My laptop turns off without any reason posted in: Notebook Shuts Down | After I turn on my laptop it works fine for 25-30 minutes and after that just turns itself off without any warning. When I turn it on again, it works for some time and then shuts down again. What is going on? How can I fix it? Most likely you experience a laptop overheating problem and it would be fixed by cleaning the cooling module – the heat sink and the fan. The notebook processor produces a lot of heat when the notebook is turned on. The cooling module helps to keep the CPU cool when the laptop is working. The cooling module includes two parts: the heat sink and the cooling fan. The heat sink is attached to the CPU and helps to conduct the heat from the processor to the radiator. The cooling fan blows on the radiator and helps to disperse the heat produced by the CPU. The laptop will overheat if the heat sink radiator is clogged with lint and dust or if the cooling fan stopped spinning. If your laptop shuts down after some time without any reason and warning, check if the cooling fan spins.

Usually it makes some noise and you can hear it. If the fan works fine, then check if the heatsink is clogged. In some cases you can clean the heat sink with compressed air, just blow inside the fan openings on the laptop bottom. If the heatsink is completely clogged, then it is necessary to remove the heatsink for cleaning.Many of us own laptops where the fan seems to run an annoying amount of the time, but it's better than a laptop fan that doesn 't run at all. fan in your notebook fails, the usual symptom is an overheating CPU and automaticSometimes the laptop runs for 10 minutes, sometimes for a half hour, it depends on the task and the power. Troubleshooting a hot CPU can be as simple as making sure you aren't blocking the airflow outside the laptop. Often times, you can access the fans and heatsink without a huge job, on this Toshiba A65, all it takes is some careful prying and two screws. always, remove the battery before working on any laptop.

The first step is removing the combination blank and hinge cover that allows access to the two screws securing the keyboard. It is snapped into place with little tabs on the long edge and a big tab on each end. The picture to the right shows how the blank and the hinge cover are all one piece of plastic, so you have to open the screen to fully remove theI should mention for desperate people with no mechanical skills, one non-invasive way to extend the length of time a notebook with poor cooling will run between shutdowns is to run it on battery and choose the most aggressive (ie, longest life) power saving mode. BTW, I'm working on this notebook because I was asked to bypass the power connector as a favor. got five kids in the house and I burned my finger on the metal part of the 100BaseT port after I got it charging again, so I'm afraid to return it for The problem I was originally asked to fix should have tipped me off to the

overheating issues this notebook would suffer. The pin had broken out of the center of the power connector on the motherboard, which meant the batteryMy fix (really a kludge) was to solder a new wire directly to the connector and bring it out the I/O port blank on the back of the notebook.hvac duct cleaning regulations The coax power cable was HUGE. pure air duct cleaning servicesTurned out to be rated for 2.0 amps. clean a laptop fan with compressed air secure the keyboard in the laptop, and it's not even necessary to disconnect the ribbon connector from the motherboard to access the fans. laptop uses two fans, a large exhaust fan that pulls cooling air through

the body of the notebook, and a smaller CPU fan on top of the large heatsink. The large fan to the right draws cooling air in the bottom of the laptop, the smaller fan in the center is directly cooling the CPU. overheating is pretty much limited to making sure the laptop fans operate and aren't completely burried in lint. This is a pretty robust cooling system and likely to keep most laptops from shutting down from thermal overload protection, but they stuck a P4 2.8 Ghz CPU in this puppy! When I went out on the web and read some reviews of how this laptop performed when new, I saw comments like "Keyboard gets too hot to type" and "Frequent shutdownsSony made a Vaio with the same CPU, HP made an Pavilion and Dell an Inspiron. I've seen similar overheating and battery life complaints for them as well. As you can see to the left, there was a build-up of dust on the CPU fan which I blew out with compressed air, but not enough to cause any thermal shutdown

The reason I burned my finger on this boat anchor is it just runs too hot as a design flaw. OK, I didn't get a blister, but I'm afraid to put this laptop with a kludged power connector in a family home. know how they could have forced more air through this thing than with the big intake fan they are already using, so troubleshooting includes making sure you have unobstructed airflow to the BOTTOM of the laptop for the fanIf you run the thing on a bed, or on your lap with the fan grille blocked by your leg, it's going to cook for sure! Before taking it apart, try the The printable eBook version of The Laptop Repair Workbook is now available for download anywhere in the world. A lot of problems can come to your HP Pavilion laptop computer if the cooling fan isn't working properly. The most expensive and hard to fix of the issues that can come to your computer is the motherboard overheating and causing the computer to not be able to power on anymore.

To avoid these issues, it is important to check the cooling fan often and to keep it clean by blowing pressurized air to remove dust. Power off the computer, disconnect all devices, disconnect the power and flip the computer over and remove the battery. Remove the four screws holding the two face plates at the bottom of the computer in place with a Phillips-head screwdriver. Remove the two face plates. Remove the two screws holding the hard drive in place and pull off the hard drive. Remove the five screws in the battery well, the one screw that is below the hard drive and the 15 screws along the edges of the laptop and the center of the laptop. Flip the laptop over and open the monitor to access the keyboard. Flip the laptop over and open the monitor up to access the keyboard. Remove the five screws below where the keyboard used to be and then pull off the inside plate of the computer. You'll see the fan on the upper-left corner of the inside of the laptop case.

Wipe away all dust with a clean rag and then blow pressurized air into it. Replace the inside plate, replace the screws, replace the keyboard, close the monitor and flip the computer over. Replace the screws, replace the hard drive, replace the face plates, replace the battery and reconnect all devices. Flip the computer around again. Open the monitor and power on the computer. Foner Books: Laptop Fan and Overheating - Cleaning Fans and Troubleshooting Hot CPU Failure Laptop Overheating: Cleaning the Laptop Fan and Vents to Reduce Overheating Inside My Laptop: How to disassemble HP Pavilion dv7 series notebook You May Also Like HP Pavilion laptops must be cleaned periodically for the best overall performance. Cleaning the laptop means cleaning the laptop itself and clearing... Testing a CPU fan is a relatively important preventative maintenance process, as today's modern processors generate large volumes of heat. With increased processing power comes the need for more cooling.