Now this is a little weird and it just started the other day. I just started getting coil whine and it sounds like it is coming from my PSU. Now I do have a gtx 970 that has a little whine occasionally but it is quieter than this. Also it only happens if I am gaming but I don't even notice it any more. This however, sounds different and starts as soon as I power on the system before windows even boots. I have a 700w coolmaster that is going on 8 or 9 years old. Can a PSU just spontaneously start to coil whine?