Which of the following can prevent micro-fractures in the server board?

A.
Tightening the screws from the edges.

B.
Tightening the screws from the center of the board and work your way to the edges.

C.
A loose retainer arms of the heat-sink.

D.
None of the above.

Explanation:
Server boards usually have six mounting holes and they should all be properly aligned before tightening the screws. As you tighten the screws, begin at the center of the board and work your way to the edges. This technique helps to prevent micro-fractures in the server board and ensures the best fit.
Incorrect Answers:
A: You should tighten the screws from the inside to get a best fit, to retain from micro-fractures.
C: A loose retainer arm will cause the processor to overheat, not to micro-fractures.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 251-273.