No Input to Monitor problems

I recently updated my bios for my motherboard. I have a MSI motherboard so live update did most of it for me. The problem I am having is about 75% of the time when I start up my computer I get no input to monitor until I hit the reset button on my computer case. Then when I get it to boot up where there is a picture on the monitor, the 4th core I unlocked is no longer unlocked. This bios update really messed things up, sometimes it starts with all 4 cores and there is a picture. Or sometimes there is no picture and I have to hard restart, then there is only 3 cores.