ChatterBank10 mins ago
laptop fan
why is my laptop fan going crazy? it's been noisily whizzing away for a couple of days and the lappy is still quite warm.
I only have Windows Mail and Firefox open.
thank you :o)
I only have Windows Mail and Firefox open.
thank you :o)
Answers
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For more on marking an answer as the "Best Answer", please visit our FAQ.A temperature sensor within the laptop processor provides an output signal that is used to determine the voltage applied to the fan – and hence its speed.
Without heavy processor usage (which would cause heating of the processor), possible reasons for continuous fast fan operation include dust within the laptop preventing normal cooling, a fault within the fan control circuitry, or within the fan itself.
If at initial switch on the fan is running at full speed – this would suggest a control circuit or fan fault. If the fan does not operate at full speed until the laptop has been switched on for a few minutes – then I would suspect its natural cooling has been impaired due to dust and/or vent blockage.
Without heavy processor usage (which would cause heating of the processor), possible reasons for continuous fast fan operation include dust within the laptop preventing normal cooling, a fault within the fan control circuitry, or within the fan itself.
If at initial switch on the fan is running at full speed – this would suggest a control circuit or fan fault. If the fan does not operate at full speed until the laptop has been switched on for a few minutes – then I would suspect its natural cooling has been impaired due to dust and/or vent blockage.
If it's been quiet in the past then it will be a blocked heatsink. and the bad news is it's a pain to get to properly! but a air duster would get the worst out.
http://www.insidemyla...avilion-dv7-notebook/
(I really wouldn't suggest trying to do it yourself, unless you have experience of stripping laptops you will break something)
If it's always been noisy then you may have found one of the many HP laptops that has really badly designed cooling in them, they underspecified the cooling and used cheap thermal pads on them rather than decent thermal compound (I had to strip my HP right down a couple of months ago and remove the pads and put proper compound in its place.
The best suggestion I can make to start with is get a can of compressed air, stick a cocktail stick in the fan vent in the bottom to stop the fan spinning and give it a good blast of air into the side vent.
http://www.insidemyla...avilion-dv7-notebook/
(I really wouldn't suggest trying to do it yourself, unless you have experience of stripping laptops you will break something)
If it's always been noisy then you may have found one of the many HP laptops that has really badly designed cooling in them, they underspecified the cooling and used cheap thermal pads on them rather than decent thermal compound (I had to strip my HP right down a couple of months ago and remove the pads and put proper compound in its place.
The best suggestion I can make to start with is get a can of compressed air, stick a cocktail stick in the fan vent in the bottom to stop the fan spinning and give it a good blast of air into the side vent.
I just had a laptop repaired. Screen like multi-colour checkerboard from switch-on. Seems the graphics chips in some laptops can cause problems through overheating. The EU in their wisdom decided to reduce the permitted amount of lead in solder, thereby reducing the heat conduction of the solder. This can cause the chip to get hot enough to pop off its heatsink. A complete replacement was required at around £75. Ooo-er!