This crash is triggered by placing the computer cube. (edit: a couple of other blocks cause this crash)
Crash report from multi mc, http://paste.ee/p/To82R
Mods installed:
CodeChickenCore-1.7.10-1.0.7.46-universal.jar
industrialcraft-2-2.2.774-experimental.jar
neiaddons-1.12.9.32-mc1.7.10.jar
NEIIntegration-MC1.7.10-1.0.10.jar
NotEnoughItems-1.7.10-1.0.5.111-universal.jar
NotEnoughResources-1.7.10-0.1.0.106.jar
TechReborn-0.4.2.852-universal.jar

Forge version is 1.7.10-10.13.4.1448-1.7.10
lightloader version 1.7.10_04
LWJGL 2.9.1