Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!uakari.primate.wisc.edu!uflorida!ufqtp!sutherla
From: sutherla@qtp.ufl.edu (scott sutherland)
Newsgroups: comp.sys.amiga.hardware
Subject: What Memory Chips for A2630??
Message-ID: <920@orange9.qtp.ufl.edu>
Date: 22 Feb 90 23:31:12 GMT
Reply-To: sutherla@qtp.ufl.edu (scott sutherland)
Distribution: na
Organization: University of Florida Quantum Theory Project
Lines: 42


	I posted a question about memory for the A2091 a couple of
weeks ago because I thought I was going to take advantage of the 
Ed. Discount to get one of these.  Well, my financial situation
looks like it is shaping up so that I can go all out and get 
an A2500/30/PC.  Yea!!!   Well, I know that it comes with
1 meg of standard A2000 RAM, 2 Megs of 32-bit fast RAM, and
1 meg of ram for just the AT.  I was planning on going ahead 
and populating the A2091 board it comes with anyway when I started
reading the people were getting 32-bit RAM chips to populate 
their 2630 boards to 4 Meg and not paying much more than they would
for the 16-bit RAM for the A2091.  Now, I have the following questions.

1) What kind of RAM do I need for the A2630?
2) How much does it typically cost?
3) Suggested retailers?


	I really hope I can get this thing, cause then I can ray-trace
to my hearts' content!! ;*) ;*)

	Who knows, maybe I'll populate my A2091 AND my A2630.  Then
I'd have a total of 7 Mb of Amiga RAM.


ONE LAST QUESTION::::

	Can someone email me the answer to the following.  If I have
the 1 meg RAM on the motherboard, 2 Megs on the A2091, and 4 Megs
of 32-bit RAM on the A2630, which processor (68000 and 68030) can
use which types of RAM and for what kinds of purposes?  For instance,
if I use the 68030, can I use the 3 Mb of 16-bit RAM as a RAMDisk??
CAN the '030 access the 16-bit RAM in a normal fashion?  If so,
any performance degradation???   Can the 68000 use the 32-bit RAM?
If so, how? (e.g. Ram disk, direct ram, etc.)  Since I know virtually
nothing about how this different RAM is interrelated, a detailed 
response would be appreciated.


Thanks,

Scott Sutherland
sutherla@qtp.ufl.edu