A very common problem for computer users
It happens with most of the computer users their machine suddenly shutdown and restart fine without showing any error message or valid reason. This happens because of overheating. If your PC frequently shuts down, instantly without showing any error then you may need to replace the power supply. PC monitors the CPU temperature so in case of overheating it shutdown the machine to prevent from any harm for CPU, because it is a vital combination of delicate circuits. An easy way to check current CPU temperature is, in the my computer properties go to CPU World but it’s only available in Vista. A free program for all the users is derived by Alfredo Milani Comparetti’s SpeedFan, displays in system tray to fine-tune the heat and balance the power.
Few steps when you face problem like that
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Check fans of CPU are spinning smoothly or not, if not then make your PC free of dust and clean air vents and also check isn’t any wire or cable blocking the fan.
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Make sure all the fans of CPU should work properly. When the PC off Spray compressed moisture-free air into the vents to remove dust.
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After all still facing the same problem then take it to professional, other than overheating it may be the driver fault so keep updating your drivers.
