Lenovo 63 Lenovo 63 Hardware Maintenance Manual - Page 92

Replacing the system board

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10. Lower the new microprocessor straight down into the microprocessor socket on the system board. Figure 24. 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 84. 13. Reconnect all cables that were disconnected from the system board. 14. To complete the replacement, go to "Completing the parts replacement" on page 95. Replacing the system board Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to replace the system board. 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 system board, 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 74. 3. Lay the computer on its side for easier access to the system board. 90 Lenovo Hardware Maintenance Manual

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10. Lower the new microprocessor straight down into the microprocessor socket on the system board.
Figure 24. 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 84.
13. Reconnect all cables that were disconnected from the system board.
14. To complete the replacement, go to “Completing the parts replacement” on page 95.
Replacing the system board
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the
User Guide
. To obtain a copy of the
User Guide
, go to:
This section provides instructions on how to replace the system board.
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 system board, 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 74.
3. Lay the computer on its side for easier access to the system board.
90
Lenovo Hardware Maintenance Manual