Old Sun diags questions (4/300 and 3/200)
compoobah at valleyimplants.com
Sat Nov 10 12:19:19 CST 2007
Couple of questions on old Sun machines (well, parts).
On a Sun 4300 CPU board, I'm getting the
"EEPROM Write-Write-Read-Read test
error PA=0xF2000000 VA=0X00FF8000 Exp=0x0000005a Obs=0x00000000
error. Looking on the Web and Usenet seems to show that this has
happened a couple of times, with some reference to possibly being the
NVRAM (although the most comprehensive posing set was in German :().
This seems a bit odd, though - on my other Suns it calls the NVRAM the
NVRAM, so I'm wondering if this is something else. J1900 1-2 is
connected (4MB SIMM option), so it shouldn't be that (or is there
something else needed to be done- not sure if this is a 4/330, or if
there is any board-level reason that it couldn't use 4MB SIMMS).
Another question- so far I have had two Sun-3 era machines (a Carrera
CPU in a CADDstation and a Sun 3/200 CPU) develop "all lights on"
catatonia. Is this a common problem with Sun-3s? I'm wondering if I
should take the time to trace out the 3/200 board (preferably with
hints on where to look), give it away, or junk it (I have a working
3/110 system, so I won't be destitute of Sun-3s).
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