after moving the affected IO board to slot 3 instead of slot 1, I get this:
0,0>Power is adequate, load 4 ps 2
0,0> Check Board Present Test
0,0> Board Present Interrupt Test
0,0>POST Failed
0,0>
0,0> System Board Status
0,0>-----------------------------------------------------------------
0,0> Slot Board Status Board Type Failures
0,0>-----------------------------------------------------------------
0,0> 0 | Normal |+CPU/Memory |
0,0> 1 | Normal | CPU/Memory |
0,0> 2 | Normal |+CPU/Memory |
0,0> 3 | Online/failure | IO Type 1 | FPROM
0,0> 4 | Not installed | |
0,0> 5 | Not installed | |
0,0> 6 | Not installed | |
0,0> 7 | Not installed | |
0,0> 16 | Normal | Clock Board |
0,0>-----------------------------------------------------------------
0,0>
0,0> CPU Module Status
0,0>-----------------------------------------------------------------
0,0> MID OK Cache Speed Version
0,0>-----------------------------------------------------------------
0,0> 0 | y | 8192 | 400 | 00170011.a0000507
0,0> 1 | y | 8192 | 400 | 00170011.a0000507
0,0> 2 | y | 8192 | 400 | 00170011.a0000507
0,0> 4 | y | 8192 | 400 | 00170011.a0000507
0,0> 5 | y | 8192 | 400 | 00170011.a0000507
0,0>-----------------------------------------------------------------
0,0>System Frequency (MHz),fcpu=400, fmod=200, fsys=80, fgen=400
0,0> Populated Memory Bank Status
0,0> bd # Size Address Way Status
0,0> 0 2048 0 4 Normal
0,0> 0 2048 2 4 Normal
0,0> 2 2048 1 4 Normal
0,0> 2 2048 3 4 Normal
0,0>
0,0>
POST COMPLETE
0,0>Entering OBP
ttya initialized
Using POST's System Configuration
Setting up memory
Starting CPU ID 1
Starting CPU ID 2
Starting CPU ID 4
Starting CPU ID 5
Clock board TOD does not match TOD on any IO board.
fhc ac simm-status environment sram flashprom SUNW,UltraSPARC-II SUNW,UltraSPARC
-II
fhc ac simm-status environment sram flashprom SUNW,UltraSPARC-II
fhc ac simm-status environment sram flashprom SUNW,UltraSPARC-II SUNW,UltraSPARC
-II
Probing UPA Slot at 6,0 sbus fhc ac environment flashprom eeprom sbus-speed co
unter-timer
Probing UPA Slot at 7,0 sbus counter-timer
Probing /sbus@6,0 at d,0 SUNW,soc
Probing /sbus@6,0 at 1,0 ba
Probing /sbus@6,0 at 2,0 Nothing there
Probing /sbus@7,0 at 3,0 SUNW,hme SUNW,fas sd st
Probing /sbus@7,0 at 0,0 QLGC,isp invalid command
sd st
8-slot Sun Enterprise 4000/5000, No Keyboard
OpenBoot 3.2.30, 8192 MB memory installed, Serial #8072394.
Copyright 2002 Sun Microsystems, Inc. All rights reserved
Ethernet address 8:0:20:7b:2c:ca, Host ID: 807b2cca.
{0} ok