Dell OptiPlex GX520 User Manual

Contents

Dell OptiPlex GX520 User Manual Manual pdf 118 page image

Back to Contents PageReplacing the System BoardDell™ OptiPlex™ GX520 User's GuideRemoving the System Board1. Shut down the computer through the Start menu.2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shutdown your computer, turn them off now.3. Disconnect any telephone or telecommunication lines from the computer.4. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.5. Remove the computer cover:l Remove the mini tower computer cover.l Remove the desktop computer cover.l Remove the small form factor computer cover.6. Remove any components that restrict access to the system board (CD/DVD drive(s), floppy drive, hard drive, I/O panel (except for small form factorcomputer).7. Remove the processor and heat sink assembly:l Remove the mini tower processor and heat sink assembly.l Remove the desktop processor and heat sink assembly.l Remove the small form factor processor and heat sink assembly.8. Disconnect all cables from the system board.9. Remove the screws from the system board. See the illustrations below for screw locations:l See "Mini Tower System Board Screws" for an illustration of the screw locations.l See "Desktop System Board Screws" for an illustration of the screw locations.l See "Small Form Factor System Board Screws" for an illustration of the screw locations.10. Slide the system board assembly toward the front of the computer, and then lift the board up and away.Mini Tower System Board ScrewsNOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.CAUTION: To guard against the electrical shock, always unplug your computer from the electrical outlet before removing the cover.NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of thecomputer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.