You are working as a technician at Domain.com. You have just finished an upgrade to a total of 512MB RAM in a laptop. After booting up the laptop Windows reports only 448MB of total RAM. Which of the following BEST explains the reason for the difference in RAM?

A.
The operating system does not support more than 448MB of RAM.

B.
The RAM is not seated properly.

C.
The technician installed a faulty RAM module.

D.
The laptop is designed with a video card that uses shared RAM technology.

Explanation:
Shared video memory “borrows” the amount of memory needed by the GPU (Graphics processing unit). In this case the video card uses 64Mb of shared memory.