Without looking at any documentation, I would assume
you have a socket seven board. This can be confirmed
by using your old documentation.  If this is the case,
a non-mmx 166 will run fine if the board is set to
2.0 multiplier and 66 mhz bus.  For a 100 it will be set
to 50 mhz so you will have to change that.

If the voltage is not printed on the non-mmx cpu,
The voltage can sometimes be determined from the bottom
of the chip.  Look for a 3 letter code or a code looking
like Snnnn / ??? where 'n' are numbers and ? are letters.
The 1st letter can be either 'V' or 'S' for VRE or STD voltage.
The 2nd can be either 'M' or 'S'
The 3rd can be either 'U' or 'S'

Set your board for VRE or STD cpu voltage according to the
first letter.  I included the 2nd and 3rd letters just to
assist you in finding the right 3 letter code.

You can't use a cpu marked "MMX" without getting a socket seven
voltage regulator that fits between the socket and the cpu.  I find the
price of these not worth the bother.

Tom Turak

-----Original Message-----
Sent: Tuesday, October 26, 1999 9:30 PM

    I just got a PA-2000 FIC motherboard given to me for free (can't beat
that price) and I am going to use it to replace my tired old 486 MHz
Motherboard. It came with a Pentium 100 chip. I have a Pentium 166, that has
the exact same socket, and was trying to use it. It wouldn't complete POST,
so I re-replaced it with the Pentium 100 chip. I then downloaded a copy of
the PA-2000 manual from FIC and noticed that there were no jumpers for 166
MHz and that it was stated in the manual that the highest speed supported on
the board was 133MHz. I assumed that there were no 166MHz's back in 1995,
when the manual was written, and that if it was the same socket, that I
could use the 166MHz anyways. Was this flawed thinking? Will it in fact not
go above 133MHz? And if it can is there anybody who knows where I can
download a more recent copy of the manual?

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