Removing and replacing the system board assembly
Important
Before you install or remove any component, read “Important safety information” on page v. These precautions and guidelines will help you work safely.
Attention: If your computer has been turned off for a long period of time, the thermal grease between the microprocessor heat sink and the microprocessor might not allow them to be separated easily. In this case turn on your computer for a few minutes to soften the grease.
To remove and replace the system board assembly, do the following:
1.Turn off the computer and disconnect the power cord from the electrical outlet and from the computer.
2.Open the cover. See “Opening the cover” on page 10.
3.Rotate the drive bay assembly upward to gain access to the system board.
4.Remove the PCI riser card assembly along with any adapters. See “Installing PCI adapters” on page 15.
5.Remove the microprocessor from the system board. Go to “Removing the microprocessor” on page 38. Return here after removing the microprocessor.
6.Carefully take note of the location of all cable connections on the system board. It will be necessary to reconnect them properly when installing a new system board assembly.
Note: Take note of the cable routing. It is important to route the cables the same way when installing a new system board.
7.Disconnect the diskette drive cable from the system board by sliding the plastic cable retainer upward to release the cable.