[comp.sys.mac.hardware] IIsi questions: memory config and more

denisb@IRO.UMontreal.CA (Denis Beauchemin) (10/21/90)

Hi there everyone!
 
I am thinking of buying a Mac IIsi within the next few months, but there
are still a few questions that I haven't been able to get answers to.
  
  1) I know that it has 1 meg of memory on the motherboard, and 4 SIMM
  sockets.  If the sockets are all filled with 256K, 1M or 4M SIMMs, we
  get 2, 5 or 17 megs.  But is it necessary to fill the sockets with chips
  of the same capacity?  I would hate to have to buy 4 4M SIMMs the moment
  I want more than 5 megs of memory...  If we can put two of those and two
  1M, we could get 1+2+8 = 11 megs of memory, and that would be plenty for
  me!
   
  2) I think I read in one of the messages in this section that the IIsi
  didn't use the same memory as applications when using the built-in video
  (as the IIci does), but the last issue of MacWorld (the november issue
  with the preview of the new machines) says that the LC has seperate
  video memory but that the IIsi doesn't.  Who's right?  How much
  difference does it make?  (MacWorld also says that there are 2Megs of
  memory soldered on the motherboard and that the new machines need system
  6.06, and we know these are not true...)
    
  3) Do the optional adapters that provide either a Nubus or PDS slot have
  only a socket for the math coprocessor, or is the coprocessor included?
     
Please answer me via EMAIL, I will summarize. Thanks!
      
			Marc Mazuhelli
			mazu@dmi.usherb.ca
						 
 PS: why did Apple drop the SE/30 with only a floppy and why do all new
     machines (except the Classic) come with hard disks?  I have an external
     hard disk that I move between a Mac Plus at home and another at work,
     and I don't want an internal hard disk yet...