There can be many reasons why your computer keeps shutting down. You first need to diagnose the exact cause of the problem and then FIX it. The following may be some of the problem.
1.VIRUS
There are higher chances for your system to be switched off due to the interference of a virus. The virus gets into the system and fiddles with crucial sections of the operating system, which may cause it to shut down automatically. You need to install a good antivirus software and get the system scanned thoroughly for any malware and viruses.
2.OVERHEATING
As with the case of dust getting collected in the power supply, the motherboard and the processor can also collect dust, which may be the reason for their overheating. You need to open the cabinet and clean the dust off the parts. The CPU board and the processor can also overheat because of many applications running. If this is the reasons, then it is suggested to keep the number of running applications as low as possible or increase the size of Random Access Memory (RAM)
3.POWER SUPPLY/SYSTEM
The power supply unit is an equipment that is installed in the cabinet to provide power to the system for operation. Your system may start rebooting if there is not enough power supplied to it for handling the programs running. If you are running intensive software, such as PC games, the system would require more power than what is actually available.
4.AUTOMATIC RESTART SETTING
If you are using Windows XP os, there is a setting that indicates the system to reboot if it detects an error in the system's operation. In order to check if this is the problem click on Start >>>Control Panel>>>Performance and Maintenance>>>> Click System >>> Advanced option >>> Settings >>> Start up and Recovery section.Here You will find an Automatically restart option which you need to be unchecked for preventing the system from rebooting.
You also need to check if the power cables are connected properly to the cabinet and to the UPS as loose connections can also be a reason for system shutdown.
1.VIRUS
There are higher chances for your system to be switched off due to the interference of a virus. The virus gets into the system and fiddles with crucial sections of the operating system, which may cause it to shut down automatically. You need to install a good antivirus software and get the system scanned thoroughly for any malware and viruses.
2.OVERHEATING
As with the case of dust getting collected in the power supply, the motherboard and the processor can also collect dust, which may be the reason for their overheating. You need to open the cabinet and clean the dust off the parts. The CPU board and the processor can also overheat because of many applications running. If this is the reasons, then it is suggested to keep the number of running applications as low as possible or increase the size of Random Access Memory (RAM)
3.POWER SUPPLY/SYSTEM
The power supply unit is an equipment that is installed in the cabinet to provide power to the system for operation. Your system may start rebooting if there is not enough power supplied to it for handling the programs running. If you are running intensive software, such as PC games, the system would require more power than what is actually available.
4.AUTOMATIC RESTART SETTING
If you are using Windows XP os, there is a setting that indicates the system to reboot if it detects an error in the system's operation. In order to check if this is the problem click on Start >>>Control Panel>>>Performance and Maintenance>>>> Click System >>> Advanced option >>> Settings >>> Start up and Recovery section.Here You will find an Automatically restart option which you need to be unchecked for preventing the system from rebooting.
You also need to check if the power cables are connected properly to the cabinet and to the UPS as loose connections can also be a reason for system shutdown.
