This is really odd. I just checked this: the jumper settings for the
"classic" P200 and the P200MMX are identical. Therefore, if you can
set the mainboard to run a P200 at 3x66MHz, this should work with the
P200MMX as well. Maybe the board is just reporting a wrong speed (old
BIOS), but the processor is indeed running at 200 MHz?
Otherwise, it is possible that one of your jumper caps is broken. If
you have a "newer" iP200MMX, it will only recognize multipliers of 3
and 2.5. Now, if you try to set a different multiplier (say, 3.5 or
something), the chip will default to 2.5. If one of your jumper caps
is broken, the CPU might interpret the setting as an attempt to
overclock and default to the low setting. Try and replace your
multiplier jumpers and see what happens.
Only broken ones, unfortunately. :) However, if you have some small
change to spare, you might consider getting an FIC VA 503+ board. It's
for sale for as little as US$ 50.- these days. The board allows you to
keep using your old RAM and components while running at 100 MHz FSB. I
use one of those boards in conjunction with an iP166MMX, which I
overclocked to 250 MHz about one year ago. It is very stable. If your
processor is actually running at 166 MHz now, you should see a
performance gain of at least 50% for a very small sum. Makes one
think, doesn't it? :)
--
Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
