My pwm pin broke of the connector of my laptop.

Question

Lenovo IdeaPad 3-15ITL6

Released in May 2020

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Brent De Meersman @brentdemeersman

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crwdns2931729:0crwdne2931729:0: Huk 18, 2024

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My pwm pin broke of the connector of my laptop.

A while ago I wanted to change my thermal paste and when removing the fan I broke the cable of the PWM. I thought of yeah I will solder it to the board. I realized by the hard way that your soldering iron should not be too hot. My pin broke off. Is there a fan controller which outputs the same pwm signal that I can solder it to? I already have a fan spinning at fast speeds so idc if that controller breaks by me then.

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score 0 · Answer 1 · 2024-11-19T01:44:22-07:00

jayeff @jayeff

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crwdns2931729:0crwdne2931729:0: Huk 19, 2024

crwdns2933897:0crwdne2933897:0

Hi @brentdemeersman

What is the model number of the motherboard?

If it is an NM-D472 then here's an image showing where the pwm leads go from the fan connector for either a 1 or 2 fan variant board

You may be able to run a jumper from either RE10 or RE124 (depends on which fan, if two in laptop) to the fan cable pwm wire.

Unfortunately I cannot find a boardview file showing the location of these components so unless they're marked the board, it may be difficult to find them.