HELP with Apple II+ booting! - test-drb@ccmp.vtda.org

29 May 1997

Still no joy on the Apple II+ boot problem.

The machine appears to definitely have 48K RAM; at least the NEC chips
have "416" on them.  Any way I can tell in BASIC?

I have 3 disk controllers and 3 drives.  The disk controllers have 2
different ROM versions; one is half copyrighted 1979 and half 1981,
while the other is all 1981.  The card model is 650-X104.  There's
another ID number, one is 820-0006-02 and the other card is 820-0006-D.

Help!!!!

Kai

...
  ----------
 From: 	Eric Fischer[SMTP:eric@fudge.uchicago.edu]
 Reply To: 	classiccmp(a)u.washington.edu
 Sent: 	Tuesday, May 27, 1997 10:02 AM
 To: 	Discussion re-collecting of classic computers
 Subject: 	Re: HELP with Apple II+ booting!

 kaikal(a)MICROSOFT.com says,

  My Apple II+ will boot a diskette called the
"Zardax Utilities" but  it
  won't boot anything else.  ...
  When I put in a different bootable diskette, I
get "APPLE II" on the
 screen, and then after a moment's pause, a bunch of garbage  characters
  are added.  
 My best guess is that maybe you have a 13-sector (DOS 3.2) disk
 controller and one 13-sector disk (the one that works), and the
 rest of your disks are 16-sector so the 13-sector controller
 doesn't know what to do with them.  Unfortunately I can't remember
 where to peek to find out the DOS or controller version number,
 so I don't know how you could verify this.

 The other alternative is that if your Apple II+ has less than 48k
 of memory, the other disks may be expecting a 48k system and loading
 DOS into a part of memory that doesn't exist on your computer.  The
 Zardax Utilities disk may be one with a relocatable DOS image on it
 (a "master" disk) created with "MASTER CREATE" and the rest are just
 plain fixed-address disks.  This would certainly explain why random
 junk was getting loaded into video memory instead of where it belongs.

 eric