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I tested the 1 gb separate in both inputs, nothing, same thing. The laptop starts but there is no backlight. I will add on stuff later. I unplugged the laptop immediately and have left it unplugged since then. THe last week before this total failure, I had a number of times the computer would be fine and suddenly a blue screen would flash and the computer would reboot before I could read it.

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Re-plugged in the laptop…. Took out the memory, and other easily removable externals.

Turn off the laptop, press firmly on the chip and try turning the laptop on while applying pressure on the chip. I touched the monitor cable to see what happened and it shut off again. First thing to do — check the memory.

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First of all, take a closer look at the screen under bright light. Checked for voltage on motherboard at a known SAFE location reset button found power. Will you get any video on the screen when the hard dive is removed?

The fact is when Dell inspiron n5110 pci simple communication controller press the power switch, the laptop gets power as the lights are on.

If your laptop has a discrete video card, this also could be the video card failure. Reinstall factory software from the recovery disc. Minimize the laptop as much as you can. Maybe the connection got oxidized and the keyboard cable is not making good connection with the motherboard. Any ideas what could have gone wrong, what to check.? Hi, I have an HP laptop. inspirin

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Maybe dfll laptop shuts down because of overheating? Have you tried replacing the memory module with a known good module? Is the memory module the RAM itself? I must say that you all are pros!

At first my Presario would boot up fine and run. Try reseating the memory module.

Laptop is dead. How to troubleshoot. | Laptop Repair

Try removing the hard drive and powering up the laptop. Test the AC adapter first.

Jose, Take a closer look at the power jack. I thought maybe this could be the problem. I put the laptop back together again and was pleased to see the power light come on when i pluged the power cable in.

Laptop is dead. How to troubleshoot.

I figured out that the problem was with the heat sink being too much tightly fastened on the CPU I had fasten that myself once when cleaning the fan. In this case you have to replace the entire motherboard. The screen remains black throughout.

Who knows, it might help. Removed battery and checked with Multi-meter and found power going to battery. Actually the LED light was flashing for a few minutes before it too went off. All LED Bulps are glowing when we turn on the system. Removed battery and adaptor and tested reset button with Multi-meter dell inspiron n5110 pci simple communication controller faults but none found, reset button working correctly. I just purchased a new board for mx35 s installed left everything out except memory pushed power button came on stayed for 5 seconds cpu fan shuts down lights stayn on and ideas.

Can you tell me where the problem lies as i am tired dell inspiron n5110 pci simple communication controller bang it so often? Unplug the power adapter, remove the battery. Take a look at this post: You can toggle video output between internal and external modes by using Fn keys: The WLAN light flash as well.

Amazing blog…thank you so much. No beeps, no video, no HDD activity. Hi… Not sure if you can help. I took it in to get it looked at and when I went to show them what was happening, it started up!!! It happens because there is no power coming to the motherboard. Try removing them one by one and test the laptop with only one module in place.