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List: sungeeks
Subject: [geeks] Ultra 2: what's U1401?
From: Mouse <mouse () Rodents-Montreal ! ORG>
Date: 2021-08-31 17:30:42
Message-ID: 202108311730.NAA06722 () Stone ! Rodents-Montreal ! ORG
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I've got an Ultra 2 that fails POST. But the error is cryptic enough I
can't tell whether it's anything reasonably fixable. I'm wondering if
anyone can tell me, or point me towards doc that can tell me.
The error I'm seeing is
0>APC Test
0> APC Registers Tests Test
0> APC DVMA Test
0>ERROR: TEST=APC,SUBTEST=APC DVMA ID=16.2
0>Component under test: APC U1401
0> Unexpected event occured
0> Data Access Error from address 00000000.001319c0
0> tl tt tstate tpc tnpc
0> 01 63 00000011.80001603 000001ff.f004bd24 000001ff.f004bd28
0> AFSR 00000000.00100000
0> (CE) Correctable ECC Error
0> SDBH[143:72] Syndrome is c8. CE Error on bit 67
0> SDBH = 00000000.000000c8 SDBL = 00000000.00000060
I found 802-2561-11.pdf, but it's little help. The block diagram on
page C-2 seems to indicate that the APC is purely for audio. C-29 has
another diagram, but all that does is tell me it's not a RAM stick (the
"Correectable ECC Error" part made me hope it was RAM). So far I
haven't found anything in there that actually helps me.
.idprom output is, I suspect, characteristic of a dead battery:
ok .idprom
Format/Type: ff ff Ethernet: ff ff ff ff ff ff Date: ff ff ff ff
Serial: ff ef ff Checksum: ff
ok
It occurs to me that a dead battery could cause POST failure, but if so
it's unexpected to the POST author; it complains about U1401, while the
NVRAM is U2006.
I've tried to reset the MAC, but whenever I try mkp or mkpl it wedges,
needing a hard power-cycle. The machine does have a disk in it, but
when I try to "boot disk -s" I get
Boot device: /sbus/SUNW,fas@e,8800000/sd@0,0 File and args: -s
and it wedges there.
Any thoughts? I'd hate to send this off to the scrapper if it doesn't
deserve it, but I also don't want to beat my head against the wall of
trying to make broken hardware work.
/~\ The ASCII Mouse
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