Path: utzoo!mnetor!uunet!mcvax!enea!ttds!draken!duvan!drs-ano From: drs-ano@duvan.nada.kth.se (Arne Nordmark) Newsgroups: comp.sys.amiga Subject: ASDG RAM DISK Problems Message-ID: <244@draken.nada.kth.se> Date: 14 Dec 87 15:18:05 GMT Sender: usenet@draken.nada.kth.se Reply-To: drs-ano@duvan.nada.kth.se (Arne Nordmark) Organization: The Royal Inst. of Techn., Stockholm Lines: 25 Help! I've just "upgraded" to an A2000. Sadly, I got one of those old ones with the CPU slot occupied by an expansion memory board. The board was only half full (512K) so I just couldn't wait filling it up to one full MEG. So I did, and Workbench proudly announced 1.4 MEG free memory. Nice! Well here's the problem: The ASDG RAM disk just don't like those extra bytes. When I reboot the disk vanishes. But strangely this only happens when I've filled the disk with more than half a MEG or so. "Aha! there must be an error in those memory chips that I added, the ASDG device detects the error and make a new disk" I thought. I found out that the 1 MEG expansion memory occupies addresses C00000-D00000. (That block are "reserved" for future use according to my manuals, but those manuals are for 1.1) I wrote a program that checked the block. And I didn't find a single error! The disk worked perfectly (almost) with a one MEG Starboard occupying addresses 200000-300000. So I just don't know what's wrong with C00000! I really like the ASDG, but I also like the extra memory. What shall I do?