Lenovo 7522D6U User Manual

Also see for 7522D6U: Brochure & specs

Contents

8. Install the new power supply assembly into the chassis so that the screw holesin the new power supply assembly align with those in the chassis.9. Install and tighten the four screws at the rear of the chassis to secure thepower supply assembly.Note: Use only the screws provided by Lenovo.10. Reconnect all the power supply assembly cables to the drives and the systemboard.11. Go to “Completing the parts replacement” on page 35.Replacing the heat sink and fan assemblyAttentionDo not open your computer or attempt any repair before reading and understanding the“Important safety information” in the ThinkCentre Safety and Warranty Guide that came withyour computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:http://www.lenovo.com/supportThis section provides instructions on how to replace the heat sink and fanassembly.CAUTION:The heat sink and fan assembly might be very hot. Turn off the computer andwait three to five minutes to let the computer cool before opening the computercover.To replace the heat sink and fan assembly:1. Open the computer cover. See “Opening the computer cover” on page 12.2. Pivot the drive bay assembly upward to gain access to the heat sink and fanassembly. See “Accessing the system board components and drives” on page13.3. Locate the heat sink and fan assembly and disconnect the heat sink and fanassembly cable from the microprocessor fan connector on the system board. See“Locating parts on the system board” on page 10.Chapter 2. Installing options and replacing hardware 29