You have powered up your laptop, but nothing is ever displayed on the screen. The lights and sounds appear to be working normally, but the LCD display is completely blank. Which of these tasks would be the best next step for troubleshooting this issue?
Motherboard expansion slots come in many different shapes, sizes, and speeds. In this video, you’ll learn about the characteristics and speeds of popular motherboard expansion slots.
Motherboard Expansion Slots and Bus Speeds – CompTIA A+ 220-801: 1.2 Read More »
As a CompTIA A+ technician, you’ll work on numerous motherboard types. In this video, you’ll learn about the types and characteristics of some popular motherboards.
An Overview of Motherboard Types – CompTIA A+ 220-801: 1.2 Read More »
Your computer’s BIOS contains many different configuration options. In this video, you’ll learn how to make configuration changes to your BIOS without risking the operation of your computer.
Configuring your BIOS Settings – CompTIA A+ 220-801: 1.1 Read More »
The BIOS is an important part of your computer’s configuration. In this video, you’ll learn about the PC BIOS and it’s importance to the startup process of your computer.
Working with your Computer’s BIOS – CompTIA A+ 220-801: 1.1 Read More »
Which of these security technologies would be the best choice to store and manage a computer’s cryptographic keys?
The upgrade of your computer’s BIOS is a simple and safe process when handled correctly. In this video, you’ll learn the steps to take to ensure your BIOS upgrade goes without a hitch.
How to Install BIOS Upgrades – CompTIA A+ 220-801: 1.1 Read More »
This is the index to our free CompTIA 220-801/802 A+ training course videos. All of our training videos are completely free; watch all of our videos online right now! For a small cost, you can download every video, audio versions of each module, and all of our slides in PDF format! Click here to see
Professor Messer’s CompTIA 220-801/802 A+ Training Read More »
When you check your motherboard power connection with a multimeter, you find that the 12V rail is providing 12 volts of power, the 5V rail is providing 5 volts of power, and the 3.3V rail is providing no voltage. Which of these is the most likely conclusion that you can make from these measurements?
