I wrote:
> I have a 4/330M-8-P36 that is being returned to Sun as part of a system
> upgrade.
>
> Can someone tell me:
>
> Does the 8 in 4/330M-8-P36 mean 8MB of RAM?
>
> What does the P36 mean?
>
> I'm trying to figure out what I can remove from this system before I
> return it.
>
> It has 24MB of RAM installed and if the 8 means 8MB RAM I can keep the
> other 16MB. I'm not sure which SIMMs I can remove though, so I'd also
> like to know the sequence in which the SIMM slots are filled on the CPU
> board.
and the answers follow. Thanks to all who replied, and thanks to John Konc
for FAXing me the 4300 CPU board specs.
From: martin@stavanger.Geco-Prakla.slb.com (Martin Oksnevad)
> Does the 8 in 4/330M-8-P36 mean 8MB of RAM?
Yes. And the M means monochrome screen.
> What does the P36 mean?
A 669mb disk a.k.a as a SUN0669 disk.
If you have 24mb in the system you also have an extra 16mb memory card.
This 16mb memory card have 16 1mb SIMMs. This memory card can only be
used in 330. If you look on the VME slots in the 330 from above they
look like below. You find your 16mb memory card under a lid that covers
2 small memory slots. A 370 and a 390 uses a bigger and diferent 9U VME
memory card.
+-------------------------+------------+
VME bus slot 5 | ########## ########## | ########## | 6U + 3U memory slot
+-------------------------+------------+
VME bus slot 4 | ########## ########## | ########## | 6U + 3U memory slot
+-------------------------+------------+
VME bus slot 3 | ########## ########## ########## | 9U slot
+-------------------------+------------+
VME bus slot 2 | ########## ########## ########## | 9U slot
+-------------------------+------------+
VME bus slot 1 | ########## ########## ########## | 9U CPU slot
+-------------------------+------------+
From: Ray Brownrigg <Ray.Brownrigg@isor.vuw.ac.nz>
> Does the 8 in 4/330M-8-P36 mean 8MB of RAM?
Yes.
> What does the P36 mean?
It means 669 MB disk. Also, my information imples that the 4/330M-8-P36
was configured with a 150MB tape as well as the 669 MB disk (but that
may be a local configuration issue).
> It has 24MB of RAM installed and if the 8 means 8MB RAM I can keep the
> other 16MB. I'm not sure which SIMMs I can remove though, so I'd also
> like to know the sequence in which the SIMM slots are filled on the CPU
> board.
You would remove the 4 SIMMS that have different part numbers (or
otherwise different physical characteristics) from the other 8. You may
also then have to put 4 of the remaining 8 back into where the 4 you
removed came from. As a general rule, when adding high density SIMMS to
a SPARC system, the new SIMMS must go in the "first" slots. You can
also recognise which are the original Sun SIMMS from the presence of a
part number 501-1xxx-xx (if the extra 16MB was 3rd-party).
From: Brian Styles <brian.styles@mrc-bsu.cam.ac.uk>
It _could_ have additional
memory on one or two little expansion cards - you get to them by removing two
captive screws on a little cover plate (horizontal) on the right. Those boards
share the same backplane but don't reach up as far. The original machines
supported only 1MB simms on the cpu board (eight of them). If you've got
4MB simms (the only alternative), one indication would be that J1900 (nearby)
is IN.
If you would like the engineer's info, let me know and I can fax it.
From: konc@fnts07.fnal.gov (John Konc - Fermi National Accelerator Lab. 708-840-3376)
The CPU board has 8 slots. The "0" bank of four is on top. That system comes
with 8Mbytes installed. I don't know what the 36 stands for but I would guess
that it's referring to 360Mbyte disk(s).
-- Todd Pfaff \ Internet: todd@water.eng.mcmaster.ca Dept. of Mechanical Engineering \ Voice: (905) 525-9140 x27351 McMaster University \ FAX: (905) 572-7944 Hamilton, Ontario, CANADA L8S 4L7 \
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