1. Field Replaceable Units, Common Problems, and Flowcharts

2. Field Replaceable Units Mother boards CPUMemory Sound card video cards Network card Hardrive Floppy drive Disk drive Power supply MouseKeyboardmonitor

3. The POST routine Memory – replaced as required Hardrive – replace as demanded Video card - replace as required Disk drive - replaced as demanded

4. Common hardware Problems Power supply Network card Memory capability CPU speed Video display Driver upgrade Increase in temperature Motherboard defects Connection problems

5. Power Supply B+, B- Grounding Defective diodes Fuse resistors Leaky capacitors Defective cooling fan Leaky transistors or other semiconductor device Defective switch

6. Network Cards Software upgrade Defective terminals Defective cables System configuration and compatibility Error in the setups

7. Memory Lack of memory Virtual memory Defective memory card Memory terminal problem

8. CPU Overheating Under rated Compatibility issues Partial CPU damage Speed Recognition issues

9. Video display ColorBrightness Picture size and shape Blank Frequency issues Pixel issues Graphic capability

10. Driver Upgrade As recommended by Microsoft As recommended by hardware vendors

11. Mother Board Defective terminal or sockets PCB lines problem Bios Issues Battery problem Input output communication problem Partial short circuiting

12. Flowcharts Power supply InputsHardrive CPU Motherboard MemoryOutputs

13. Basic Repair, Troubleshooting and Diagnostic Routines Adware / Spyware / Malware / Virus Detection, Removal & Prevention Computer Check ups Hardware Diagnostics, Installations, Expansions, Repair & Upgrades Software Diagnostics, Installations, Expansions, Repair & Upgrades Networking Preventive Maintenance System Diagnostics System Installation & Setup

14. Human Perception Environment Agent seeaction