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Question 563 - 220-1101 discussion

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A technician plans to upgrade a laptop's RAM from 4GB to 16GB. Which of the following should the technician do?

A.
Purchase the same architecture of RAM.
Answers
A.
Purchase the same architecture of RAM.
B.
Configure the laptop's BIOS settings for the RAM upgrade.
Answers
B.
Configure the laptop's BIOS settings for the RAM upgrade.
C.
Purchase RAM with the same CAS latency.
Answers
C.
Purchase RAM with the same CAS latency.
D.
Purchase the same brand of RAM.
Answers
D.
Purchase the same brand of RAM.
Suggested answer: A

Explanation:

The most important factor to consider when upgrading a laptop's RAM is the architecture of the RAM, which determines the type, speed, and capacity of the memory modules. The architecture of the RAM must match the architecture of the laptop's motherboard and processor, otherwise the RAM will not be compatible or function properly. The architecture of the RAM includes the DDR generation (such as DDR3 or DDR4), the form factor (such as SO-DIMM), the pin count (such as 204 or 260), the voltage (such as 1.35V or 1.5V), and the frequency (such as 1600MHz or 2400MHz).

The other options are not as crucial or relevant for the RAM upgrade. The brand of the RAM does not matter as long as the RAM meets the specifications of the laptop and is of good quality. The CAS latency of the RAM is a measure of the delay between the memory controller requesting data and the RAM delivering it, and it affects the performance of the RAM. However, the CAS latency is not a fixed value and can vary depending on the frequency and voltage of the RAM. Therefore, purchasing RAM with the same CAS latency is not necessary or sufficient for compatibility. The laptop's BIOS settings are usually configured to automatically detect and adjust to the RAM upgrade, and do not need to be manually changed by the technician.

CompTIA A+ Certification Exam Core 1 Objectives1

The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook2

How to Upgrade the RAM in Your Laptop | Tom's Hardware3

How to Upgrade RAM on a Laptop | Crucial.com4

asked 02/10/2024
Alexey Chernikov
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