![]() Putting aside blatant boot errors caused by innocuous misconfiguration (that most of times can be diagnosed with a buzzer, or from LEDs and seven-segment displays on more premium models), there are infinitely more insidious ways electrical components here can fail. The other big source of nebulous, whimsical and unpredictable issues is the motherboard. If this hamper system stability in any way, swapping the PSU with a different known working one should be enough to rule out or not the problem. If one is not available, try to load the PSU as much as possible, generally by running all stress tests and connecting as many external devices as available (preferably in "cold" conditions). The best way to test a power supply is with a special PC power supply tester. Sometimes electrical noise (buzzing) may be heard though. Power supplies do not indicate whether they are having problems because they generally do not include self-testing hardware. If the power supply is not stable, it is futile to test other parts of the system because they will yield inconsistent results. Non-deterministic problems are sometimes caused by a bad power supply unit (PSU). ![]() The first question to be asked when a crash occurs is whether the PC is stable without the game running. Crashes are often caused by problems where two or more parts interact. Many parts of a PC work together to run a game. Windows XP: press ⊞ Win+ R, type msinfo32 and press ↵ Enter.Windows Vista and later: open the Start Screen/Start Menu, type msinfo32 and press ↵ Enter.Windows XP: press ⊞ Win+ R, type dxdiag and press ↵ Enter.Windows Vista and later: open the Start Screen/Start Menu, type dxdiag and press ↵ Enter.
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