No and it's a completely new rebuild, I thought it was a trait of my old PSU but I just got a brand new Corsair AX860.
This has happened since new 5 years ago then I noticed it was only my PC doing it, it's an EVGA one of these
http://www.evga.com/support/manuals/files/132-bl-e758.pdf.
I have updated the BIOS and reset defaults many times I just can't find what does it?