Have you checked the PROM versions between the broken system and
known-good system? I'm wondering if the broken system has a buggy PROM
that just can't handle there are no fans?
On Sat, Oct 15, 2022 at 6:39 PM Alexander Schreiber via cctalk
<cctalk(a)classiccmp.org> wrote:
 Hi,
 I've got Sun Fire V100 that I'm pretty sure at some point in time
 actually worked, since I loaded the board with the maximum amount
 of memory supported (2G).
 Now, however, when powering on, the LOM comes up but upon issuing the
 poweron command the main CPU apparently doesn't, all I get is either
  1. print_message: Wrong message ID
  2. or continuous scrolling of what look like blocks of register dumps
 I can reliably get effect 1, but the effect 2 is not easy to reproduce.
 The memory itself seems ok - transplanted it into a known good V100
 board and that booted up to readiness (no OS installed yet), included
 full memory init. Just on general principle (i.e. try the obvious things
 first) I also retried with known good PSU, same result.
 There are no obvious signs of trouble (e.g. bulked up or leaky
 electrolytic capacitors, scorch marks).
 Any ideas what that message wants to tell me?
 Full bootup transcript below, note the fan failure is due to this being
 run as a naked board removed from the case, so the case fans are 'missing'.
 -------------------------- cute here for new monitor --------------------
 LOMlite starting up.
 CPU type: H8/3437S, mode 3
 Ram-test: 2048 bytes OK
 Initialising i2c bus: OK
 Searching for EEPROMs: 50(cfg)
 I2c eeprom @50: OK
 i2c bus speed code 01... OK
 Probing for lm80s: none
 Probing for lm75s: 48
 Initialising lm75 @48: OK
 System functions: PSUs fans breakers rails gpio temps host CLI ebus clock
 Power restored
 LOMlite console
 lom>
 LOM event: +0h0m0s LOM booted
 lom>
 LOM event: +0h0m0s host power on
 �
 LOM event: +0h0m7s Fan 1 FATAL FAULT: failed 0%
 LOM event: +0h0m7s Fault LED 3Hz
 print_message: Wrong message ID
 lom>
 lom>poweroff
 lom>
 LOM event: +0h0m50s host power off
 lom>poweron
 lom>
 LOM event: +0h0m55s host power on
 �
 LOM event: +0h0m56s Fan 1 recovered
 LOM event: +0h1m2s Fan 1 FATAL FAULT: failed 0%
 print_message: Wrong message ID
 lom>
 lom>poweroff
 -------------------------- cute here for new monitor --------------------
 Kind regards,
            Alex.
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