[SunRescue] Pointer to SS2 FM info pages?
BSD Bob the old greybeard BSD freak
bobkey at weedcon1.cropsci.ncsu.edu
Wed Jul 12 17:34:57 CDT 2000
> > I was needing
> > a pointer to the url for the FEH pages on it. I vaguely
> > remember a .jp
> > site that had some of the board diags that show the ram/jumper/etc
> > locations. Anyone have that url handy? If not, anyone have
> What's wrong with the SHR? :-) I've been doing a lot of work on mine,
> testing out various ram things. Assuming that you're using 9-pin SIMMs,
> start from the group of slots closest to the SBUS slots, and fill straight
> forward. On my machine, you have to fill the bank closest to the SBUS slots
> first (which means 4-SIMMs, but the SHR has a nice ASCII diagram), but after
> that it doesn't seem to matter how the banks are filled. Mixing 3-chip and
> 9-chip SIMMs does not work, nor does mixing "Logic-Chip Parity" and "True
> Parity" 3-chip SIMMs. Yes, I am working on writing all of this down...
I always use 9 chips in sunstuff.....(doesn't everyone?)... (:+}}...
Although I have heard some 3 chip stuff works.
After some hectic webcruising, I finally found the reference page
I was looking for.... alas it is in Japanese or the html is screwed.
Anyway, if I am reading the figure correctly:
http://www.portnet.co.jp/JIS/techical/WS/sun4_75.html
shows the ram cycling by fours in the two rows of chips.
My machine seems to have 0 and 1 filled in each bank, with
3 and 4 open. IFF I am interpreting how the sequence cycles,
I need to install all four 3 bank locations first, which
is a little different from what you seem to be suggesting,
and then add the 4 bank locations second?
Can someone confirm that? I don't want to muck up the ram
positions.
The SS1 (4/60) seems to be entirely different from this (SS2 or 4/75).
Almost confusing, and a good reason to have the actual FEH diagrams.
Also, IFF I am out of 4 meg simms, can the last row of bank 4 simms
be filled in with 1 meg simms, or will it require 4 meg simms?
The IPX, for example can mix and match, but it requires the high
density ram first.
Thanks
Bob
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