Tom's Hardware > Forum > Laptops & Notebooks > General Laptops & Notebooks > [Solved] Fan on Laptop went out
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Best answer from frozenlead.

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Mortifix   10-23-2009 at 06:34:31 PM

I have an HP dv9000 and I recently replaced the motherboard. I noticed that the fan on the cooler stopped working. Before I order a new one I am wondering if there is a way to test the fan with a multimeter to make sure that it is the fan and not the new motherboard I bought. The model number for the fan is KDB05605HB. The only reason I think it might be the motherboard is because the fan was working on the previous motherboard. Thanks for the help.

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Best answer from frozenlead
I wouldn't just blindly wire a battery to your fan to see if it works. There will be a sticker on the fan which says how much potential it operates on - you can use that (and an external power supply) to test it if it's working correctly.

Your fan is probably dead, though; mechanical parts are far more vulnerable to failure than solid-state electronics. You can try and resurrect it with some compressed air in the motor (and perhaps some WD-40), but it's better just to get a new one.
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bry   10-23-2009 at 11:14:49 PM

try using a 6v to9v battery to see if it works

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Bronze Laptops badge frozenlead   10-23-2009 at 11:55:51 PM
Best answer

I wouldn't just blindly wire a battery to your fan to see if it works. There will be a sticker on the fan which says how much potential it operates on - you can use that (and an external power supply) to test it if it's working correctly.

Your fan is probably dead, though; mechanical parts are far more vulnerable to failure than solid-state electronics. You can try and resurrect it with some compressed air in the motor (and perhaps some WD-40), but it's better just to get a new one.

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Mortifix   10-30-2009 at 05:19:35 AM

Hey guys thanks for the replies. It was the port on the motherboard that was bad. I tried it on the old board and everything fired up fine. Thanks.

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Tom's Hardware > Forum > Laptops & Notebooks > General Laptops & Notebooks > [Solved] Fan on Laptop went out
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