ga586hx version 1.53 by default does not work with Pentium MMX 233Mhz CPU.
To make it work You have to pullup BF0 to 3.3v VCC3.
Easies way is to solder 4.7K resistor on corresponding pins on the other side of the motherboard.
ga586hx with Pentium 233Mhz MMX
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