Lenovo 393 Server User Manual


 
CAUTION:
The heat sink and fan assembly and the microprocessor might be very hot. Turn off the server and
wait three to ve minutes to let the server cool before removing the server cover.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
To replace the microprocessor, do the following:
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” on page 85.
3. Lay the server on its side for easier operation.
4. Remove the heat sink and fan assembly. See “Replacing the heat sink and fan assembly” on page 154.
5. Gently press down the small handle on the microprocessor socket and then pull the handle a little bit
outward to release it from the secured position. Then, pivot the handle upward until the handle and the
microprocessor retainer are in the fully open position.
Note: Your microprocessor and socket might look different from the one illustrated.
Figure92. Lifting the handle to open the microprocessor retainer
158 ThinkServer Hardware Maintenance Manual