Computer Support/Hardware Troubleshooting/Systems

This lesson covers troubleshooting systems.

Objectives and Skills
Objectives and skills for the troubleshooting systems portion of A+ certification include:
 * Given a scenario, troubleshoot common problems related to motherboards, RAM, CPU and power with appropriate tools.
 * Common symptoms
 * Unexpected shutdowns
 * System lockups
 * POST code beeps
 * Blank screen on bootup
 * BIOS time and settings resets
 * Attempts to boot to incorrect device
 * Continuous reboots
 * No power
 * Overheating
 * Loud noise
 * Intermittent device failure
 * Fans spin – no power to other devices
 * Indicator lights
 * Smoke
 * Burning smell
 * Proprietary crash screens (BSOD/pin wheel)
 * Distended capacitors
 * Tools
 * Multimeter
 * Power supply tester
 * Loopback plugs
 * POST card / USB

Readings

 * 1)  Troubleshooting
 * 2)  Multimeter
 * 3)  POST card
 * 4)  Power-on self-test

Multimedia

 * 1) YouTube: Troubleshooting Common Hardware Problems - CompTIA A+ 220-901 - 4.1
 * 2) YouTube: Hardware Troubleshooting Tools - CompTIA A+ 220-901 - 4.1

Activities

 * 1) Follow along with YouTube: ATX PC power supply diagnostic and repair.
 * 2) Follow along with YouTube: Using a "Power Supply Tester" to test an ATX computer PSU (and a voltmeter too).
 * 3) Make your own 5-in-1 loopback device