1.2.4 Question the Obvious - Quick Notes

Simple problems can cause complex-seeming issues, so do not skip the obvious. Be systematic and detail-oriented.

How to Isolate the Problem

• Step through what should happen yourself or watch the user do it to find the exact failure point.
• If that does not work, break it into categories: power, hardware, drivers or firmware, software, network, and user actions.

PC Troubleshooting Order

1. Determine whether it is a hardware or software issue.
2. Identify which hardware subsystem may be involved, such as the hard drive, power supply, or RAM.
3. Check the physical unit or connectors and cabling. For software issues, try uninstalling and reinstalling or performing file system repair.
4. Test your theory.

Pro Tip

Keep a known good duplicate cable or device on hand so you can test by substitution.