CompTIA A+ Core 1 (220-1001) — Question 1

A technician upgraded the memory on a server from two 8GB sticks to eight 32GB sticks. The server memory is now at full capacity per the user guide. When the technician powers on the system, only 128GB of memory is recognized by the OS and the BIOS. The technician decides to upgrade to the latest version of the firmware on the system, which does not help. Next, the technician installs the memory in sets of 64GB at a time. Each individual set of 64GB is fully recognized by the server.
Which of the following will not allow the server to recognize all of the memory installed at the same time?

Answer options

• A. The power supply is not supplying enough power for the memory.
• B. The memory has too many ECC errors and is shutting down
• C. The server is overheating when all of the memory is installed.
• D. The server needs DDR4 memory, and DDR3 is installed.

Correct answer: A

Explanation

The correct answer is A, as insufficient power from the power supply can prevent the server from recognizing all memory modules simultaneously. Options B and C are unlikely because the memory was recognized in smaller sets, and overheating would typically cause system instability rather than selective recognition. Option D is incorrect because the question states that the memory was upgraded to 32GB sticks, which are likely DDR4, assuming compatibility.