HI Jeanne I have am IBM ps-1 value point siting here doing nothing , I was buliding it up for my Dad and when I bought some non parity ram 16 megs ans popped it in the mother board did not even recognize it ( 16 meg simm ) I was all over the IBM site and I saw that the board could handle that simm but not this unit , it would only reccognize the originla 8 meg simm it came with and it ran at 85 nano seconds where the newer simm was faster, I even tried the new simm alone and the computer would not boot
I think these ps-1 machines have a memory problem
I would up stripping it down for parts and building a system from scratch and it runs better than my Pentium and it runs Win 98 nicely