Strange double PC post

Either since a Bios upgrade or possible an overclock my PC now performs a weird double boot cycle before it posts???

CMOS has been reset, and overclock set back to default settings, but it still does it from a cold boot.

Struggling to find out why???

[everongaming]

I saw your post on OCUK forums but I dont have an account to reply there. What Motherboard are you using?