I have forge .1448 on my 1.7.10 server. Once I put in MrTJP core it crashes. I tried removing everything else and the problem persists. I would give you the crash log but it doesn't get that far. I am using MrTJPCore-1.1.0.31-universal with Java 7. It isn't RAM, I gave it 4gb.

No log was provided, 1.7 is not supported, this is ancient.