081106 computer

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081106 computer

  1. 1. 1 Basic Troubleshooting Techniques Freedom High School Systems Management
  2. 2. 2 Objectives Provide basic tools and terms used in computer troubleshooting Identify major internal and external computer components by sight Verbalize basic troubleshooting steps List at least three resources to enlist in identifying and resolving a problem
  3. 3. 3 Agenda Introductions Troubleshooting Basics Hardware Common Problems Preventative Maintenance Summary
  4. 4. 4 Speaking the Lingo Being able to distinguish between the “alphabet soup” known as computing acronyms is important Online computing terminology sites http://www.pcwebopedia.com http://www.whatis.com Online acronym site http://www.acronymfinder.com
  5. 5. 5 Hardware Components Output Input •CPU •Peripherals
  6. 6. 6 Troubleshooting Basics Seven step process Easiest to Hardest Outside In
  7. 7. 7 Seven Steps in Troubleshooting Analysis Problem replication/identification Action Plan Implementation Testing Documentation Follow Up
  8. 8. 8 What to include in your documentation? Hardware - workstations, servers, printers, and network devices Software - operating systems and applications Network diagram - detailing cabling and showing the location of all hardware devices
  9. 9. 9 Physical Diagram Sample
  10. 10. 10 Cabling Parallel Cable Serial Cable USB Cable PS 2 Mouse/Keyboard Audio Jack Video Cable Network Cable Modem Cable
  11. 11. 11 Boot Sequence Power On CPU Wakes up CPU gets POST order from BIOS POST Check Battery Check BIOS Check internal Devices (HD,RAM, Ports, Mouse, Keyboard, etc.) If ok, then find and load OS OS loads, takes over and loads device drivers, etc. and then the desktop
  12. 12. 12 Common Problems Cables Keyboards and mice Disk Drives Overheating Power problems Electromagnetic Interference (EMI) Electrostatic Discharge (ESD) Windows errors Device drivers Spyware/Viruses
  13. 13. 13 Cables Loose Bent Pins Failures Out of Ports Organization
  14. 14. 14 Bad Mouse
  15. 15. 15 Keyboard doesn't respond properly
  16. 16. 16 CD-ROM/Floppy Drive Issues
  17. 17. 17 Overheating Blocked vents Dust Cooling fans Power supply Room temperature Peripheral overload
  18. 18. 18 Power Problems Black Out- Complete power failure Brown Out- Power “sags” below acceptable levels causing computer to reboot Surges or “Spikes”- Sudden surge of power (i.e. lightning strikes)
  19. 19. 19 Electromagnetic Interference Caused by high power sources like motors, high power lines, etc. Interfere with communication in some types of cabling Causes computer screens to “wobble” or pulse
  20. 20. 20 Electrostatic Discharge Static cling Environmental causes Prevention
  21. 21. 21 Error Messages
  22. 22. 22 Computer displays a disk error or non-system disk message?
  23. 23. 23 Device Drivers Provide the programs that helps the computer to “talk” to a peripheral Common point of failure Can be difficult to fix Check the manufacturer’s websites for notification of upgrades
  24. 24. 24 Viruses Difficult to fix Easy to prevent Important to understand and be aware of Common types The best defense
  25. 25. 25 Spyware Scourge of the internet Placed on your machine without knowledge or (usually) permission
  26. 26. 26 Preventative Maintenance Cleaning Hard drive Updates
  27. 27. 27 Cleaning Mouse Keyboard Box Monitor Printer Others
  28. 28. 28 Hard Drive- Defragmentation
  29. 29. 29 Hard Drive- Scandisk
  30. 30. 30 Hard Drive- File Maintenance Disk cleanup Archiving Backups
  31. 31. 31 Recommended Tools Compressed air Alcohol or screen swabs Small flashlight Wire ties
  32. 32. 32 Final Thoughts Think simple first Outside in Gather resources Document Be patient
  33. 33. 33 Resources http://www.tomshardware.com http://www.more.net http://www.microsoft.com http://www.gateway.com http://www.dell.com http://www.cisco.com

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