Re: Sparcstation 2 dead - more info

From: James Sweet (jamessweet_at_hotmail.com)
Date: 08/13/05 

Date: Sat, 13 Aug 2005 18:04:16 GMT

"graham salkin" <graham@salkin.co.uk> wrote in message
news:42fddbe5$0$12938$cc9e4d1f@news.dial.pipex.com...
> > Bank are interleaved on the sparcstation 2 ; the bank are arranged like
> > that :
> >
> > (sbus, top)
> > 0 ---- 0 ----
> > 1 ---- 1 ----
> > 2 ---- 2 ----
> > 3 ---- 3 ----
> >
> > 0 ---- 0 ----
> > 1 ---- 1 ----
> > 2 ---- 2 ----
> > 3 ---- 3 ----
> > (disk, bottom)
> >
> > You need to fill the 4 '0' slots with identical simms (30 pins, 8 bits
> > with parity, 1 or 4 MiB, 80 ns or faster IIRC) before filling all the
> > '1' and so on. I may have the bank order wrong ( 0, 2, 1, 3 ?), but '0'
> > is definitely the four at top (or maybe the four at the bottom, but I
> > don't think so).
> >
> >
> > You may want to browse <http://www.sunhelp.org/> for extra informations.
> >
>
> I have just got my sparc II out and had a look, This seems to match what
> is in mine. It has 4mb Simms in the first socket in each group of four
> towards the SBUS. (Ie, 0 in the above diagram).
>
> ---------------------------------------------------------------------
> Normally when i power up without a fb+kb, i get this message
>
> WARNING: Unable to determine keyboard typescreen
> Can't open input device.
> SPARCstation 2, No Keyboard
> ROM Rev. 2.2, 16 MB memory installed, Serial #15387690.
> Ethernet address 8:0:20:ea:cc:2a, Host ID: 55eacc2a.
>
> ---------------------------------------------------------------------
> When i try to power up with memory as you described, i get
>
> WARNING: Unable to determine keyboard type
> *** U0311 ***
> PADDR = 00000000, Expected = a5c33c5a, Observed = ffff3cff
>
> *** U0315 ***
> PADDR = 01000000, Expected = a5c33c5a, Observed = ffff3cff
> A
> PADDR = 02000000, Expected = a5c33c5a, Observed = ffff3cff
> ffafdfdf
> PADDR = 03000000, Expected = a5c33c5a, Observed = ffff3cff
>
> FAILURE: No Trap Taken, Exp Trap Type = 00000009
>
> If you are getting neither out of the serial port, i expect you are
> probably looking at a dead board.

Hmm, I'll try putting the RAM in as you describe and see what happens, the
board isn't *completely* dead as something does come out of the serial port.
I suspect the NVRAM battery is dead as a doornail too. Coming from the PC
world these Unix boxes take some getting used to, just fixed a DEC Multia
that appeared dead but it turned out the battery was dead on that as well as
the fuse supplying 5v to the keyboard/mouse ports was blown so it was going
straight to the serial console but giving a cryptic error about no
interrupts on CPU0.

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