There are several possible reasons why a desktop, laptop, or tablet computer such as a Surface Pro fails to power on, so you must step through a complete troubleshooting procedure like the one we’ve outlined below.
Difficulty: AverageTime Required: Anywhere from minutes to hours depending on why the computer isn’t receiving powerWhat You’ll Need: Your AC adapter if you’re troubleshooting a tablet or laptop, and possibly a screwdriver if you’re working on a desktop
How to Fix a Computer That Shows No Sign of Power
Tips & More Information
Are you troubleshooting this issue on a PC that you’ve just built yourself? If so, triple-check your configuration! There is a decent chance that your computer isn’t powering on due to a misconfiguration and not an actual hardware failure.Did we miss a troubleshooting step that helped you (or might help someone else) fix a computer that’s not showing any sign of power? Let me know, and I’d be happy to include the information here.
Before starting a sometimes time-consuming troubleshooting process, make sure you’ve turned on every power switch and power button involved in your computer system:
Power button/switch, usually located on the front of a desktop computer’s case or the top or side of a laptop or tabletPower switch on the back of the computer, usually just on a desktopPower switch on the power strip, surge protector, or UPS, if you’re using any of them
If your computer starts getting power after doing this, something that you removed from the equation is the cause of the problem. You’ll likely need to replace your surge protector or other power distribution devices. If nothing improves, continue troubleshooting with the computer plugged into the wall to keep things simple. If your computer turns on after trying this, it means that your battery is the cause of the problem and you should replace it. Until you get it replaced, feel free to use your computer, so long as you’re close to a power outlet! A bad AC adapter is a common reason why tablets and laptops won’t turn on at all. Even if you don’t regularly use the power cable, if it has failed, it means that it hasn’t been charging your battery. A new CMOS battery will cost you well under $10, and you can pick one up just about anywhere that sells batteries.
