Join Mike Meyers for an in-depth discussion in this video Troubleshooting power supplies, part of CompTIA A+ Exam Prep (220-901) Part 2: Core Hardware.
- If you were to ask me what piece of equipment…inside your computer is most likely to die,…it's gonna be your power supply.…Power supplies are robust,…but they take a lot of abuse from bad electricity.…And, as a result of that, when I have a problem on a system,…one of the first things I'm gonna be looking at,…from a hardware standpoint, is the power supply.…Now, power supplies die in one of two ways:…either they're going to die catastrophically,…or they're going to die slow.…Catastrophic death is pretty obvious.…In this situation, you're going to have absolutely…no power on the system, whatsoever.…
You're trying to hit the power button,…nothings coming on,…there's no lights, no fans are turning,…I mean, it is D-E-A-D, dead.…Now, it could get a lot more catastrophic than that.…For example, if you start to hear a big, audible pop,…and smoke starts coming out of your power supply…and you get that awful burning smell?…Well, you've probably just blown up your power supply,…and as a result of that, the right fix…is simply to replace it.…
The CompTIA A+ 220-901 exam is comprised of six key parts. The second, core hardware, is covered by this course. Instructor Mike Meyers explains the essential components and functions of motherboards, power supplies, and hard drives. He also shows you how to work with chipsets, troubleshoot electrical issues, implement RAID, and how to determine which hard drive technology to use depending on the circumstance.
Note: The six courses designed for the CompTIA A+ (220-901) exam preparation include core processing, core hardware, peripherals and building a PC, displays and printers, networking, and laptops and mobile devices.
- Working with motherboards, chipsets, and expansions
- Choosing a power supply
- Evaluating hard drive technologies
- Implementing RAID
- Troubleshooting issues