My pc shows no sign of life when I press the on button - no sound and no lights on the front. The LED light on the back panel is a blinking green light.
Had a local power outrage and when it was over the PC would not start. Monitor works but the PC does not.
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Remove Power Cord then press and hold the power button for 30 seconds, then put the cord back in and try to start it.
When you press the Power Button are you hearing the fans run, the disk drive running, the cd drive click and the light on it comes on for a second or two?
Anything shows up on the LCD Screen?
If you press the power button and absolutely nothing is happening then you most likely have a bad power supply.
If you press the power button and you start hearing beep sounds or blinking lights in a continuous pattern (ex. 1 long followed by 2 short) then you have a motherboard issue. Those beep sounds and blinking lights tells the technician what is going on with the computer.
Green LED on back of power supply indicates it's getting power. That does not mean that it's distributing the power voltages to the computer. You could have a bad power supply or a bad motherboard. Just to make surethat nothing else is causing the problem, remove any PCI cards like modem,video card, sound card, etc... Remove the memory modules and disconnect cablesto CD/DVD drives. Look at the USB ports to see if any are damaged.
Pull the power cord out and press the power button on the PC to drain the power for 10 seconds. Then plug the power cord back in and turn the computer on. If still does not work, then the power supply may be blown out and needs replacement.
If you have already checked the connections from the screen to the PC, check that you have a power light on the screen. (Green or Amber). If no light, check power to screen. If it is amber, then the screen is not getting a signal from the PC - recheck connections. I would suggest you try and connect the pc to a different monitor to check whether it is the screen or the PC.
If it is the same on another Monitor or if the power button is green on the screen, then the pc is not sending information properly. Turn the pc off manually by holding the power button on the bottom half for about 10 seconds. All lights should go off from it. Now turn it back on again and see what happens.
If you see loading windows and then goes black, do the following:
Turn off the pc (bottom half). Turn back on and as soon as you pressed the button to turn on, start tapping the F8 key until you come to "Windows Advanced options" screen. use the arrow keys and go to Enable VGA mode. Press the return key twice. If it loads to windows, then fine. If not, then you may have a problem with the display adapter.
The motherboard seems OK as it is displaying signs of life. The Monitor should display something before booting up, which it is not.Please do the following.
1. Remove the RAM and reinsert the DIMMs into their sockets and boot up.
2. Disconnect the HDD data cable from the HDD and the motherboard and reconnect. Boot up.
3. Disconnect the monitor and reconnect. Boot up.
At boot up press F2 and set the PC to default settings. Boot up. Later when you want to apply your settings, keep noting down what you did when. Just in case.