rs4u#@ANDREW.CMU.EDU (Richard Siegel) (05/07/87)
I've been using a HyperDrive 10 on a 512K Enhanced; the HyperDrive controller had software is the same as the HyperDrive 20. I've been using System 4.0 and Finder 5.4 (and the other new system software) for quite some time now, and I have not had any problems. I would recommend that you use the most recent possible HyperDrive software (V3R1 is what I have), and re-run HyperInstall AFTER you run the System Update. -_Rich