Hi all i have been looking to get an FPU for my accelerator which is a M1230XA with a 50mhz cpu and 64mb of ram, Will this FPU be comatible with it?
In principle, yes. According to my information, the M1230XA takes the PGA version (i.e. a pin grid array package), and this FPU is one. However: Whether that is a genuine 50MHz 6882 FPU is another question. Many FPUs or CPUs sold from china are fakes, polished and "refurbished" with higher speed grades or more modern mask codes. IOWs, it might well be that this is actually a FPU of a lower speed grade that may or may not work at 50Mhz, or maybe even a 68881 (the earlier release, which is less powerful than the later release). According to the pictures, one of the pins of the sample FPU is bend, so whether this FPU fits into a socket without breaking the FPU in first place is another question. One could try to straighten the pin... IOWs, I would avoid "authentic fakes" from China if possible. You never know what you get.
