Why does my figurer power on and then immediately turns off?

Updated: 02/01/2021 past Computer Hope

Power button

If your figurer turns off immediately or even inside a few seconds afterwards it is turned on, at that place could exist several possible bug. To go along, we recommend going through each section below to help find a solution to your trouble.

Caution

Some of the steps below require you to open the reckoner case. While working in your machine, ever exist enlightened of the dangers of ESD.

Loose cable

Make sure all cables inside the computer case are firmly fastened to the motherboard and each component. Check the IDE cables and SATA cables, which are continued to the hard drive, CD or DVD drive, and floppy drive (if nowadays). Cheque both ends of each cable and make sure they are firmly attached to the component and the motherboard. Plow on the computer and test to come across if this resolves the issue.

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Tip

Sometimes, the best way to verify a cablevision is not loose is to disconnect and reconnect (reseat) the cable on both ends.

Surge protector issues

Surge protectors and battery back-up units can go bad over fourth dimension, causing reduced power flow to the computer. As computers require a specific amount of power to operate, as well nifty a reduction can force the computer to shut down.

If this situation applies to your computer, unplug its power cord from the surge protector or battery back-up unit, and plug information technology straight into a wall outlet. Plow on the computer to meet if the trouble persists. If the computer stays powered on, the surge protector or battery back-up unit of measurement is bad and needs to exist replaced.

Electrical short

An electrical short in a computer, which may cause power issues, happens when pieces of metal cause a path for electricity to flow through that shouldn't exist. Computers are full of screws, as they agree about every internal component in place, and from time to time, they can come loose. Elevator your computer and gently rotate it while gently shaking information technology from side to side. If you hear what sounds like small rocks banging effectually, you likely have loose screws within the case. Open the computer upwardly and remove them.

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Memory issue

Verify the memory modules are properly seated in the memory slots on the motherboard. To do this, open the computer, remove the retentivity modules from their slots, and gently reseat them. It also is important to note that memory modules are installed in pairs, and sometimes in matching slots, which are designated by matching colors. Make certain the modules are firmly seated and the clamps on both sides of the modules snap into identify. Plug in the power cord and turn the computer on to run across if the issue is resolved.

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  • How to install reckoner memory (RAM).

Ability supply problems

Ability supply voltage switch

The power supply voltage switch, a small red switch on the back of the ability supply, may exist on the incorrect setting. If this switch's setting is not correct for your country, your estimator may automatically ability downwards. The commencement thing to do is to consult the Voltage Valet website to discern your country's right voltage settings. Then, make certain your ability supply voltage switch is fix accordingly.

Possibly defective ability supply

Verify the ability supply is functional. A faulty power supply tin can result in not enough, if any, power getting to the motherboard, causing the computer to shut off immediately or not plough on at all. Many online computer retailers sell power supply testing units for nether $20. In the event of a bad power supply, the simply remedy is to replace it with a new one. Fixing a power supply is not an economical solution, if possible at all.

Overheating

If your figurer is new or the motherboard was recently replaced, make sure the thermal compound is properly applied to the processor. If the heat is not being properly transferred from the processor to the oestrus sink, it can overheat very rapidly. Considering of the potential of damage to hardware that overheats, if the computer exceeds a set temperature, it is automatically turned off.

Motherboard consequence

The last thing to bank check is the motherboard; however, this can exist rather hard since the issue could be anywhere in the circuitry. A faulty, failing, or malfunctioning circuit or component (east.grand., capacitor) can cause the computer to shut off immediately or not plough on at all. If none of the recommendations to a higher place assist resolve the event, nosotros propose sending the figurer to a repair store or replacing the motherboard.