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Does your laptop shut down in the middle of doing something without any reason and warning? Does your laptop run much hotter then before, the keyboard and the bottom part of the laptop feels very hot? If yes, your laptop overheats and has to be cleaned. It happens because the heat sink is clogged with dust and lint preventing normal air circulation.
These are all the symptoms of a laptop overheating problem in or around the cooling system. The fan and the heat sink have a small gap in between them, this is where dust will be sucked into and will accumulate. Once all the dust and lint is removed, re-assemble your machine. This procedure is something that should be done periodically to ensure that your laptop overheating issues will be a thing of the past.
Alternatively, you can clean up your laptop without taking it apart by blowing off fans and heatsink with compressed air. This is not the best way to fix the problem because some dust will stay inside the laptop but it will work. By the way, if you’ve been using your laptop for a few years, it might be a good idea to replace thermal compound on the processor. It will help to keep your laptop cooler.
Here’s another resource with covers laptop overheating in more depth.
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March 2nd, 2008 at 8:30 pm
[...] For this upgrade you’ll need: 1. IBM ThinkPad T41p hardware and maintenance guide. The maintenance guide will help you to remove the keyboard and palm rest and get down to the CPU socket. 2. Small Philips screwdriver. 3. Thermal compound. Before you mount the heatsink back on the CPU, you must apply new thermal compound on the top of the CPU. You may consider Arctic Silver thermal compound. This stuff will keep your CPU cool and stable. 4. A can of compressed air. That’s would be a great idea to blow off dust from the cooling modules while you are replacing the CPU. Removing dust from the heat sink will help to prevent laptop overheating. Before I go any further, you should know that this upgrade is not for the novice or fumble-fingered. There are any number of ways you can completely destroy your computer during an upgrade of this type. From losing tiny screws to shorting out the motherboard with static electricity or dropping ascrewdriver into the open computer, this is not a project for someone who is not already fairly competent wielding a screwdriver and performing computer upgrades. [...]
May 10th, 2008 at 2:54 pm
[...] 4. The cooling module – fan and heat sink can be accessed through the cover on the bottom. It’s very convenient if you want to clean it. If you clean the cooling module with compressed air once a month, your laptop will never suffer from overheating. If you want to replace the cooling fan, just remove two screws securing the fan and unplug the cable from the motherboard. That’s it. [...]
July 3rd, 2009 at 10:48 am
HELLLO I HAVE A SONY VAIO THAT I BOUGHT IN FEB THAT ALL OF A SUDDEN ITS TURNING OFF FOR NO REASON WHAT CAN I DUE