Which of the following can cause that the heat-sink retainer bracket short circuit the server board?

A.
If there is no nonconductive lining between the bottom plate and the motherboard.

B.
Protruding solder points near the heat-sink area.

C.
The thermal grease between the processor and the heat-sink.

D.
None of the above.

Explanation:
Begin by mounting the heat-sink retainer bracket to the server board. First, check to ensure that the server board does not reveal protruding solder points near the heat-sink area. These points can short-circuit and burn out the board and the processor if they contact the bottom of the retention bracket.
Incorrect
Answers:
A: It only can cause a short circuit if there is protruding solder points from the board.
C: This prevents over heating.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 251-273.