Hp laptop turns on then off


If your computer system turns off instantly or even within a few seconds after it is turned on, tbelow can be a number of feasible concerns. To continue, we recommfinish going with each section below to help find a solution to your trouble.

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If the computer has no power or doesn"t rotate on, see: Why will not my computer system revolve on? If the computer stays on for a number of minutes before it turns off, see: Why does my computer system rotate off without warning?


Some of the actions below require you to open up the computer instance. While functioning in your machine, always be aware of the dangers of ESD.

Loose cable

Make sure all cables inside the computer system case are firmly attached to the motherboard and each component. Check the IDE cables and SATA cables, which are connected to the hard drive, CD or DVD drive, and also floppy drive (if present). Check both ends of each cable and also make certain they are firmly attached to the component and also the motherboard. Turn on the computer system and also test to watch if this resolves the worry.


Sometimes, the finest way to verify a cable is not loose is to disconnect and also reaffix (reseat) the cable on both ends.

Surge protector issues

Surge protectors and battery back-up systems deserve to go negative over time, causing diminished power circulation to the computer. As computer systems need a particular amount of power to run, as well good a reduction can force the computer to shut dvery own.

If this instance uses to your computer, unplug its power cord from the surge protector or battery back-up unit, and also plug it directly into a wall outlet. Turn on the computer system to watch if the trouble persists. If the computer stays powered on, the surge protector or battery back-up unit is bad and also demands to be reinserted.

See more: An Exception Breakpoint Has Been Reached, The Exeption Breakpoint

Electrical short

An electric short in a computer, which may reason power concerns, happens when pieces of steel cause a route for electricity to flow through that shouldn"t exist. Computers are full of screws, as they hold practically eexceptionally inner component in area, and also from time to time, they can come loose. Lift your computer and also gently revolve it while gently shaking it from side to side. If you hear what sounds like small rocks banging roughly, you likely have actually loose screws inside the situation. Open the computer up and remove them.

Memory issue

Verify the memory modules are properly seated in the memory slots on the motherboard. To perform this, open the computer, rerelocate the memory modules from their slots, and gently reseat them. It likewise is important to note that memory modules are installed in pairs, and also occasionally in corresponding slots, which are designated by equivalent colors. Make sure the modules are firmly seated and the clamps on both sides of the modules snap into location. Plug in the power cord and revolve the computer on to watch if the issue is readdressed.

Power supply issues

Power supply voltage switch

The power supply voltage switch, a tiny red switch on the back of the power supply, might be on the wrong establishing. If this switch"s setting is not correct for your nation, your computer may immediately power down. The initially point to perform is to consult the Voltage Valet website to discern your country"s correct voltage settings. Then, make certain your power supply voltage switch is collection accordingly.

Possibly defective power supply

Verify the power supply is practical. A faulty power supply deserve to cause not sufficient, if any type of, power gaining to the motherboard, leading to the computer system to shut off immediately or not revolve on at all. Many kind of virtual computer retailers offer power supply experimentation systems for under $20. In the occasion of a bad power supply, the just remedy is to rearea it with a brand-new one. Fixing a power supply is not an economical solution, if feasible at all.


If your computer system is brand-new or the motherboard was newly reput, make certain the thermal compound is effectively applied to the processor. If the warm is not being effectively moved from the processor to the heat sink, it have the right to overwarmth extremely quickly. Because of the potential of damage to hardware that overheats, if the computer system exceeds a set temperature, it is immediately turned off.

See more: Windows 10 Safe Mode With Networking No Internet, How To Start Windows In Safe Mode: Geek Squad

Motherboard issue

The last point to check is the motherboard; yet, this have the right to be fairly tough considering that the concern might be all over in the circuitry. A faulty, failing, or malfunctioning circuit or component (e.g., capacitor) deserve to reason the computer to shut off immediately or not rotate on at all. If namong the recommendations above help resolve the concern, we indicate sfinishing the computer system to a repair shop or replacing the motherboard.