We recently showed you a fun (but accurate) tech support cheat sheet courtesy of popular web comic xkcd. If hardware is more your problem, this series of (non-comic) interactive charts can help you troubleshoot some common hardware problems.
The flowcharts are the creation of author Morris Rosenthal. Morris has created detailed, interactive charts for everything from hard drive failure to CD and DVD troubleshooting to modem failure.
I'm by no means the resident hardware expert at Lifehacker HQ, but the charts offer an easy way to diagnose and resolve some basic problems for anyone from beginners to the more hardware-savvy folks out there.
Hit up the link to see all eight diagnostic charts in action.