How to u check if the fan is compatible with the CPU or motherboard?

[neomasterc]

how to u check if the fan is compatible with the CPU or motherboard?

 

[Tedster]

plug it in, it either works or doesn't.

 

[SNGX1275]

If you are talking about a heatsink and fan for a processor, you need to find out what CPU you have. Then you can look on the box (or if ordering online check its specs) for compatable processors.