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Hi everyone, I need to replace the fan of my Lenovo yoga 2 13’‘ and unfortunately the ebay seller sent me the wrong model, but that still fits, I verified that. What could be the issues if I actually mount that different fan? Specifically, the original fan placed in the laptop is the Sunon EG50040S1-C450-S99 and the only information printed on that are: DC5V / 2.25W. The fan that was shipped to me is a Sunon MF60120V1-C181-S9A (MagLev) and the specifications printed on it are: DC5V / 0.4A. Could it harm my laptop if I use that one? Thanks for the help.

Hi @patrizioerre , The specifications for the original fan 5V 2.25W means it uses 0.45A (450mA) of current. Ohm’s Law - Power =Voltage x Current The replacement uses 0.4A (400mA). This will not cause a problem. There may be a difference in the amount of air (CFM- cubic feet per minute) being blown by the fan due to its mechanical design i.e. fan blade angle, speed etc but I don’t think that it will matter. As long as the fan sits securely on the motherboard with no gaps etc.

It will depend on the processor and motherboard if they are not too different then it can work for you but the problems will come when you will use it as the speed and fluency in working your computer