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Does anyone know if a 4M x 8 SIMM will work?  Two of my SIMM's have 8
chips (presumably 4M x 1) and an empty pad where the nineth chip
would go.  The other two have 2 chips (presumably 4M x 4) with an
empty pad where the third (presumably 4M x 1) would go.

I guess the real question is:  "Does the SS1 actually use the parity
bit?"


At 01:02 PM 6/23/00 -0500, James Thompson wrote:
>On Fri, 23 Jun 2000, Steven Grunza wrote:
>
>> I'm going to be pulling eight of my 1Mx9 SIMM's and replacing them
>> with eight 4Mx9 SIMM's soon.  Does it matter where I put the
>> larger SIMM's?  I know I need to keep them within the same bank
>> and I have a diagram of which bank is which around here
>> somewhere....
>> 
>
>I pulled this from the old sun hardware FAQ.  Hope it helps.
>
>MEM LAYOUT: Memory consists of up to sixteen 1M (501-1408) or 4M
>                (501-1625 or 501-1739) x 9 30-pin 80 or 100ns SIMMs,
> in 
>                four banks. The SIMM slots span the middle of the
> board, 
>                in two columns.
>
>                Banks must be filled in the order 0, 2, 1, 3, and
> SIMM 
>                types may not be mixed within banks.
>
>                        Nearest disk connectors
>                           _______  byte bits   _______
>                    U0588 |       |  0   24-31 |       | U0584
>                    U0587 |   0   |  1   16-23 |   1   | U0591
>                    U0586 |       |  2   8-15  |       | U0590
>                    U0585 |_______|  3   0-7   |_______| U0589
>
>                           _______              _______
>                    U0678 |       |  0   24-31 |       | U0682
>                    U0676 |   2   |  1   16-23 |   3   | U0681
>                    U0683 |       |  2   8-15  |       | U0680
>                    U0677 |_______|  3   0-7   |_______| U0679
>
>                        Nearest SBus connectors
>
>
>
>->->->->->->->->->->->->->->->->->->---<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-
><-<-< James Thompson    138 Cardwell Hall  Manhattan, Ks   66506   
>785-532-0561  Kansas State University                         
>Department of Mathematics
>->->->->->->->->->->->->->->->->->->---<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-
><-<-<  
>
>
>

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"Luke, you're going to find that many | Steven Grunza
of the truths we cling to depend      | voice:  (856) 787 - 2759 
greatly on our own point of view."    | fax:    (856) 866 - 2033
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