I had a new player recently ask a question that I wasn't able to provide concrete backup for my answer, only how I always have interpreted it. It was in regards to spells that do some die roll +CL based values. These frequently have a maximum value in parenthesis after this. Example that spurred this, the spell Regenerate
Regenerate also cures 4d8 points of damage + 1 point per caster level (maximum +35), rids the subject of exhaustion and fatigue, and eliminates all nonlethal damage the subject has taken. It has no effect on nonliving creatures (including undead).
The question specifically is about the (maximum +35). The max that it states, is that the max for just the CL based additional value, or is the max for the spell as a whole including the die based values? I have always interpreted it as that is the max the CL based value can add to the spell, after rolling the die based value. I have always done it that way, but I honestly can't remember if I read that somewhere and don't recal, or if I just assumed that was how it was done.