4.Reinstall the microprocessor heat sink, and then lower the heat sink shroud.
5.Reattach the cables to the system board.
6.Reinstall any cards.
7.Replace the floppy drive.
8.Replace the computer cover.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
9.Connect your computer and devices to electrical outlets, and turn them on.
Replacing the Power Supply
Removing the Power Supply
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions provided in your Owner's Manual.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
1.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 shut down your computer, turn them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
5.Remove the computer cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.
6.Disconnect the AC power cable from the AC power connector on the back of the power supply.
7.Unplug the DC power cables from the drives and system board.
8.Remove the four screws that secure the power supply to the back of the computer.
9.Remove the power supply from the computer.
Replacing the Power Supply
1.Slide the power supply into place.
2.Replace the four screws that secure the power supply to the back of the computer.
