If your computer won't power on, there may be several reasons. Here are some troubleshooting steps you can follow to try to identify the issue and get your computer up and running:

1. Check the power source: Make sure that the power outlet or power strip connected to the computer is functioning properly. You can do this by plugging in another device to see if it turns on. If the outlet or power strip is not working, try plugging the computer into a different outlet or power strip
2. Check the battery: If you're using a laptop, make sure the battery is charged and properly inserted. Try removing the battery and powering the laptop using only the power cable.
3. Check the power cable: Make sure that the power cable is plugged into the computer and the power source firmly. Sometimes, the power cable may have come loose or been accidentally unplugged. Make sure that the power cable is not damaged or frayed. If it is, you may need to replace the cable.
4. Check the power button: Sometimes, the power button on the computer may not be working correctly. Make sure that the power button is not stuck or jammed. You can also try pressing and holding the power button for a few seconds to see if the computer turns on.
5. Check the power supply: The power supply unit (PSU) is responsible for converting the AC power from the outlet into DC power that the computer can use. Look for any signs of damage or burning, such as burn marks or a burning smell. There is also a switch on the back of the PSU that must be turned on. This is one of the most common reasons why a computer won't power up.
6. Check the motherboard: The motherboard is the computer's main circuit board and is responsible for connecting all the components. Look for any signs of damage or burning, such as burnt-out capacitors or melted components. You can also try resetting the BIOS by removing the CMOS battery and then replacing it.
7. Check the RAM: The RAM (random access memory) stores data your computer needs to access quickly. Try removing the RAM and then reseating it in its slot. You can also try using a different RAM module.
8. Check the hard drive: The hard drive is where the computer stores all its data. Listen for any unusual clicking or grinding noises coming from the hard drive. You can also try connecting the hard drive to another computer to see if it is detected.
9. Check the graphics card: If the computer has a separate graphics card, it may be responsible for the problem. Try removing the graphics card and then reseating it in its slot. You can also try using a different graphics card.

If these troubleshooting steps didn't work, contact the OKC PC Guy today to resolve your computer issues. 405-593-8260 or send an e-mail to: help@okcpcguy.com.