Common Model 25 Information NOTE: This does not include EduQuest series systems. That information will be added when I can find the time to do so. This page covers operations common to all models of the IBM PS/2 Model 25, like opening the system unit. Appearance/Finding Type-Model # Opening The Model 25 Fixing the Cable Hook Opening a Locked 25 Memory and the kind you need to use for each 25... Install A Hard Disk Go Back>