[comp.sys.mac] Memory in Mac II

aff@dukvlsi1.cs.duke.edu (Amr F. Fahmy) (09/18/88)

What are the possible ways of putting simms (256K or 1Meg simms)
in the Mac II memory slots ?

please send Email. Thanks.
Amr F. Fahmy, Dept. of Computer Science, Duke University
Durham, NC 27706-2591.  Phone (919) 684-5110  (ext.248)
CSNET: aff@duke        UUCP: ...!decvax!duke!aff
ARPA:  aff@cs.duke.edu

bob@eecs.nwu.edu (Bob Hablutzel) (09/19/88)

> What are the possible ways of putting simms (256K or 1Meg simms)
> in the Mac II memory slots ?

To quote Tech Note #176:

" The configurations you can have are:

	1MB, using four 256k SIMMs in bank A
	2MB, using eight 256k SIMMs in banks A&B
	4MB, using four 1Mb SIMMs in bank A
	5MB, using four 1Mb SIMMs in bank A and four 256K SIMMs in bank B
	8MB, using eight 1Mb SIMMs in banks A&B

Again, it is important to make sure the right size SIMMs are in the right
Bank, when you are using a combination of SIMMs, the large SIMMs must be in
Bank A. When you are using only four SIMMs, they must be in Bank A as well."


Bob Hablutzel		BOB@NUACC.ACNS.NWU.EDU

c60a-2ce@web-2h.berkeley.edu (Mike Kao) (09/22/88)

I recently made a deal which I now feel was unfair to me:

I traded my bank of 256K SIMM's (1 MB total) + $448 for 2 1-MB SIMM's.
The normal price for this guy's 2-MB upgrades were $848, and he
"credited" me $400 for my 4 256K's. Was I dumb in doing this, since
I could have gotten 2 1-MB DIP SIMM's (as opposed to the other
surface-mount ones) for $650. 

Also, what is the difference between DIP and surface-mount SIMM's
? Any difference in performance/compatibility?
_____________________________________________________________________

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