This process accomplishes the same thing as hitting the power button on your case when properly connected, or using an onboard power button on your motherboard. Locate the twopower switch headers on your motherboard.
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These small headers are often labeled something like PWR_SW, with + and – symbols. If the power button from your case is already wired to these headers, you’ll need to remove those cables.
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Consult the motherboard manual if you’re having trouble locating thepower switch headers, as the labelling can sometimes be difficult to spot with the naked eye. If your motherboard doesn’t have an onboard power button, you can use a screwdriver to jump-start your system. Check to see if your motherboard has an onboard power button. Not all of them do; consult your motherboard manual if you’re unsure or having trouble locating it. Using this power button will turn on the system just as a properly wired power button would.
- To do this, you’ll need to press F8 repeatedly as your computer boots up.
- Chances are, though, you’ll have to boot into Safe Mode to fix the problem.
- If the monitor displays the first startup screen but then goes blank, continue to the next step.
- An alternative is to use an external drive, such as a DVD or flash drive.
- If the monitor still displays a black screen or displays a No signal message, the video hardware may be faulty and needs to be replaced or serviced.
If, after following the steps in the sections above, your computer still receives no power, the power supply may have failed. If you don’t want to replace it yourself, we suggest taking the computer to a repair center. Completely ruling out any of those hardware problems is its own troubleshooting workflow. If you have the luxury of spare parts, now is the time to swap them in for your previously installed components and see if that helps. Testing with a different motherboard can be more challenging, as you have to reinstall the CPU and cooler , but having spare hardware is the easiest way to troubleshoot.
If your PC won’t turn on but motherboard light is on, a potential culprit is the power button on the case itself or the wires connecting that button to the motherboard. For example, if the POST code indicates a memory initialization error, you would know to start with troubleshooting youtubedownloader.downloadsdb.com/ your RAM. Many motherboards have a hexadecimal display that will display the code and provide insight into where to begin the diagnostic process. If your motherboard doesn’t have a built-in display, you can get a POST test card that installs into a PCIe slot and displays that code for you. Though it can be hard to pinpoint why your PC is failing to boot, there are built-in tests that can help.
You’ll want to make sure your PSU is powering your motherboard and CPU, but otherwise, your system should be stripped of any non-essential hardware. Of course, you’ll have to press the reset button instead of power button to turn your computer on, but it’s a useful temporary solution. Contact your case manufacturer for a more long-term solution.
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If your system turns on when using the onboard power button, or when jumping the headers with a screwdriver, it could be that your case is the problem. If your case has a reset button, you’ll find it’s wired to the reset switch headers near the power button headers. Try replacing the cables to your power button headers with those from the reset button. They operate in the same way, and if the problem is the power button in your case, wiring the reset button to the power switch headers might circumvent this issue. Lightly touch a metal screwdriver to the two power switch header pins, and the system will turn on if everything is connected correctly.
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