A computer can be a window to the world, but first you need to turn it on. If you're having trouble, here are some tips.
Steps
Step 1. Check that the power cord is plugged in (both ends)
Step 2. Make sure the computer is turned off and grounded, open the case and check that the power button reaches the two right pins of the motherboard
Check the pin configuration on the front of the case with the documentation that came with the motherboard. Turn the computer switch back on. Find and press the start button to launch it.
Step 3. If the computer does not turn on, try unplugging them for a few minutes and do not touch it
This can be helpful in some cases, but this solution indicates a problem with the power supply. Find a replacement right away.
Step 4. Check if the CPU fan rotates when you turn on your PC
To do this, place your ear close to the case. If you hear a buzz, the fan is almost certainly active. If, for some reason, the fan does not start, your CPU will overheat and the computer will not turn on until it cools down. If you smell acrid smoke, some components of your computer (probably the motherboard) may have burned out. You will need to replace them.
Step 5. Try disconnecting everything from the power supply except the motherboard (CD player, hard drives, auxiliary power supply for the video card, etc.)
). If the computer boots, it starts adding devices until the fault is found.
Step 6. If you haven't solved the problem, take your computer to a qualified technician
Advice
- In some countries (such as the UK), the plug has a fuse. If the fuse blows, it does not allow current to flow. These types of fuses are quite common and you may have one around your house on some old computer. They are very distinctive and interchangeable. You should also try to power another device from the computer outlet to verify that it is transmitting power. If the socket is no longer active, change the socket or fix the problem with the electrical system, if necessary with the help of a technician.
- Some computers will not work if they are designed for a different combination of discs. Check jumper settings and master-slave designations.
- Make sure you have turned the computer switch back on. Symbols 1 and 0 are binary values for open or closed. 0 is Open (i.e. off) and 1 is Closed (lit).
- If you have your computer's manual, it's a good idea to read it and follow its directions. Manuals often include troubleshooting tips, with instructions specific to your system.
- Different computers turn on in different ways. Some have a switch on the back (or side) of the case, some have a single button on the front, others have a switch on the back and a button on the front, etc. Some (such as some Macs with Apple displays) can be accessed with a button on the display. Note though, that most computers CANNOT be turned on simply by turning on the monitor, so don't assume that if your monitor is on your computer should work magically.
Warnings
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Make sure your power supply is suitable for the voltage used in your country. For use in the USA, Canada, Japan, Mexico and other American countries, this voltage should be 110V, 115V or 120V. In most of the rest of the world 240V. If you don't know which voltage to use, contact your electricity supplier and ask. Setting a PSU to a lower voltage than your computer requires can cause severe damage to your power supply and motherboard.
