[CentOS] CentOS on Lenovo G50-30?

I just got a Lenovo G50-30 and tried loading the CentOS 7 LiveCD on it. It
stops on a gray screen with a flashing cursor. I tried waiting for a while
and pressing keys, but nothing seemed to happen. I then tried the CentOS
6.5 LiveCD (I couldn't find a LiveCD for 6.6) and it worked just fine. I
would like to be able to use CentOS 7, so is there any way for me to get
access to the logs or any other info that would be helpful for figuring out
what the problem with CentOS 7 is?
Thanks,
Dave