So after a few days of installing OS 7.1 on a few Mac SE's and loading them up with my favorite games, including but not limited to:

Dark Castle (one of the reasons for this thread)

Star Wars Arcade

Prince of Persia

Crystal Quest

Crystal Crazy

Arkanoid

Glider

Armor Alley

Shufflepuck

Lemmings!

Oh No! More Lemmings

and a few more I cant remember.

Moving on, the top 4 games in the list basically freeze up and cause system errors/address errors/unimplimented trap errors.

The screen glitches and the sound repeats and sometimes it restarts itself.  

So TODAY I checked the HDD's with Norton Disk Utilities and they all checked out fine, so I slapped them back in the SE's and reformatted/reinstalled Mac OS 6.0.8 this time.  Which is so much worse in terms of its functionality versus System 7.1. 

The games seem to now all play well with 6.0.8.  

Comments / Suggestions ?  (anything to spruce up 6.0.8 or has anyone had luck running these games on system 7.1 on a MAC SE?)

Forgot to mention that I used an Apple Techstep to monitor the computers voltage while using the floppy/hdd/scsi zip and the voltages are fine.  

Whats a good program to test the ram?

Thanks in advance!