Another thing I should know which has slipped my mind.
Do Pentium 1 233MMX have onboard level 2 cache like the later Pentiums?
I don’t think they have an L2 cache, just an L1. Hope this helps.
pentium 1 233 with mmx usually has l2 cache on the mainboard. Most commonly 256kb, but sometimes 512kb.
Regular pentium 1s are supposed to have 16kb cache, but mmx have 32kb on chip cache.