Hello. The fact that playing with mod BuildCraft I found a nasty bug: after setting career and including some chunks periodically (with a frequency of 5-6 seconds) started to flicker white. The console on this score remained silent. Play with the following build:
BuildCraft 3.7.1
Industrial Craft 1.117
Oprifine
Forge

my video card Nvidia GeForce 7025\Nvidia Ge Force 630a

Forgive apologize for any grammatical errors. Google Translate is probably bad

BuildCraft 3.7.1 is ancient, you wont get any support for it.
The only thing I could advise you is to try without Optifine.

Try updating to BuildCraft 3.7.2, too.