Lenovo M73 manual Replacing the microprocessor, What to do next, Installing the heat sink fan duct

10.Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until the two screw holes in the heat sink fan duct are aligned with those in the heat sink and fan assembly. Install the two screws to secure the heat sink fan duct.

Figure 44. Installing the heat sink fan duct

What to do next:

•To work with another piece of hardware, go to the appropriate section.

•To complete the replacement, go to “Completing the parts replacement” on page 79.

Replacing the microprocessor

Attention:

Do not open your computer or attempt any repair before reading and understanding the “Important safety information” on page v.

This section provides instructions on how to replace the microprocessor.

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 removing the computer cover.

To replace the microprocessor, do the following:

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Remove the computer cover. See “Removing the computer cover” on page 38.

3.Locate the system board and disconnect all cables connected to the system board. See “Locating parts on the system board” on page 13.

4.Remove the heat sink and fan assembly. See “Replacing the heat sink and fan assembly” on page 56.

Chapter 5. Installing or replacing hardware 63