Andrey,
I just realized that I did a prtconv -v (not -pv) before I erased the disk. 
Because I am not knowledgeable with solaris I do not know if the output is 
also helpful.

pls let me know:

jakob

# ./prtdiag -v
System Configuration:  Sun Microsystems  sun4u 4-slot Sun Enterprise 3000
System clock frequency: 82 MHz
Memory size:  512Mb

========================= CPUs =========================

                     Run   Ecache   CPU    CPU
Brd  CPU   Module   MHz     MB    Impl.   Mask
---  ---  -------  -----  ------  ------  ----
  3     6     0      248     4.0   US-II    1.1
  3     7     1      248     4.0   US-II    1.1


========================= Memory =========================

                                               Intrlv.  Intrlv.
Brd   Bank   MB    Status   Condition  Speed   Factor   With
---  -----  ----  -------  ----------  -----  -------  -------
  3     0     256   Active      OK       60ns    2-way     A
  3     1     256   Active      OK       60ns    2-way     A

========================= IO Cards =========================

      Bus   Freq
Brd  Type  MHz   Slot  Name                              Model
---  ----  ----  ----  --------------------------------  ----------------------
  1   SBus   25     0   nf 
SUNW,595-3444,595-3445+
  1   SBus   25     3   SUNW,hme 

  1   SBus   25     3   SUNW,fas/sd 
(block)
  1   SBus   25    13   SUNW,soc                          501-2069 


No failures found in System
===========================

No System Faults found
======================


========================= Environmental Status =========================
Keyswitch position is in Normal Mode
System Power Status: Minimum Available
System LED Status:    GREEN     YELLOW     GREEN
Normal                 ON        OFF       BLINKING


Fans:
-----
Unit   Status
----   ------
Disk    OK
PPS     OK

System Temperatures (Celsius):
------------------------------
Brd   State   Current  Min  Max  Trend
---  -------  -------  ---  ---  -----
  1      OK       44     44   44  stable
  3      OK       42     41   43  stable
CLK     OK       41     41   41  stable


Power Supplies:
---------------
Supply                        Status
---------                     ------
1                                OK
PPS                              OK
     System 3.3v                  OK
     System 5.0v                  OK
     Peripheral 5.0v              OK
     Peripheral 12v               OK
     Auxilary 5.0v                OK
     Peripheral 5.0v precharge    OK
     Peripheral 12v precharge     OK
     System 3.3v precharge        OK
     System 5.0v precharge        OK
AC Power                         OK


========================= HW Revisions =========================

ASIC Revisions:
---------------
Brd  FHC  AC  SBus0  SBus1  PCI0  PCI1  FEPS  Board Type      Attributes
---  ---  --  -----  -----  ----  ----  ----  ----------      ----------
  1    1    5    1      1                 22   Dual-SBus       84MHz Capable
  3    1    5                                  CPU             84MHz Capable

System Board PROM revisions:
----------------------------
Board  1:   FCODE 1.8.26 2000/05/09 19:05   iPOST 3.4.26 2000/05/09 19:11
Board  3:   OBP   3.2.26 2000/05/09 19:07   POST  3.9.26 2000/05/09 19:13