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

Updated: 02/01/2021 by Estimator Promise

Power button

If your computer turns off immediately or even inside a few seconds after it is turned on, there could be several possible problems. To go on, we recommend going through each section below to help observe a solution to your trouble.

Caution

Some of the steps below crave you lot to open the estimator case. While working in your automobile, e'er exist aware of the dangers of ESD.

Loose cablevision

Brand sure all cables inside the reckoner instance 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 floppy bulldoze (if present). Check both ends of each cable and make sure they are firmly fastened to the component and the motherboard. Turn on the estimator and exam to run across if this resolves the issue.

  • How practice I open my figurer case?

Tip

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

Surge protector problems

Surge protectors and battery redundancy units can become bad over time, causing reduced power flow to the computer. Equally computers crave a specific amount of power to operate, too dandy a reduction tin force the calculator to shut down.

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

Electrical brusque

An electrical brusque 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 hold nearly every internal component in place, and from time to time, they tin come loose. Lift your computer and gently rotate it while gently shaking it from side to side. If you hear what sounds like modest rocks banging around, you likely have loose screws within the case. Open up the computer up and remove them.

  • How do I open my computer instance?

Retentiveness issue

Verify the retentiveness modules are properly seated in the retentivity slots on the motherboard. To do this, open the calculator, remove the memory modules from their slots, and gently reseat them. Information technology likewise is important to note that retentiveness modules are installed in pairs, and sometimes in matching slots, which are designated by matching colors. Make sure the modules are firmly seated and the clamps on both sides of the modules snap into place. Plug in the power cord and plough the computer on to meet if the issue is resolved.

  • How do I open my reckoner case?
  • How to install figurer memory (RAM).

Power supply issues

Power supply voltage switch

The power supply voltage switch, a small carmine switch on the dorsum of the power supply, may be on the wrong setting. If this switch'due south setting is not right for your land, your computer may automatically power downwardly. The first thing to do is to consult the Voltage Valet website to discern your state's correct voltage settings. Then, make sure your power supply voltage switch is gear up accordingly.

Possibly defective power supply

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

Overheating

If your computer is new or the motherboard was recently replaced, brand sure the thermal compound is properly applied to the processor. If the estrus is non being properly transferred from the processor to the heat sink, information technology tin overheat very rapidly. Because of the potential of impairment to hardware that overheats, if the figurer exceeds a set temperature, it is automatically turned off.

Motherboard effect

The last thing to check is the motherboard; however, this can be rather difficult since the issue could be anywhere in the circuitry. A faulty, failing, or malfunctioning circuit or component (e.g., capacitor) can cause the computer to close off immediately or not plough on at all. If none of the recommendations above help resolve the effect, we advise sending the figurer to a repair store or replacing the motherboard.