Page Dell™OptiPlex™760ServiceManual Drives Drives Your computer supports: l One serial ATA (SATA) hard drive l One 3.5
Power Cable Connectors Connecting and Disconnecting Drive Cables When removing a cable with a pull-tab, grasp the colored pull-tab and pull un
5. Press the release tabs on the plastic insert and press from behind to remove. Replacing Drive Inserts If you are removing a drive, and n
3. Pull up on the drive-release latch and slide the drive towards the back of the computer. Then, lift up to remove the drive from the computer.
7. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 8. Replace the computer cove
5. Disconnect the power and data cables from the back of the floppy drive. 6. If you are not replacing the floppy drive or media card reader
4. Attach the power and data cables to the floppy drive. 5. Align the shoulder screws with the screw guides, and slide the drive into the bay unt
5. Disconnect the cable from the back of the media card reader and from the system board. 6. If you are not replacing the media card reader
l Be formatted using the FAT16 file system with no system files l Contain only the setup.bin file To provision AMT using a USB key, plug the USB k
2. If you are replacing an existing media card reader: Remove the four shoulder screws from the existing media card reader. 3. Insert the four
8. Replace the computer cover (see Replacing the Computer Cover). 9. Verify that your computer works correctly by running the Dell Diagnostics (s
2. Unpack the replacement hard drive, and prepare it for installation. 3. If your replacement hard drive does not have the plastic hard-drive b
8. Check all connectors to be certain that they are properly cabled and firmly seated. 9. Replace the computer cover (see Replacing the Comput
Back to Contents Page Dell™OptiPlex™760ServiceManual System Fan System Fan Removing the System Fan 1. Follow the procedures in Wor
Back to Contents Page Dell™OptiPlex™760ServiceManual Heat Sink Assembly Heat Sink Assembly Removing the Heat Sink Assembly 1. Loos
3. Replace the computer cover (see Replacing the Computer Cover). Back to Contents Page 1 heat sink assembly 2 heat-sink assembly bracket 3 ca
Back to Contents Page Dell™OptiPlex™760ServiceManual I/O Panel I/O Panel Removing the I/O Panel 1. Follow the procedures in Worki
Back to Contents Page Dell™OptiPlex™760ServiceManual Power Supply Power Supply Replacing the Power Supply 1. Follow the procedures
l Access information about your computer, such as how many processors it has and what operating system it is running. l Monitor the status of your
12. Connect the AC power cable to the connector. 13. Replace the computer cover (see Replacing the Computer Cover). DC Power Connectors D
DC Power Connector P2 DC Power Connector P4 DC Power Connector P5 and P6 Back to Contents Page 24 +5 VDC Red Pin Number Signal N
Back to Contents Page Dell™OptiPlex™760ServiceManual Speakers Speakers Removing a Speaker 1. Follow the procedures in Working on Y
2. Remove the cover of your computer (see Removing the Computer Cover). 3. Insert the speaker into the chassis of the computer. 4. Connect
Back to Contents Page Desktop Dell™OptiPlex™760ServiceManual Removing the Computer Cover Inside View of Your Computer System Board Co
System Board Components CAUTION: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the s
Back to Contents Page 17 PS/2 or serial connector (SERIAL2) 18 floppy connector (DSKT) 19 fan connector (FAN_CPU)
Back to Contents Page Contacting Dell Dell™OptiPlex™760ServiceManual To contact Dell for sales, technical support, or customer service issue
Back to Contents Page Glossary Dell™OptiPlex™760ServiceManual Terms in this Glossary are provided for informational purposes only and may or
CD-RW — CD rewritable — A rewritable version of a CD. Data can be written to a CD-RW disc, and then erased and written over (rewritten). CD-RW drive —
Antitheft devices usually include a segment of metal-stranded cable with an attached locking device and key. The documentation that comes with the d
E ECC — error checking and correction — A type of memory that includes special circuitry for testing the accuracy of data as it passes in and out of
HTTP — hypertext transfer protocol — A protocol for exchanging files between computers connected to the Internet. Hyperthreading — hyperthreading is
memory — A temporary data storage area inside your computer. Because the data in memory is not permanent, it is recommended that you frequently save y
processor — A computer chip that interprets and executes program instructions. Sometimes the processor is referred to as the CPU (central processing u
surge protectors — Prevent voltage spikes, such as those that may occur during an electrical storm, from entering the computer through the electrical
W W — watt — The measurement of electrical power. One W is 1 ampere of current flowing at 1 volt. WHr — watt-hour — A unit of measure commonly used t
Back to Contents Page Memory Dell™OptiPlex™760ServiceManual Installing Memory Module (s) Removing Memory Module (s) You can increase y
Addressing Memory Configurations If you are using a 32-bit operating system such as Microsoft® Windows®Vista®, your computer will support a maximum
6. Replace the computer cover (see Replacing the Computer Cover). 7. Connect your computer and devices to electrical outlets, and turn them
Dell™OptiPlex™760ServiceManual Notes, Cautions, and Warnings IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicro
Computer Tracking Software Computer tracking software may enable you to locate your computer if it is lost or stolen. The software is optional and m
Back to Contents Page Dell™OptiPlex™760ServiceManual Cards Cards YourDell™computersupportsaPS/2serialportadapterandprovides
4. If you are installing a new card, remove the filler bracket to create a card- slot opening. 5. If you are replacing a card that is already
10. Before you lower the card retention mechanism, ensure that: l The tops of all cards and filler brackets are flush with the alignment bar.
