Lenovo 5023 - Manual (Page 35)

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 14.
3. Remove the heat sink and fan assembly. See “Replacing the heat sink and fan
assembly” on page 24.
4. Place the heat sink and fan assembly on its side so that the thermal grease on
the bottom of it does not get in contact with anything.
5. Lift the small handle 3 and open the retainer 1 to access the
microprocessor 2 .
6. Lift the microprocessor straight up and out of the microprocessor socket, as
shown in Figure 22 on page 28.
Notes:
a. Your microprocessor and socket might look different from the one
illustrated.
Figure 21. Accessing the microprocessor
Chapter 2. Installing or replacing hardware 27