[comp.sys.amiga] More A3000 memory questions

don@brahms.udel.edu (Donald R Lloyd) (09/21/90)

	I'm sure most of these have been asked before, but I wasn't paying
attention at the time :-).
	I hope to soon get a 3000 (pending the sale of my 2000) and am curious
about how to go about adding memory.  I'll probably be getting the 3000/25-50
ed. package, and would like to add a little memory (I'm used to working with
3 megs now).  I'd love to get the 3000/25-100 w/5 megs, but that's pushing
my limited budget a little too far.
	For adding memory, I seem to have three options:
		Add 256K static col. zips relatively cheaply, but limiting expansion
			to 6 megs
		Add 1M s.c. zips at a higher price (best I've seen is $54@), but
			have to add in 4 meg increments (8 chips)...
		Just use non-s.c. drams that I can afford a few of, but possibly limit
			both speed and expandability.

	Questions:
		Anybody know where I can get a REALLY good price on SC zips?
		What kind of limitations/slowdowns will I incur by using DRAMs? How
			would these be added (in what possible configurations)?
		How useful is a stock 2 meg 3000?  Will I feel limited memory-wise
			if I wait a while for prices to fall & my funds to increase,
			or will I quickly become memory-hungry?
		Can I install memory myself without voiding the warranty?  If I
			go to my local dealer (ComputerLand) for memory, it'll cost me
			$125 for purchase & installation of 1 meg of 256K sc zips,
			or $600 (choke) for four megs of 1 meg sc zips. 

	In short... what's the best way to expand a 3000 on a budget that's
straining to afford one in the first place?  

mwm@raven.pa.dec.com (Mike (My Watch Has Windows) Meyer) (09/22/90)

In article <13913@brahms.udel.edu> don@brahms.udel.edu (Donald R Lloyd) writes:
   For adding memory, I seem to have three options:
	   Just use non-s.c. drams that I can afford a few of, but possibly
	   	limit both speed and expandability.

I've heard 10%+ penalty on speed for using the non-SC drams. I've not
noticed that they're any cheaper if you go with 1 meg chips instead of
4 meg, and the following justifies why I bought the 1 meg chips.

	   Add 256K static col. zips relatively cheaply, but limiting expansion
		   to 6 megs
	   Add 1M s.c. zips at a higher price (best I've seen is $54@), but
		   have to add in 4 meg increments (8 chips)...

Unless you're going to go to over 6 meg right away, then I wouldn't
bother with the high-density chips. Remember, they're still very new,
and the prices will go down quickly. The best numbers I could find
were $6 for the 1 meg parts, so that for meg was just under $200, vs.
$45 for the 4 meg parts, so that 4 meg is just under $400. Now, if you
don't need to expand until the price drops by 50%, you break even for
cost. With 1 meg parts, you spend $200 (4 meg now) + $400 (8 meg
later), and have 4 meg of 1 meg parts to sell. If you buy 4 meg of the
4 meg parts now, you wind up spending $400 (4 meg now) + $200 (4 meg
later), but don't have the 1 meg parts to sell, and haven't had the
$200 to play with in the interim.

I've got more memore than I've ever had before (5.5 meg vs 5 in the
2000), even with kickstart in RAM. Running 2.0, many of the hacks I
used to run now live in kickstart, so there's actually more free
memory than that 512K left over.

So, the question are:

	1) What applications you got that require more than 4 meg?
	2) Prediction on how long until the 4 meg parts drop to
		$20-$25/chip.


	<mike
--
I'm gonna lasso you with my rubberband lazer,		Mike Meyer
Pull you closer to me, and look right to the moon.	mwm@relay.pa.dec.com
Ride side by side when worlds collide,			decwrl!mwm
And slip into the Martian tide.