Talk about fast... I haven't even received my original posting yet.
Thanks to Ric Anderson (ric@cs.arizona.edu) and Mike Jipping
(jipping@frodo.cs.hope.edu) for responding so quickly.
For those who also missed the answer the first around:
Question:
>> We have some 1MB SIMMs which we want to put in a Sparc 2. They are 1Mx9, 80ns.
>> Will these work in the Sparc 2? In what order should they be added? What
>> jumpers, if any, need to be changed?
>>
Answer:
>There are no jumpers to change. Just make sure to install the same
>size SIMM in groups of 4.
>
>80ns SIMMs *MAY* work. Sun uses graded 80ns. (basically,
>any speed rating is plus or minus some percentage. Sun
>uses 80ns SIMMs that are *NOT SLOWER* than 80ns, because
>of the speed of a Sparc-2. Thus, a random set of 80ns SIMMs
>may work, and then again, they may not).
>
>According to my Sun Sparc2 memory installation book (which
>came with my Sun Sparc2 memory kit):
>
> bank slots
> 0 U0311 U0322
> U0309 U0307
> ----------------------------
> 1 U0312 U0321
> U0310* U0308
> ----------------------------
> 2 U0313 U0320
> U0314* U0315
> ----------------------------
> 3 U0319 U0316
> U0318* U0317
> ----------------------------
>Those slots marked with (*) are *NOT* identified on the board with
>*ANY VISIBLE MARKINGS*.
>
>Bank 0 must always be filled. Then fill the other banks in the
>following order:
> Bank 2
> Bank 1
> Bank 3
>
>If you hold the system with the hard disks next to your tummy,
>then you have the following slot layout
> ^
> |
> |
> S-Bus slots
>
>U0311 U0322
>U0312 U0321
>U0313 U0320
>U0319 U0316
>U0309 U0307
>U0310* U0308
>U0314* U0315
>U0318* U0317
> Hard Drives
> |
> |
> V
>* = Slots not marked on the board as noted above.
>
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