Ultra - standard or light do not work with this mod pack
OptiFine_1.7.10_HD_U_B5 Crashes
OptiFine_1.7.10_HD_B5 Crashes
OptiFine_1.7.10_L_A4 Doesn't render pipes (looks kinda cool fluid and power just floating in mid air)
OptiFine is a big no-no, with anything at that. Do not use it, it's not supported, buggy and i offer no assistance when it's being used. FastCraft is enabled, so that should improve FPS for you.
Ultra - standard or light do not work with this mod pack
OptiFine_1.7.10_HD_U_B5 Crashes OptiFine_1.7.10_HD_B5 Crashes OptiFine_1.7.10_L_A4 Doesn't render pipes (looks kinda cool fluid and power just floating in mid air)