This YouTube video tells you how to use the device to check your cable’s health: If you want to be 100% certain that your cables are healthy, you need a multimeter.

Run your fingers along with the cables and feel for tears. Once you’ve checked the connection, see if your cables are healthy. No matter which type of cable you’re using, it should fit properly on both ends. If you’re sure about the health of your PSU, checking the monitor is the priority.Įnsure the power and data cables are plugged in. However, sometimes checking the monitor is the best solution to what seems to be a booting problem. The monitor is the device that displays images and texts processed by the computer’s video card.īecause its role is only to display information, it doesn’t occur to most people that the monitor may be the reason their computer won’t turn on. If the CPU overheats, it will shut down on its own, so you may want to ensure all the fans, especially the CPU fans, are working properly. You may never suspect that faulty fans can create power issues, but they have a crucial job of cooling down the CPU and the entire system. You could plug other appliances into the surge protector or plug your computer into a wall outlet and see if you can turn it on. If you’ve plugged the system into a surge protector, make sure it isn’t faulty. Open the case and inspect all the wires to ensure you’re not losing any connections. You may not notice any visible faults in the power button, but the internal wirings may be loose or cut off. Do you get electricity from a wall outlet? Plug the computer into a different outlet to rule out this possibility. Check if it hasn’t been accidentally switched off.

It’s located under or next to the PSU’s power output. The power supply itself has an on/off switch, which is different from the PC’s power button. Plus, make sure it’s firmly plugged into the wall outlet as it may come loose over time.

Ensure the power cable is functioning and healthy by physically inspecting it for signs of damage. Sometimes the solution is right in front of you, but you ignore it because it sounds too simple.īefore moving on to more serious issues, make sure you rule out the following potential causes: Read on as we help you identify the cause and fix this issue.Ĭomputer Not Turning On, Power Supply Okay (Causes, Fixes) What if it’s completely healthy and your computer still doesn’t turn on?Īlthough the problem may be strange at first, solving it isn’t always as tough as it looks. The power supply is usually the first culprit when your PC doesn’t turn on.

Device could not be powered up