Ch1_IntroTroubleshooting Flashcards
Six Step A+ Troubleshooting Process
- Identify the problem
- Establish theory of probable cause.
- Test theory to determine cause.
- Establish a plan of action to resolve the problem and implement the solution.
- Verify full system functionality and if applicable implement preventative measures.
- Document findings, actions, and outcomes.
Identify the Problem - Three Steps
- Question user about issues and their actions pertaining to the issues.
- Identify changes made to the computer / inspect computer.
- Review documentation - Company and manuals.
What is the 2nd step of the A+ troubleshooting methodology?
Establish theory of probable cause.
When you run out of possible theories for the cause of a problem; what should you do?
Escalate the problem.
What should you do before making any changes to the computer?
Perform a backup.
What is step 5 of the A+ troubleshooting process?
Verify full system functionality and implement preventative measures.
What should you do next after testing the theory to determine cause?
Establish a plan of action to resolve the problem.
FRU Defined
Field Replacable Units - Any PC component that can be swapped out by a tech (ie memory, drives, monitors, power supply, etc)
Ten Common PC Tools
- Antistatic Strap
- Demagnetized Phillips head screwdriver.
- Multimeter
- Power Supply Tester
- Torx Screwdriver
- Hex Screwdriver
- Plastic Tweezers
- Compressed Air
- Penlight / small flashlight
- Magnifying Glass.
Four Main “no display” Causes
- Video Card
- Processor
- Memory / RAM
- Motherboard.
There is a problem with the power supplied to a group of computers and you do not know how to fix the problem.
What should you do next?
Contact the building supervisor or your manager (ie escalate)
You have confirmed your theory that a video card is bad and needs to be replaced.
What should you do next?
Establish a plan of action to replace the video card.
A computer won’t turn on when you press the Power button.
What should you check first?
See if the computer is plugged in.
Which of these is contained within Step 1 of the six-step troubleshooting process?
- Question the user.
- Document findings.
- Establish a new theory.
- Escalate the problem.
Question the user to help identify the problem.
List the four most common causes for a “no-display” problem.
- Video Card
- Memory.
- Processor.
- Motherboard.