I recently posted about the memory configuration on a Sun 3/80. Here is
the replies.
Thanks,
Richard Crane
-- Thanks to the following people for replying:Richard France pan@xnet.com
Trip Martin night@acm.rpi.edu
perryh@pluto.rain.com (Perry Hutchison)
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>I need to know the memory bank configuration of a Sun 3/80. I have >it and one of the 16 1MB SIMMs went bad. I am now having trouble >setting it up in a 12MB configuration. The banks aren't labelled well >and I don't have the manual. > I do have a manual :)
>Is there any jumpers? No.
>Which banks do I need to use? ...and are which slots are in which banks? You need to use bank 1 and bank 2. Hopefully you can make out the slot numbers, if not let me know and I'll send an acii drawing. They are as follows: Bank1 U0700, U0701, U0702 and U0703 8 meg configuration.
Bank2 U0803, U0803, U0805 and U0806 12 meg cofiguration. Then the U0900 slots make up the rest of the 16 meg config. Hope this helps. Richard France pan@xnet.com
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In comp.sys.sun.hardware you write:
>I need to know the configuration of the banks and any jumper settings >for the memory on a Sun 3/80. It turns out that I just took a job >and until I come on full-time I am stuck using a 3/80 for an X-terminal. >No biggy, I like it, but we needed to take it apart for a few things >and in doing so, one of the SIMMs got munged (the pins are messed up). >Now I am stuck with 15 1MB SIMMs instead of 16 of them. Therefore, I >need to know the BANKs and the bank locations for a 12MB configuration. >The memory banks aren't realy labelled well and they can't find the >manual. :(
I had to deal with this not to long ago. From what I was able to gather, the banks were set up as follows:
Front of machine 3333333333333333 222222222222222 1111111111111111 000000000000000 3333333333333333 222222222222222 1111111111111111 000000000000000 3333333333333333 222222222222222 1111111111111111 000000000000000 3333333333333333 222222222222222 1111111111111111 000000000000000 Back of machine
I know this pattern works for an 8mb configuration. -- Trip Martin night@acm.rpi.edu
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> I need to know the configuration of the banks and any jumper settings > for the memory on a Sun 3/80 ... > one of the SIMMs got munged (the pins are messed up). > Now I am stuck with 15 1MB SIMMs instead of 16 of them. Therefore, I > need to know the BANKs and the bank locations for a 12MB configuration. > > PLEASE HELP! My alternative is a 3/60... :(
One approach would be to take one of the SIMMs out of the 3/60 to use in the 3/80. Only possible problem would be speed -- the 3/80 might need faster than the 3/60. (3/60 needs 100ns, I don't know about the 3/80.)
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