Lenovo ThinkCentre M58e Hardware Maintenance Manual - Page 80
Replacing the heat sink and fan assembly, System board connectors
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e. Lower the microprocessor retainer and then lower the lever to secure the retainer. Make sure the lever is securely locked into position. f. Follow any additional instructions included with the replacement part you received. 10. Install the new retention module to the new system board. 11. Remove the memory modules from the failing system board and install them in the same location on the new system board. 12. Install the new system board into the chassis and align the screw holes with those in the chassis. Insert and tighten the screws that secure the system board. 13. Install the new Microprocessor in the new system board. See "Replacing the microprocessor" on page 75. 14. Install the heat sink and fan assembly on the system board. See "Replacing the heat sink and fan assembly" on page 74. 15. Connect the heat sink and fan assembly cable to the new system board. See the system board illustration for your machine type at "System board connectors" on page 68. 16. Pivot the hard disk drive back into position. 17. Connect the power and signal cables to the hard disk drive. 18. Connect all cables to the system board. See the system board illustration for your machine type at "System board connectors" on page 68. 19. Go to "Completing the FRU replacement" on page 95. Replacing the heat sink and fan assembly CAUTION: The heat sink and microprocessor might be very hot. Turn off the computer and wait three to five minutes to let the computer cool before opening the computer cover. Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that was included with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to replace the heat sink and fan assembly. To replace the heat sink and fan assembly: 74 ThinkCentre Hardware Maintenance Manual