Trouble getting into the bios on my new build

Retribute

Honorable
Nov 3, 2013
25
0
10,530
I built my computer and at first i was having this problem where it would keep restarting when I powered it on, but eventually it worked and brought me into the bios. It listed my RAM and CPU and it was working fine. I didn't have an operating system before so I just saved the changes and shutdown the computer. Now I can't get back into the bios and it keeps restarting again when I turn it on.
I am using a msi Z77A-G45 motherboard and a msi GTX 670 Power edition graphics card.

When it was working I was using a HDMI input into my computer monitor and obviously had the settings of the monitor input set on HDMI. I also have DVI and AVI cables as well as a couple adapters that I can use to convert the signals.
When it worked I believe I had the HDMI plugged directly into the graphics card.
When I turn the computer on the CPU and video cards fans spin. I haven't changed anything since I got it working.
Any ideas on why this is happening?