Replacing The Heat Sink And Fan Assembly - Lenovo 70AL Maintenance Manual

6. Touch the static-protective package that contains the new rear system fan to any unpainted surface on
the outside of the server. Then, remove the new rear system fan from the package.
7. Position the new rear system fan, which has four new rubber mounts attached, on the chassis so that
the four new rubber mounts are aligned with the corresponding holes in the chassis. Push the rubber
mounts through the holes, and then pull on the tips of the rubber mounts from the other side of the
chassis until the rear system fan is secured in place.
Figure 87. Installing the rear system fan
8. Connect the new rear system fan cable to the rear system fan connector on the system board. See
"System board components" on page 38.
9. If you are instructed to return the old rear system fan, follow all packaging instructions and use any
packaging materials that are supplied to you for shipping.
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 149.

Replacing the heat sink and fan assembly

Attention: Do not open your server or attempt any repair before reading and understanding "Safety information"
on page iii and "Guidelines" on page 65.
This topic provides instructions on how to replace the heat sink and fan assembly.
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ThinkServer TS440 Hardware Maintenance Manual