Lenovo ThinkServer RD240 Hardware Maintenance Manual page 81

Figure 46. Removing the heat sink
1 4
- Screws
5
Air flow
6
The front of the chassis
5. If you are instructed to return the heat sink, follow all packaging instructions and use any packaging
materials that are supplied to you for shipping.
6. To install the heat sink, see Installing the heat sink.
Installing the heat sink
Attention
Do not open your server or attempt any repair before reading and understanding the Safety Information and the
Warranty and Support Information on the ThinkServer Documentation DVD that comes with your product, and
Guidelines. To obtain a copy of the publications, go to:
http://www.lenovo.com/support
This section provides instructions on how to install the heat sink.
CAUTION:
The heat sink might be very hot. Turn off the server and wait three to five minutes to let
the server cool before removing the server cover.
To install the heat sink, do the following:
Note: Make sure that you have already connected the front fans to the system board before you install
the heat sink.
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See Removing the server cover.
3. Notice the orientation of the heat sink air flow and the V-shaped cooling pipe. The V-shaped cooling
pipe should always face the power supply assembly. Then, align the retaining screws on the heat sink
with the corresponding holes in the system board. Install the four screws following the numerical
sequence as shown below ( 1 to 4 ) to secure the heat sink on the system board.
.
Chapter 5 Replacing FRUs
75