How to Fix Laptop problem "Laptop can not Start"

Today article i want to discuss unusual topics.Different from previous article,
Now i want to share with you all about laptop problem.we have received a seriously
problem with our laptop for example :
LAPTOP DOES NOT START

If your computer does not start or commonly Reboot at all or it starts but does not start properly, it is possible that you can fix at home without bring the laptop to a repair center. Here are some tips for you. I am not sure that I measure everything at once can cover, so I post as other examples come to mind.

Case 1.

The device appears to be dead. Try to connect the AC adapter, but the LED
(Power light, light from the disk, light battery, etc. ...) does not appears and will not light laptop if you do not press the button to reply.

Firstly, in this situation, make sure the power adapter. Measure the voltage with voltmeter if the voltage input meet requirement of spec. If you can not do is known good power adapter and use it to test the laptop. It is possible the laptop appears to be dead because the AC adapter is bad (and the battery is empty). If you know that the AC adapter is working and that the correct output voltage, but the laptop is still dead, you probably have a power problem on the motherboard (or power card on some phones) and should be replaced .
If you replace the AC adapter, make sure you use sound. The output voltage is exactly the same as the original adapter. The output current must be the same as the original card or higher, not lower.

Case 2.

When you turn on the AC adapter and plug the battery lights. When you press the power button on the laptop, but will not start. There is no video on LCD or external monitor.

If the light is on it indicates that the laptop is powered by the AC adapter. There is probably nothing wrong with the adapter, but only if testing with a voltmeter to check voltage output is correct to do so.
Try this. Disconnect the power adapter, remove the battery and wait 1-2 minutes. Then connect the AC adapter later and then try to start the laptop again. Sometimes this trick helps.
In addition, a memory related problem. Then try reinstalling the memory module, simply remove the location on the motherboard and install it back. Try installing the memory in another slot (if available). If you have two memory modules installed, remove them one by one and start the laptop with one memory module is installed.
If the laptop computer is very good with a memory module in both slots, but will not start the second memory module in both slots, the second memory module is defective. You must replace the module and change with the new one.
If the laptop is fine with both memory modules when they are installed in a slot, but do not start with both memory modules installed in slot B, the B-lock is defective and you replace the motherboard or using a single memory slot.

I hope you satisfied with my sharing.........