CAUTION:
The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off
the computer and wait several minutes until the computer is cool.
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. Lay the computer on its side for easier access to the system board.
3. Remove the computer cover. See “Removing the computer cover” on page 144.
4. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 145.
5. Press the release tab
1
as shown and pivot the drive bay assembly upward.
Figure 210. Pivoting the drive bay assembly upward
6. Remove all memory modules and PCI cards that are currently installed. See “Installing or replacing a
memory module” on page 146 and “Installing or replacing a PCI card” on page 148.
7. Remove the heat sink and fan assembly from the failing system board. See “Replacing the heat sink and
fan assembly” on page 185.
8. Record the cable routing and cable connections and then disconnect all cables from the system board.
See “Locating parts on the system board” on page 79.
208
ThinkStation P300 Hardware Maintenance Manual
Summary of Contents for ThinkStation P300
Page 1: ...ThinkStation P300 Hardware Maintenance Manual Machine Types 30AG 30AH 30AJ and 30AK ...
Page 6: ......
Page 13: ...Chapter 1 Safety information 7 ...
Page 17: ...Chapter 1 Safety information 11 ...
Page 18: ...1 2 12 ThinkStation P300 Hardware Maintenance Manual ...
Page 19: ...1 2 Chapter 1 Safety information 13 ...
Page 24: ...1 2 18 ThinkStation P300 Hardware Maintenance Manual ...
Page 25: ...1 2 Chapter 1 Safety information 19 ...
Page 28: ...22 ThinkStation P300 Hardware Maintenance Manual ...
Page 32: ...26 ThinkStation P300 Hardware Maintenance Manual ...
Page 72: ...66 ThinkStation P300 Hardware Maintenance Manual ...
Page 76: ...Figure 3 Locating major FRUs and CRUs 70 ThinkStation P300 Hardware Maintenance Manual ...
Page 88: ...82 ThinkStation P300 Hardware Maintenance Manual ...
Page 236: ...230 ThinkStation P300 Hardware Maintenance Manual ...
Page 242: ...236 ThinkStation P300 Hardware Maintenance Manual ...
Page 243: ......
Page 244: ......