IBM 436854u Service Guide - Page 124

To remove a non-hot-swap power supply, complete the following steps: 1. Read the safety information that begins on page vii and "Installation guidelines" on page 47. 2. Turn off the server and all attached devices; then, disconnect all power cords and external cables. 3. Unlock and remove the side cover (see "Removing the side cover" on page 52). Note: It might be helpful to lay the server on its side for the remainder of this procedure. 4. Disconnect the cables from the power supply to the system board and all internal components. Attention: Support the power supply while you remove the mounting screws. After the screws are removed, the power supply is loose and can damage other components in the server. 5. While you support the power supply, remove the four screws that secure it to the chassis; then, lift the power supply out of the chassis. Save the screws to use when you install the replacement power supply. 6. If you are instructed to return the power supply, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. 106 System x3200 M2 Types 4367 and 4368: Problem Determination and Service Guide