How can you check power to computer - Computers & Internet

1. Check the power cable: Make sure the power cable is properly connected to the monitor and to the power source.
2. Check the video cable: Make sure the video cable is properly connected to the computer and to the monitor.
3. Check the computer settings: Make sure the computer is set to the correct display settings for the monitor. You can typically do this by right-clicking on the desktop and selecting "Display settings."
4. Check the power source: Make sure the power source is working and that there is no problem with the outlet or power cord.
5. Check the power button: Make sure the power button on the right side of the monitor is not stuck and is functioning properly.
6. Try a different cable or computer: If possible, try connecting the monitor to a different computer or cable to see if the issue is with the computer or cable.

If none of these steps resolve the issue, it may be a problem with the monitor itself

Computer is not working. may be you should check all the cable is working or not ,one by one, and then check the Power Cord again.
All the power to the computer is fine. then it 's not the power supply's fault. So you must check the internal hardware such as: harddisk, motherboard, processor, memory etc.

check at any other power socket or plug any other working equipment on the same wall socket to check if the power is ok in the wall socket
if all ok then either your power cord to the computer is not properly plugged in the computer or the computer power supply may not be working.
you may then require technical assistance of computer mechanic.

if your computer is went off first you check its power cable .its battery if working in good then you check its power button its properly working push properly
if you have desktop computer check its power supply open its atx power connecter 24/pin in pin you green or black short it if supply fan on its mean your supply is oky
have a problem of mainboard supply regulater
its check with meter
first you replace power supply then check motherboard

try to go BIOS AND CHECK THE DISPLAY,IF THE DISPLAY IS OK THEN TRY BELOW
1.check the power connection of the computer
2.check the power connection for monitor or any loose connection.
still nothing is coming do the next.
turnoff the computer completely,disconnect the powercabel,disconnect all the external devices press and hold down the power switch on the tower for 30 seconds,reconnect the power restart the computer.

Try to do a power drain first by unplugging the piwer cable and then press and hold the power button for ten secs.after that plug the power button again then try to restart the machine.check for any indicators that the computer is getting power like sound coming offf the computer or if the cd/dvd drive is opening, check any lights on the tower or if the fan is running if not then you might need to have the computer checked.Power supply or the motherboard needs to be replaced.If the system is still under warranty then you can call your manufacturer for support.hope this helps...

Disconnect the Power cable / A/c adapter/Battery from computer.
Disconnect External peripherials.
Hold down the power button on the computer for 10 seconds.
Reconnect the power cable or A/c adapter and battery or the computer
Try to turn on the computer
check for Led's on the computer
If still no display ,shut down the computer,disconnect power cable.
Open the computer tower,remove memory modules,reconnect power cable and turn on the computer.If you get a beeping sound after turning on you should be getting beeping sound suggesting the mother board is not bad.Turn on the computer and disconnect power cable from computer.
Reseat 1 memory at a time if you have 2 memory module or if single memory module reseat in different memory slot,swap memory module.
Reconnect the power cable and turn on the computer if it boots to desktop possible issue with 1 of the memory module.
Disconnect the harddrive ide cable from the harddrive .Turn on the computer.
If still unable to power on .Shutdown the computer and disconnect power cable.Remove video card,sound card ,modem card if any .Connect just the vga cable from monitor to the integrated video port.
Connect power cable and turn on the computer.
If computer turns on possible issue with one of PCI or PCI express card.
If still unable to power on.Disconnect the power connector pin from the motherboard and reconnect it back.Turn on the computer check power power led on motherboard,also check if the processor fan is spinning. if no go then issue with motherboard.

Disconnect the Power cable / A/c adapter/Battery from computer.
Disconnect External peripherials.
Hold down the power button on the computer for 10 seconds.
Reconnect the power cable or A/c adapter and battery or the computer
Try to turn on the computer
check for Led's on the computer
If still no display ,shut down the computer,disconnect power cable.
Open the computer tower,remove memory modules,reconnect power cable and turn on the computer.If you get a beeping sound after turning on you should be getting beeping sound suggesting the mother board is not bad.Turn on the computer and disconnect power cable from computer.
Reseat 1 memory at a time if you have 2 memory module or if single memory module reseat in different memory slot,swap memory module.
Reconnect the power cable and turn on the computer if it boots to desktop possible issue with 1 of the memory module.
Disconnect the harddrive ide cable from the harddrive .Turn on the computer.
If still unable to power on .Shutdown the computer and disconnect power cable.Remove video card,sound card ,modem card if any .Connect just the vga cable from monitor to the integrated video port.
Connect power cable and turn on the computer.
If computer turns on possible issue with one of PCI or PCI express card.
If still unable to power on.Disconnect the power connector pin from the motherboard and reconnect it back.Turn on the computer check power power led on motherboard,also check if the processor fan is spinning. if no go then issue with motherboard. GOOD Luck.!!

Resolution:
Disconnect the Power cable / A/c adapter/Battery from computer.
Disconnect External peripherials.
Hold down the power button on the computer for 10 seconds.
Reconnect the power cable or A/c adapter and battery or the computer
Try to turn on the computer
check for Led's on the computer
If still no display ,shut down the computer,disconnect power cable.
Open the computer tower,remove memory modules,reconnect power cable and turn on the computer.If you get a beeping sound after turning on you should be getting beeping sound suggesting the mother board is not bad.Turn on the computer and disconnect power cable from computer.
Reseat 1 memory at a time if you have 2 memory module or if single memory module reseat in different memory slot,swap memory module.
Reconnect the power cable and turn on the computer if it boots to desktop possible issue with 1 of the memory module.
Disconnect the harddrive ide cable from the harddrive .Turn on the computer.
If still unable to power on .Shutdown the computer and disconnect power cable.Remove video card,sound card ,modem card if any .Connect just the vga cable from monitor to the integrated video port.
Connect power cable and turn on the computer.
If computer turns on possible issue with one of PCI or PCI express card.
If still unable to power on.Disconnect the power connector pin from the motherboard and reconnect it back.Turn on the computer check power power led on motherboard,also check if the processor fan is spinning. if no go then issue with motherboard.

First try switching the power cable that goes from the power supply to the wall switch. You would be surprised at how many times that is the case. If you know for sure that power supply cable is good, You possibly have a bad power supply. You can purchase these for about $40.00 at most of your computer stores. But before spending your money on the power supply, make sure that the switch that turns on the computer is not bad. a- check power supply cable b-check computer on/off switch c-check power supply. Good Luck