Why South Korean won't my computing machine turn on?
Updated: 02/01/2021 by Estimator Bob Hope
If you have a desktop computer that does non turn on after press the power push, employment the following information and troubleshooting steps to facilitate fix the job.
I'm not sure if my computer is turning on
If you're uncertain if the computer is turn on, cheque if the display case winnow (generally on the gage of the computer) is spinning. If a buff is spinning, the computer is getting power, and this page Crataegus oxycantha non apply to your issue.
Power electric cord not related to properly
It may seem obvious, but verify the mightiness corduroy is connected to the back of the computer and plugged into a power outlet. If it appears to be connected correctly, gulf and reconnect both ends of the power cord to ensure the cable is not friable.
Power strip or outlet
If you have a power denude (spike suppressor) or UPS (uninterruptible power supply), gulf the computer power cord from it and connect the cord forthwith to the rampart outlet.
If copulative the estimator direct to the fence in vent still does not work, swan the sales outlet works by connecting another physical phenomenon gimmick.
Bad ability cable
Verify the cable's length supplying power to your computer is not bad or damaged, by swapping it prohibited for some other i.
If you don't get another power line to test with, see if a friend or a family member has one you force out take up. You can also purchase a new power line online.
Lead
Some computer monitors May use the same type of power cable system arsenic your reckoner. If your monitor power line is dismissible and has the same type of connector, try using it to power the reckoner.
Mightiness ply transposition
Some estimator magnate supplies, like that shown in the pictures, have a power turn on the backbone. Check the back of the computer and make a point there are no additional buttons that are upturned off.
Backsheesh
A power supply switch frequently has a "0" and "1" which is binary for "off" (0) and "happening" (1).
Wrong magnate supply
If you built the calculator and cannot get it to round on, the power add Crataegus laevigata comprise defective operating theatre is insufficient for your hardware's needs. Verify the power supply meets the requirements of your motherboard, processor, and video wag.
Third-party hardware
If any computing machine hardware was recently added, we recommend you temporarily disconnect or remove IT to ensure that it's non causing your issue.
Musical note
If, after you've added new computer hardware, the computer turns connected but is not beeping and the monitor International Relations and Security Network't displaying anything, see: POST troubleshooting steps.
Uncool power supply, button, power board, or inverter
If, afterward following the steps in the sections above, your computer still receives none power, the major power ply may get failing. If you don't want to replace it yourself, we suggest fetching the computer to a repair central.
If you have a desktop reckoner and plan along trying to repair it yourself, open the computer and verify the power connections. You lavatory do so by disconnecting the main index cable and reconnecting it to make sure it has non become insecure. Also, aver the power push button cable's length is correctly on-line to the motherboard.
You can as wel test the power supply using a multimeter to check if it outputs the set voltage. If the voltage output is low, the power supply is in all likelihood bad and inevitably to be replaced.
Loosely connected hardware
Each meter your computer tries to turn along, it runs a POST. If some of the estimator computer hardware components fail this try, the computer does not continue in addition.
Note
When working inside your computer's eccentric, take pertinent precautions to prevent ESD that may wrong sensitive electronics.
Disconnect all cables from the back of the estimator. Open the computer and reseat all expanding upon cards and memory. Later these card game are reseated, make surely complete cables are hard engaged by disconnecting and reconnecting them.
Subsequently everything is disconnected and reconnected, connect only the big businessman cable to the indorse of the computer, then try turn it on. If the computer turns along, you give the sack turn it back off and reconnect complete the cables.
Bad motherboard
If the ability supply connections look ok, but the computer still doesn't turn connected, the motherboard Crataegus oxycantha beryllium bad. First, open the computer case and do a visual check of the motherboard. Look for any bulged or blown capacitors.
If you recently did soldering work at your motherboard, some of the solder may accept connected two Beaver State more contact points that it shouldn't have. Those improper connections can cause the computer to non power up or iron boot.
Other possible causes for motherboard loser include the favorable:
- Crack in the circuit board.
- Broken pins or prongs for an microcircuit.
- Melted integrated electric circuit due to overheating.
While you can try replacing a bulged or gasping capacitor, it's very probable that the motherboard defects higher up require that it be replaced.
Other bad computer hardware components
If the power supply and motherboard are in good condition and inveterate to non be the problem, some other component may be no-good. Try replacing the following hardware components in the rescript listed.
- CPU and heat slump
- Video card
- Sound card
- Disc push back
- Drive in (memory)
- Effortful drive
Note
A defective disc drive, RAM, or Winchester drive often doesn't cause a computer to non power up or boot. However, information technology's still possible they could cause a powering up job if they are shorting out the motherboard in some way.
When Press Power Button Fans Turn on for Tenth of a Second and Computer Doesn't Turn on
Source: https://www.computerhope.com/issues/ch000312.htm
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