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10. Note the orientation of the new microprocessor. Hold the new microprocessor by its edges and align
the notches
1
on it with the tabs
microprocessor straight down into the microprocessor socket.
Note: The small triangle
indicator. The new microprocessor is in the correct orientation when this indicator points to the beveled
4
corner
of the microprocessor socket.
Figure 29. Installing the microprocessor
11. Close the microprocessor retainer and lock it into position with the small handle to secure the new
microprocessor in the socket.
12. Reinstall the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 95.
13. Reconnect all cables that were disconnected from the system board.
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 108.
Replacing a memory module
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
To replace a memory module, do the following:
1. Remove any media from the drives and turn off all connected 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 82.
3. Lay the computer on its side for easier access to the system board.
4. Remove the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 95.
2
in the microprocessor socket. Then, carefully lower the new
3
on one corner of the new microprocessor is the microprocessor orientation
.
Chapter 9
Installing or replacing hardware
99
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