Computers are technical devices and some problems may occur during use. Although these problems are often annoying, defects that can be easily fixed may also occur. In this regard, the computer user needs to understand a little of the computer’s “language.” One of the mentioned problems is that although there is power in the case, the computer does not start. This situation can have several causes.
Computer Crash
Computers are devices that, due to frequent use, sometimes need to be formatted. When the computer’s memory is occupied by viruses or other similar problems, a situation called operating system crash occurs. That is, the operating system cannot run the installed programs. Basically, it “loses its mind” and everything becomes chaotic. In this case, the computer does not start. If you have format CDs and drivers, you can easily format at home or request technical support from any computer service.
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Motherboard Failure
The most important and expensive component of the computer is the motherboard. Failure of this component means a repair as costly as buying a new computer. If we assume the worst has happened and the motherboard is defective, the computer will not start at all. When you press the power button, the computer emits various beeps indicating motherboard failure. In this case, you have no option but to repair or replace the motherboard.
Monitor or Video Card Failure

The video card converts commands received from the processor into visual elements and sends them to the computer monitor. Failure of this component, removing it from the slot, or other similar problems can prevent the computer from starting. Removing the video card from the slot is a problem, as is losing the functionality of the slot, which can prevent the computer from starting. Monitor failure does not prevent the computer from starting. The computer starts, but you will not see anything on the screen.
Fan Failure
Computers have fans installed to cool the operating system. Fan failure can cause the computer to overheat. To protect the motherboard, the computer shuts down automatically and does not start for a period of time. So, if the fan is defective, you may not be able to start the computer. In such cases, immediate replacement of the fan or using an external cooler can solve the problem.

