Maybe theloud pop you heard meant you screwed up the lift? Or were lifting too heavy a weight to control for yourself. If I loaded up 600 on the deadlift and tried it I would hurt myself.
I wouldn't blame it on lifting heavy, I would just be stupid.
Lately though I am lifting in higher reps, 7-12, because I stalled out lifting in the 2-4 range, plus I just like it right now.