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a. Connect the signal cable to the rear of the new optical drive.
Note: If you want to replace the signal cable, remove the PCI card holder. See “Removing and
reinstalling the PCI card holder” on page 15
. Then, disconnect the old signal cable from the system
board. Connect one end of the new signal cable to the optical drive and the other end to an available
SATA connector on the system board. See “Locating parts and connectors on the system board”
on page 9.
b. Locate an available ve-wire power connector and connect it to the new optical drive.
Figure 26. Connecting a new optical drive
7. Reinstall the PCI card holder into the chassis if you have removed it. See “Removing and reinstalling the
PCI card holder” on page 15.
8. Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 14.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 37.
Replacing the heat sink and fan assembly
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the ThinkStation Safety and Warranty Guide that came with your computer. To obtain a copy of the
ThinkStation Safety and Warranty Guide, go to:
http://support.lenovo.com
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the computer and wait three to ve
minutes to let the computer cool before removing the computer cover.
This section provides instructions on how to replace the heat sink and fan assembly.
To replace the heat sink and fan assembly, 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 13.
3. Remove the PCI card holder. See “Removing and reinstalling the PCI card holder” on page 15.
4. Your computer supports two heat sink and fan assemblies. Locate the heat sink and fan assembly you
want to replace. See “Locating components” on page 8.
5. Depending on the heat sink and fan assembly you want to replace, do one of the following:
Chapter 2. Installing or replacing hardware 29