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Re: Weird Fan Noises and constant overheating
Get yourself a sevice manual(if you cant find one can send u one)
take the cover off the fan ,take out the fan.clean it and check the rotor (dust collects there and develops into cotton like material)
replace components and reassemble pc.
if this doesnt solve the prob the seatings for motor have become worn and the noise is from vibration.you could try removing the motor and put some graffite in seating this acts like lubrication an minimises noise(dont use motor oil it attracts dust)
for the overheating...go into bios and select fan always on.(in advanced)
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If the fan is making weird noises there is either something wrong with the bearing or it has ingested something.
Maybe you could look, listen closely and determine which it is. If it's foreign matter you may be able to extract or vacuum it out. If it's just bearing noise, you have to decide how bothersome it is and if a shop visit is justified. A clog is BAD because the fan is protecting the unit from high temperatures.
Is the water pump leaking coolant? If not, then why do you think it's bad?
If the engine is overheating, there are several other things to look at before you consider the replacing the water pump.
Are the fans electric motor driven, or fan belt driven? If fan belt driven, replace the fan clutch. If electric motor driven, check the fan control module and/or fan motors to make sure all is good there. Fan control module tend to fail in weird ways, so if nothing is wrong with the motors, replace the module.
Always, always, replace a thermostat that has overheated. Once overheated, they consistently fail. Make sure you properly refill the radiator with coolant after the stat is changed.
Check that the bottom radiator hose does not collapse.
Check the radiator for corrosion. Boil the radiator out, or have it done, or replace the radiator.
Its possible but it would require taking out all the screws from the bottom of the latop, taking out the keyboard and the screws from the top cover. Then disconnecting the ribbon for the mouse pad and any other plugs coming from the top cover.
After you take off the top cover you'll expose where the fan is at and at that point you can clean it off. If it still makes weird sounds then the fan would need to be replaced.