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Please turn off the computer, start hitting F8 at the start-up and then
choose last known good configuration. If this does not work, choose Safe
mode options. If still does not work, please try to restore the computer to factory settings. You can try to hit F11 or F10 at the startup to initiate recovery. If not working, please tell me what error message you get on the screen.
Three blinks in a row is the LED code for a memory issue.
Turn the laptop over, remove the panel over the RAM, remove the DIMMs (it will likely have 2 in it), place one in at a time and try powering the system on.
One of the two is likely bad although it is possible (although very unlikely) that both are bad. It should boot up when the good DIMM is in place. Once you have identified the bad one, buy a replacement or possible choose to upgrade the total amount of RAM.
When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?
When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.
Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.
Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.
The Notebook may just have it's knickers in a twist - try removing the power cord and then remove the battery - leave it for a coouple of minutes then replace the battery and try again. The worse case scenario I am afraid is that your hard drive is toast so you may have to replace it.
Well lets hope nothing fried, What i would recommend to try is to unplug the power chord from the back of the computer and hold in the power button for about 30 Seconds to remove all the power from the board. Then plug the power chord back in and hit the power button and see if the computer starts. Let me know if this works for you. Thanks
Disconnect all cables from the computer. Press and hold down the power button for about 20 seconds. Reconnect only the power cable and try to turn on the computer on pressing the power button If it turns on then good otherwise, switch the power cable of the computer with the power cable of the monitor as they are the same cable as the power cable could be bad but this rarely happens. Open the computer and see if you see any light on the motherboard, if you do then the power supply is bad. If you dont then both power supply and the motherboard could be bad.
Try reloading the drivers, delete the device in device manager and reboot. It should then pick up the drivers and reload them, if that does not work I would suspect the screen is on its way out (flickering normally means the screen or its connection is bad)