When you purchase electronics hardware, most reputable manufacturers will have run your DVD player or new TV through some kind of burn-in procedure as most electronics components will go faulty within the first two weeks of use. It's more appropriate to run a burn-in test than have to replace a faulty device. If you design custom PCs, you'll probably find that you need to run your own stress-induced PC burn-in test procedure. Your PC will be less likely to be returned due to faulty hardware.
PassMark BurnInTest 5.3 is a tool that will enable you to run a number of software-based procedures to examine the hardware components within a PC you've either just received or have built for another person. You can also test some of your peripherals that are connected through USB ports. Indeed, if you think you have hardware problems in the future, you could run PassMark BurnInTest to see if you are correct.
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