Clicking sound in PC?

I just installed an SSD into my pc, and now somewhere in the case there is a clicking sound, similar to a heartbeat, which repeats consistently about every 3.5 seconds. There are 2 ticks with half a second in between them in that time frame of 3.5 seconds. I am thinking that there are PSU wires in the way of a fan, but I am not entirely sure. Any insights? Here is a link to an audio file which contains the sound: https://drive.google.com/open?id=1WFOn2LLfMvXu7NTaj2OsHxZJL2V4st1R
Answers

James S

Hard drive is dead. That is the sounds of the heads banging from end to end on the disk and keeps on re-trying. https://www.youtube.com/watch?v=vqAMGu-ffEE Some try over and over again then it will power down and stop. Not all drives have the same exact noise.