Why does my computer ability on then immediately turns off?

Updated: 02/01/2021 by Calculator Hope

Power button

If your computer turns off immediately or even within a few seconds subsequently it is turned on, there could be several possible issues. To proceed, we recommend going through each department below to aid find a solution to your problem.

Caution

Some of the steps beneath crave you to open up the computer instance. While working in your machine, e'er be aware of the dangers of ESD.

Loose cable

Make sure all cables within the computer case are firmly fastened to the motherboard and each component. Cheque the IDE cables and SATA cables, which are continued to the hard drive, CD or DVD drive, and floppy bulldoze (if nowadays). Check both ends of each cablevision and brand certain they are firmly fastened to the component and the motherboard. Turn on the calculator and test to see if this resolves the event.

  • How do I open my estimator instance?

Tip

Sometimes, the best manner to verify a cable 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. Equally computers require a specific amount of ability to operate, too great a reduction can force the reckoner to shut down.

If this state of affairs applies to your computer, unplug its ability cord from the surge protector or battery back-upwards unit, and plug it directly into a wall outlet. Turn on the figurer to see if the problem persists. If the computer stays powered on, the surge protector or battery redundancy unit is bad and needs to be replaced.

Electrical brusque

An electric short in a reckoner, 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, equally they hold nearly every internal component in identify, and from time to time, they can come loose. Elevator your calculator and gently rotate information technology while gently shaking it from side to side. If you hear what sounds like small rocks banging effectually, you likely have loose screws within the case. Open the calculator up and remove them.

  • How do I open up my computer instance?

Retentiveness issue

Verify the memory modules are properly seated in the retention slots on the motherboard. To do this, open the figurer, remove the retentiveness modules from their slots, and gently reseat them. Information technology also is important to notation that retention 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.

  • How practise I open my figurer case?
  • How to install computer memory (RAM).

Power supply bug

Power supply voltage switch

The ability supply voltage switch, a small red switch on the back of the power supply, may be on the wrong setting. If this switch'southward setting is not correct for your land, your calculator may automatically power down. The showtime thing to do is to consult the Voltage Valet website to discern your country's correct voltage settings. Then, make sure your ability supply voltage switch is set accordingly.

Possibly defective ability supply

Verify the power supply is functional. A faulty ability supply can result in non enough, if any, ability getting to the motherboard, causing the computer to shut off immediately or not turn on at all. Many online computer retailers sell ability supply testing units for under $20. In the outcome of a bad power supply, the only remedy is to supervene upon it with a new one. Fixing a power supply is not an economic solution, if possible at all.

Overheating

If your computer 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 heat sink, it can overheat very speedily. Because of the potential of damage to hardware that overheats, if the computer exceeds a fix temperature, it is automatically turned off.

Motherboard issue

The final affair to check is the motherboard; however, this can exist rather difficult since the outcome could be anywhere in the circuitry. A faulty, failing, or malfunctioning circuit or component (e.g., capacitor) can crusade the computer to shut off immediately or not turn on at all. If none of the recommendations higher up assist resolve the outcome, we suggest sending the reckoner to a repair shop or replacing the motherboard.