I have Old sims 2 EPs istalled on an old hardrive, can I still run it?

I have my hard drive in my old computer (I have 4 hard drives in total) in my current computer. I had every expansion pack for the sims 2, and I have lost some of the disks for them. I have all the files in the program files. Can I run this on my game (It has been installed on a different hard drive) or would I have to get my hands on a disk and install it from scratch again?