Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!zephyr.ens.tek.com!tektronix!percy!parsely!agora!billsey From: billsey@agora.uucp (Bill Seymour) Newsgroups: comp.sys.amiga Subject: Re: OS/Hardware memory limits Message-ID: <1990Jun5.155419.452@agora.uucp> Date: 5 Jun 90 15:54:19 GMT References: <6506@vax1.acs.udel.EDU> <11700@cbmvax.commodore.com> <196.filbo@gorn.santa-cruz.ca.us> Reply-To: billsey@.UUCP (Bill Seymour) Organization: Betazoid Central Lines: 35 In article <196.filbo@gorn.santa-cruz.ca.us> filbo@gorn.santa-cruz.ca.us (Bela Lubkin) writes: :In <11700@cbmvax.commodore.com> Dave Haynie wrote: ::[...] the up-to 1.75 Gigs of memory possible (assuming some serious ::DRAM density improvements real soon) in the Zorro III bus. : :By eye, I guessed that a Zorro III board could hold 96MB of 1MBx4 ZIP :chips. 19 such cards would fill the 1.75G address space. Would a :20-slot backplane have any chance of being reliable? (I mean an A3000 :motherboard in a different case, with a 20-slot backplane replacing the :standard 4 slots). If necessary the backplane could connect to the :motherboard in the middle and have 10 slots on each side. After adding enough glue logic to actually *use* the memory, you're looking at only 64M on a Zorro II card. :-( Of course, that'll all change when the new 16M chips become more available. That gets you to 256M/card. Then you'll only need seven cards... And when the 64M chips hit the distributers (1993-1994?), you'll be able to get a full gig on a card. Of course, we'll all be Amiga 6000 owners by then. :-) :Bela Lubkin * * // filbo@gorn.santa-cruz.ca.us CI$: 73047,1112 (slow) : @ * * // belal@sco.com ...ucbvax!ucscc!{gorn!filbo,sco!belal} :R Pentomino * \X/ Filbo @ Pyrzqxgl +1 408-476-4633, XBBS +1 408-476-4945 : :If you want the best possible speed, there's nothing like 10 or 20 megabytes :of memory. RAM, its the Real Thing. : - Dave Haynie