I actually did this exact upgrade to an SE, which I gave to my cousin six years ago. (It actually got her into Macs--she got her first brand new MacBook Pro last week...)
The board can easily be swapped out--simply remove the SE board and slip in the SE/30. There are two limitations...
1. As others have said, the PDS is different.
2. The SE/30 board only accommodates one floppy drive. If you have a dual-floppy SE (including one modified to have two floppies and a hard drive), you'll have to sacrifice one of them. The SE/30 board only has one connector.
You may want to find a 1.4MB drive, but if you don't, the 800K drive will work fine. I've run other 1.4MB-equipped Macs with 800K drives (notably an LCII which gets used for testing drives) and it works without any problem.
Everything else is 100% compatible--the power supply, analog board, etc are all fine.
The board can easily be swapped out--simply remove the SE board and slip in the SE/30. There are two limitations...
1. As others have said, the PDS is different.
2. The SE/30 board only accommodates one floppy drive. If you have a dual-floppy SE (including one modified to have two floppies and a hard drive), you'll have to sacrifice one of them. The SE/30 board only has one connector.
You may want to find a 1.4MB drive, but if you don't, the 800K drive will work fine. I've run other 1.4MB-equipped Macs with 800K drives (notably an LCII which gets used for testing drives) and it works without any problem.
Everything else is 100% compatible--the power supply, analog board, etc are all fine.