I am using an amiga4000D with a csppc and mediator setup to (voodoo3 rtl8029) VArio IO card Spider USB PCI soundcard run OS4.
I made a bracket to push down the ppc chip a bit to get it booting this works fine now.
Ibrowse also crashed on me but when I changed the cache folder to ram: to try it is stable now.
It would randomly crash before I changed this setting.
It is rocksolid now.
But must change afew things though:
Scsi harddisk with OS4 still set to Asynchron and so is the yamaha scsi cdrw.
Yamaha cdrw is a bit flaky(ols age?) so gonna change that to ide harddisk.
Using the yamaha to be able to copy cd's with makecd..if that works with os4.
Also printed with the VArio with a HP lasetjet4 works great and fast!