4. If necessary, disconnect any cables connected to the card. 5. If you are removing the card permanently, install a filler bracket in the em
4. Remove the filler bracket (if applicable). 5. Align the PS/2 serial port adapter bracket in the retention slot and press down firmly. Ensur
9. Replace the computer cover (see Replacing the Computer Cover). Removing a PS/2 Serial Port Adapter 1. Follow the procedures in Working o
8. Before you close the card retention mechanism, ensure that: l The tops of all cards and filler brackets are flush with the alignment bar. l
Back to Contents Page Dell™OptiPlex™760ServiceManual Heat Sink and Processor Heat Sink and Processor Removing the Processor 1. Fol
6. Gently remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new
7. Set the processor lightly in the socket and ensure that the processor is positioned correctly. 8. When the processor is fully seated in th
Hibernate mode conserves power by copying system data to a reserved area on the hard drive, and then completely turning off the computer. When the com
Back to Contents Page Dell™OptiPlex™760ServiceManual Chassis Intrusion Switch Chassis Intrusion Switch Removing the Chassis Intrusion
3. Select the Chassis Intrusion option and then press the left- or right-arrow key to select Reset. Change the setting to On, On-Silent, or Disabled
Back to Contents Page Dell™OptiPlex™760ServiceManual Drives Drives Your computer supports: l Two SATA (Serial ATA) hard drives l One 3.
Power Cable Connectors Connecting and Disconnecting Drive Cables When removing a cable with a pull-tab, grasp the colored pull-tab and pull un
6. Press in on the blue release tabs on each side of the hard drive and slide the drive up and out of the computer. Installing a Hard Drive
4. Gently spread the sides of the drive bracket and slide the hard drive into the bracket, aligning the drive with the bracket pins, until the drive
14. If the drive you just installed is the primary drive, install your operating system on the hard drive. If the drive you just installed is the prim
8. Locate an unused SATA connector on the system board and attach a data cable to this connector and to the second hard drive. 9. Replace th
Removing the Floppy Drive 1. Boot your computer and enter system setup (see Entering System Setup). Use the Diskette Drive option to disable the fl
4. Attach the power and data cables to the floppy drive and to the system board. 5. Replace the computer cover (see Replacing the Computer C
For more information on power management options: 1. Click Start® Help and Support® Performance and maintenance. 2. In the Performance and ma
3. Remove the drive panel by sliding the drive release latch downward to open the panel, and then remove it from the hinges. 4. Disconnect th
4. Attach the cable to the media card reader and to the system board. 5. Replace the computer cover (see Replacing the Computer Cover).
4. Grasp the sliding plate lever and slide it downwards until the drive panel snaps open; while holding the lever down, slide the drive out of the
7. Connect the power and data cables to the drive and to the system board. 8. Check all cable connections, and fold cables out of the way to
Back to Contents Page Dell™OptiPlex™760ServiceManual I/O Panel I/O Panel Removing the I/O Panel 1. Follow the procedures in Workin
Back to Contents Page Dell™OptiPlex™760ServiceManual Power Supply Power Supply Replacing the Power Supply 1. Follow the procedures
12. Replace the computer cover (see Replacing the Computer Cover). DC Power Connectors DC Power Connector P1 Pin Number Signal name
DC Power Connector P2 DC Power Connectors P3, P5, P8, and P9 DC Power Connector P7 Back to Contents Page 21 +5 VDC Red 22 +5 VDC Re
Back to Contents Page Dell™OptiPlex™760ServiceManual Speakers Speakers Removing the Speaker 1. Follow the procedures in Working on
4. Connect the cables to the system board. 5. Replace the computer cover. 6. Turn on power to the computer. Back to Contents Page
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