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I have a Dell Latitude E6400 and recently the charger blinks the green LED and wont charge the laptop. After a while however the laptop charges, and then this may occur again after a couple of hours, seemingly at random.
I tried to use the laptop without the battery and just the charger but it would not work. I also ensured that the charger was very firmly connected. I Googled this and apparently this could be a short circuit on the motherboard even though I have never opened up my laptop. What also seems strange is that sometimes it will charge and sometimes it won't. Will I have to replace the motherboard? Is there any quick fix or is it a deep rooted hardware problem?
NOTE: I'm not sure this is relevant but recently I have been noting that the CPU is being used much more than normal - about 80% when just booted up or loading a new chrome page. Also my laptop makes strange beeping noises randomly when I move my laptop whilst it is still on.
Use the Dell power button lights to help diagnose problems with your Dell computer, such as a failing hard drive or a bad motherboard. Most newer models of Dell computers now have a diagnostic LED surrounding the power button on the from of the computer. When you press the power button to boot the PC, the light should be green and remain green under normal circumstances.
It is most likely to be a short circuit - does this mean the only fix is to open up my laptop (i have no hardware experience)? How would a short circuit occur if I haven't opened up my laptop?
joyalrj22joyalrj22
2 Answers
There are two Green LED charger indicators; one on the charger itself, and one on the laptop indicating a charger is connected.
The one on the charger should be on solid as long as it is plugged in and receiving power. If that LED is blinking when it is plugged in, it means the charger is defective. Replace or borrow another to confirm.
If the charger indicator LED on the laptop is blinking (while the charger LED itself is on and plugged into the laptop properly) then most likely the power jack is bad. This happens when the charger plug repeatedly flexes the laptop's power jack during normal use - like bumping or pushing the charger plug against the laptop. The laptop power jack is relatively inexpensive (like $3) but depending on the laptop, takes significant labor to access and replace (like 30 minutes for the occasional hacker).
It is possible, but less likely to be a motherboard issue - where a section of it controls the power logic, deciding whether to get the power from the battery or charger input.
jdhjdh
Just easy Firstly unplug battery ,powercord cable Than open back cover unplug CMOS battery , RAM Wait about 5 min for sure .... Than plug back RAM than power AC in LTP will back to normal ....Tested on ACER 5573
WongWong