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Unit overheats and shuts down automatically after a short period of time if it is placed in a poorly ventilated surface. however, with a laptop cooling fan pad, it works okay. the hot part is in the underside, left. whatever could be the problem? internal fan thing? thanks ^^

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Lab-tops are notorious for cooling issues. It's not necessarily a defect, but something that can't be fixed without a good ventilated area. the Lab-top has to get air from somewhere, and unless you don't mind not have a keyboard to use, the air intake HAS to be on the bottom. So the problem is a long known general issue with lab-tops. This of course would come from me assuming that the unit is a Lab-top. Hope the cooling fan pad is working nicely, and not too much of an issue.

Posted on May 21, 2011

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If it didn't overheated in the past, then your laptop might overheat because the ventilation system doesn't work properly anymore.
Check if the ventilation is blocked in any way. Just to be sure, blow some air through the cooling fan vent (on the left side of your laptop). If dust comes out, then continue doing so until there is no dust. Also, if your laptop had this condition for a long time, then you should replace the thermal paste or thermal pad on your processor because it might have dried out and it isn't efficient anymore.
Another reason would be a faulty component. For example, if your laptop overheats near the battery and the battery itself overheats, then the battery is the culprit and should be replaced or removed until a replacement is avaible (for example, this issue was common in Dell laptops rendering the battery useless after a short period of time).
Also, high work loads make laptop computers overheat. If you play a resource demanding game for a long time your laptop will overheat for sure.
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