I have a Compaq Deskpro 66M. This machine has a dx2-66 on a riser card, and an EISA bus. I would like to add a sound card and a cdrom. But the setup seems to require a disk for each card. Also, can ISA Cards be used in EISA slots? I need to hear from someone who has worked on this exact machine as it seems to be a proprietary design. The RAM slot is a proprietary design so I have given up adding memory!