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Cuts out suddenly I wonder if the battery has gone and is causing overheating

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COMPUTER/LAPTOP OVERHEATING
When the CPU overheats then it will shut down (i.e. thermal overload) and won't boot up again until it has cooled down. If this is the problem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are clogged with dust.
Check the CPU fan to see if it spins freely, if not replace the fan. If the fan and heat sink is clogged with dust the remove the dust and make sure the vents are clear and dust free.

Posted on Sep 11, 2010

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Gets no power from wall or battery


Few things in life are as frustrating and infuriating as working ******* your laptop, only to see the screen go dark due to a sudden power loss. While there's a good chance your hard work and data is gone, the more concerning issue involves the cause of the sudden loss of laptop power. A suddenly dead laptop could indicate a more serious problem, or simply be due to a loose battery or power cord.

Overheating

If your laptop's fan was running hard and fast right before your laptop went dead, it's possible the machine shut itself down to avoid damage from overheating. The internal electronic components of a laptop generate heat when the computer is turned on, and this heat must vent to avoid causing damage to the machine. If the air vents are clogged or blocked and the heat inside cannot dissipate, the laptop will power down without warning to prevent possible damage. To avoid this problem, ensure that your laptop's fans and air vents are clean and clear, or use a laptop cooling stand to help vent the heat.
Battery Issues

Laptop batteries are not exempt from malfunctions, and a sudden power loss may point to a problematic battery. A loose connection may cause a surprise laptop death, as can dirty connectors. Like most other battery types, laptop batteries are not immortal and eventually lose the ability to hold a charge for long. Some laptops have sensors and circuitry to monitor the battery, and will cut power to and from it should it become too hot or exhibit too high a current. Try cleaning the connectors and reseating the battery properly to fix the problem. In the event of a loose connection, a repair technician may be your best course. For malfunctioning batteries, a new replacement battery may be the best way to prevent future power failures.
Electrical Problems

If you were using your AC adapter for power right before your laptop powered off, there may be an electrical problem somewhere along the line. The outlet you were plugged into may have short circuited, or the adapter itself may have overloaded. The connector on the back of your laptop may be loose, preventing proper connection of the adapter. A short circuit within the laptop itself may have occurred, preventing either the battery or adapter from providing power to the rest of the electronics. Work backwards to find the source of the power supply problem. Try a different electronic device in the outlet, and insert the adapter itself into a different outlet. Reinsert the various cord ends into the adapter and laptop to ensure a tight connection. If a short circuit seems the likely cause, seek the help of a professional technician for repair.
Troubleshooting

Try to ascertain what occurred right before the power loss. A physical move of the laptop may have loosened the battery or jostled the adapter cord loose. Try removing and then reseating the battery and tightening the adapter cord. A loud fan noise may indicate that the machine was on the verge of overheating. Let the machine cool completely before attempting to reboot. An unusual noise emanating from within your laptop may indicate a short circuit. A beverage spill can cause the death of an laptop if not attended to quickly, causing short circuits and power failure.
Precautions

Observe standard safety procedures when dealing with electricity, and never disassemble or examine an outlet or your laptop without disconnecting all power first. If delving into your laptop to check for short circuits and loose connections, work in a clean, open area to avoid introducing any new contaminants to your laptop's vulnerable interior.


Read more: My Laptop Suddenly Has No Power ' eHow.com http://www.ehow.com/info_10023896_laptop-suddenly-power.html#ixzz1XFwtBENN

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My triumph tiger 900 (885) starts and runs perfectly,then after 2 or 3 miles cuts out suddenly,there is fuel in the carbs so i think its an electricle problem,when this happens the rev counter drops...


Check the battery itself. Your battery may have gone bad, and is not staying above the lowest needed volts to run the tach etc. And worst case, there is something wrong with your charging system. Your regulator/rectifier might not being doing their jobs. I suspect the battery first and the charging system second. Good luck.

Bruno

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My XB-300Li motor cuts out after riding about a mile or so


Sounds like overheating alright. How is the weather? If its over 80 it might only be that. If it is cooler, then if you are running the recommended volt/amp battery pack you may have a bad temp sensor on your control board. If you are using a higher powered battery to boost speed then you will have to cool the motor or get a more powerful one that can take the load. I do not have that mode bikel, so I can not say if it is a common problem, It is not a problem with my 24 volt Lafree.

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I have a acer aspire 5003WLMi and my wifi is not working all of a sudden. It keeps telling me to turn the wifi switch on but i dont know where it is. please help


Hello and thank you for using Fixya.

This could be caused by two seperate issues:

1. The actual wirecard that is inside the laptop has been damaged or gone out. This can be caused by overheating or dust. Try getting a can or air, unplug the laptop and blow the dust gently to remove dust. If overheating is causing the issue, try letting the laptop cool down a few hours.

2. Driver issue - This can also be caused by a missing or deleted driver. You can visit the manufacturer's website and redownload the driver free.

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1 Answer

Overheating and switch off


Maintain adequate ventilation. If your PC is crowded between your desk and the wall, there?s no room for proper air circulation. Use compressed air to remove dust and debris around the fan and laptop openings. It could also be the CPU fan has gone out and is not spinning properly if at all. Try the air first. If it still overheats, take it to a certified tech and have him look at it. Don't continue to use the laptop for extended periods until you fix this problem. Heat can cause serious damage to your laptop. Then your talking big money.

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