Test Your Pc Hardware

  
Stress-test your PC hardware
Why stress-test? 
Simple: To ensure the reliability and stability of your system. Even if a computer boots up and performs well under normal usage, fickle hardware can cause woes when you step up to heftier tasks, such as gaming or video editing. 
Stress-testing software places your components under an intense workload to simulate a worse-case scenario; if a component crashes, hangs, or otherwise fails a dedicated stress test, there's a good chance that it won't be reliable under a heavy everyday load.
 It's best to uncover unstable components sooner rather than later, while they're still under warranty.

1 Push your CPU with Prime95

2 Ramp up your RAM When it comes to seriously testing RAM, only one option is worth considering: MemTest86+

3 Verifying your video card's stability

Benchmarking tools abound, but FurMark was designed specifically to give your GPU a stress-inducing workout and punishes graphics cards much harder than the average game.  

Original Source

PCWORLD

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WARNING

While many components will automatically shut down if they overheat, not all will, and you want to pull the plug on your testing if your hardware hits dangerous heat levels. If you see CPU temperatures starting to creep north of 70 degrees Celsius, or graphics card temperatures around 105°C , stop the test and add more cooling to your computer.