The non MMX is a VR, The VRE requires less voltage.
your mobo must support VRE to use a MMX CPU
Set the mobo to VRE for MMX CPU.
I hope that answered your question.
Gee, a straight answer! I could not get one from Micron, who made the mb (though they did answer all my e-mail very politely). It is indeed an MMX-supporting board, in the Millenia MXE, and has the jumpers I mentioned. Even after digging thru detailed specs I could not figure it out! Muchos gracias!
That's cause all the ppl that work at Micron are snotty nose kids who were riding bikes and playing doctor when the P55C came out. I know because I used to be one. We're all old sk00l here =)
Ah, you laugh! But for a long time, I wouldn't turn the pc on w/o knowing which setting was right...then I gave in and fired it up the way it *was* jumpered! And it worked! It had a 166MMX in it jumpered *STD*. But it still bothered me. Soon after, I was running a program in Windows and it dead froze, so I started wondering again, immediately popped a vanilla 133 in, and here I am asking the knowledgeable!
Pentium-MMX uses dual voltage, VR/VRE is a voltage for Pentium classic, It is the way intel call different currents, before they invented numbers, so instead of saying 3.5v they write VRE , e.t.c. (i am not shure i remember numbers correctly). P-MMX uses split(or dual) 2.8v and 3.3V. so, if your m/b don't have that settings, put STD (standard) , and hope the board have autodetect feature (socket 7) .
It works for me.