----- Original Message ---- > From: Caleb Cupples <calebcupplessocial...@gmail.com> > To: vintage-macs@googlegroups.com > Sent: Mon, February 1, 2010 10:17:59 AM > Subject: Bus Error on Boot - Macintosh SE/30 > > Dear Listers, > > I have an SE/30 that I've recently upgraded the hard drive in, and > installed 7.5.5 on, but I keep getting a "bus error" at boot, whenever > I don't boot with the extensions off. Does anyone have any > suggestions, because I've been wanting to get it online with the > Asante ethernet card that's in it. > > Anyway, if anyone has any ideas on how to fix this, I would be grateful. >
Thinking it may be 24 bit vs 32 bit addressing issue. You may have old some apps intalled that requsire the 24 bit mode??? Here are some links: <http://en.wikipedia.org/wiki/MODE32> <http://www.lowendmac.com/daystar/pages/dsd_products/support/> <http://lowendmac.com/trouble/32bit.shtml> Wish I was at work to check out MacOS 7.5.5 there. I think you can go into the Memory Control Panel and switch from 32 bit to 24 bit addressing. With extensions off you likely will have to access it in the System->Control Panel folder directly but I guessing. You may need to install MODE32 7.5 iif you wants to address more than 8 MB of RAM --be sure to install version 7.5 as earlier are said to cause problems. Just my WAG. I do remember having somewhat similar problems years ago when I upgraded my Mac II and SE/30 but my brain is more like oatmeal today :) Good Luck ---glen -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
