cmkuo@cs.utexas.edu (Chin-Ming Kuo) (03/07/89)
Probably this has been discussed before but back then I was using a Plus and had no urge to get more memory. I can get a real good deal on some 85ns 1M SIMMs for PS/2 (x9), thus I am wondering can these SIMMs be used in a Mac? I know the speed is not a problem, but what about the size of the board, the pin layout? Another question is what to do to make best use of those extra parity chips? Any info will be appreciated. -- Chin-Ming Kuo cmkuo@cs.utexas.edu cs.utexas.edu!cmkuo
swerling@caen.engin.umich.edu (Ace Swerling) (03/07/89)
In article <4966@cs.utexas.edu> cmkuo@cs.utexas.edu (Chin-Ming Kuo) writes: >I can get a real good deal on some 85ns 1M SIMMs for PS/2 (x9), thus I >am wondering can these SIMMs be used in a Mac? I know the speed is not >-- >Chin-Ming Kuo >cmkuo@cs.utexas.edu >cs.utexas.edu!cmkuo From what I've heard, IBM and Mac SIMMs are exactly the same except that the IBM ones have an extra chip on them. What I heard was that you shouldn't go out looking for IBM ones because you have to pay for a extra chip. But, if you can get a good deal, there's no reason why it won't work. -Ace I don't work for the U, so don't yell at them if it doesn't work.
moriarty@tc.fluke.COM (Jeff Meyer) (03/11/89)
In article <41e20b2b.10342@fir.engin.umich.edu> swerling@fir.UUCP (Ace Swerling) writes: >In article <4966@cs.utexas.edu> cmkuo@cs.utexas.edu (Chin-Ming Kuo) writes: >>I can get a real good deal on some 85ns 1M SIMMs for PS/2 (x9), thus I >>am wondering can these SIMMs be used in a Mac? I know the speed is not > >From what I've heard, IBM and Mac SIMMs are exactly the same except that the >IBM ones have an extra chip on them. What I heard was that you shouldn't go >out looking for IBM ones because you have to pay for a extra chip. But, if >you can get a good deal, there's no reason why it won't work. I've had 9-chip SIMMs in both my Mac Plus and my Mac SE/30, and it works just fine. The Mac ignores that extra chip. As to the 85ns speed, that shouldn't be any problem at all. "It's... Ghandi On Ice!" "I'm starving for attention, proclaiming my dissension..." --- Moriarty, aka Jeff Meyer INTERNET: moriarty@tc.fluke.COM Manual UUCP: {uw-beaver, sun, hplsla, thebes, microsoft}!fluke!moriarty CREDO: You gotta be Cruel to be Kind... <*> DISCLAIMER: Do what you want with me, but leave my employers alone! <*>