HP Vectra XE320 hp vectra xe320, upgrade guide - Page 25
Replacing the Power Supply Unit
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Upgrading and Replacing PC Hardware Replacing the Power Supply Unit WARNING Hewlett-Packard does not support power supply upgrades. This information is provided to help you replace a defective power supply unit. For your safety, only replace with a power supply provided by HP support services. To avoid electrical shock, do not open the power supply. There are no user-serviceable parts inside. For your safety, disconnect the power cord and all external cables. 1 Switch off the PC, disconnect the power cord and remove the PC's side panel (refer to "Removing and Replacing the Side Panel" on page 12). 2 Remove the four screws from the rear of the PC. Screws Voltage switch 3 Disconnect all power cables from installed drives and from the system board. 4 Lift the power supply unit out of the PC. 5 Place the new power supply unit inside the PC and tighten the four screws on the rear of the PC. 6 Reconnect all the power cables to the drives and the system board. 7 Replace the PC's side panel (refer to "Removing and Replacing the Side Panel" on page 12). 8 Check that the voltage switch is set correctly for your country (the voltage is set during manufacturing and should already be correct). 9 Reconnect the power cord. 25