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- From: tope@enea.se (Tommy Petersson)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Adding memory to spite the OS
- Message-ID: <1993Jan22.175057.22620@enea.se>
- Date: 22 Jan 93 17:50:57 GMT
- References: <1993Jan22.005816.26906@cheshire.oxy.edu>
- Organization: Enea Data AB
- Lines: 30
- X-Newsreader: Tin 1.1 PL3
-
- khan@cheshire.oxy.edu (Onnie Lynn Winebarger) writes:
- : Hi guys. I have a question concerning some limitations of the OS
- : concerning RAM expansion. As I understand it, the OS was designed with
- : the 68000 in mind, and its address space as well, so the limited the size
- : of addressable RAM to 9 MB, with the rest marked for various devices and
- : such.
- : Well, I have a 500 with an A530-Turbo, with the 68030 processor, which
- : has quite a bit more address space than the 68000. So I was wondering if
- : there was some way to add more fast RAM than those 8 MB. I realize that the
- : A530 comes physically limited to the addition of 2 SIMM's, but this is more
- : of a question in principle.
- : So, how can one do it, or has 2.x solved this problem, etc?
- : Thanks for the help,
- : Lynn
- : khan@cheshire.oxy.edu
-
- I don't have an defenitive answer to your question, but maybe some help:
-
- The 68030 and WB2.04 combination has no problems with >9MB RAM. I have
- 16MB FASTRAM + 2MB CHIPRAM in my A3000T. However, this is on the mother-
- board. The 9MB restriction is still left in "Zorro-II address space" (like
- for a memory card in an A2000), but I don't know how the A530-Turbo works.
- I don't even know what it is (well, at lesat not who makes it).
-
- Ask where you bought the accelerator.
-
- --
- =============================================================================
- Tommy Petersson tope@enea.se Enea Data AB, Sweden
- =============================================================================
-