Unfortuantly I am not to familier with this type of computor or where to find a replacment part. The computor itself is and old IBM that runs a Particle Analyzer from Malvern on DOS. My problem is in the IDE board (i hope) and with that I am having a hard time finding is a replacement that will be able to handle the tiny hard drive and old formating and the old mother-board. The IDE board itself was made by Western Digital and is copywrited 1988. It has a strip that is made to insert into the motherboard that has 31 x 18 "pins". (excuse my ignorance on these matters). It also has J1 and J2 for the hard drive and floppy drive? . Any suggestions?