Computer Troubleshooting and Basic Repair
Power off computer and disconnect all cables
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Tools Needed
- screwdriver set
- anti-static wrist strap
- compressed air
- thermal paste
- cable tester
Parts & Materials
Available from multiple retailers
Available from multiple retailers
Available from multiple retailers
Available from multiple retailers
Available from multiple retailers
ā ļø Safety First
š§ Tools Needed
š¦ Materials
š Step-by-Step Instructions
1. Power off computer and disconnect all cables
2. Check all external connections and power cord
3. Listen for unusual noises during startup
4. Check if computer reaches BIOS/boot screen
5. Test with minimal hardware configuration
6. Reseat RAM modules and expansion cards
7. Check hard drive connections and operation
8. Clean dust from fans and heat sinks
9. Test power supply voltages if equipped
10. Boot from external drive to test hard drive
11. Run built-in hardware diagnostics if available
š” Pro Tips
ā Common Mistakes to Avoid
š Troubleshooting
Computer won't start
*Cause:* Power supply, motherboard, or RAM issue
*Fix:* Check power connections, reseat RAM, test power supply
Computer starts but no display
*Cause:* Graphics card or monitor connection
*Fix:* Check monitor cables and reseat graphics card
Computer runs slow
*Cause:* Insufficient RAM, full hard drive, or malware
*Fix:* Check available storage, scan for malware, consider RAM upgrade
ā Frequently Asked Questions
Q: How often should I clean my computer
A: Every 3-6 months depending on environment, more often in dusty areas
Q: Can I upgrade my laptop
A: Limited upgrades possible - usually RAM and storage only