求助！！SUN V445服务器无法开机

Question

主板没问题，刚换的主板。前面板指示灯也没有告警灯，有个OK灯在慢闪，就是隔几秒闪一下。串口接上以后，在SC模式输入：poweron -c没有反映，有开机信息和LOG信息，高手帮忙看下了，谢谢了！！

开机信息
ALOM BOOTMON v1.6.1
ALOM Build Release: 003
Reset register: f0000000 EHRS ESRS LLRS SWRS

ALOM POST 1.0

Dual Port Memory Test, PASSED.
TTY External - Internal Loopback Test
TTY External - Internal Loopback Test, PASSED.
TTYC - Internal Loopback Test
TTYC - Internal Loopback Test, PASSED.
TTYD - Internal Loopback Test
TTYD - Internal Loopback Test, PASSED.
Memory Data Lines Test
Memory Data Lines Test, PASSED.
Memory Address Lines Test
  Slide address bits to test open address lines
  Test for shorted address lines
Memory Address Lines Test, PASSED.
Boot Sector FLASH CRC Test
Boot Sector FLASH CRC Test, PASSED.

Return to Boot Monitor for Handshake  
ALOM POST 1.0
   Status = 00007fff
Returned from Boot Monitor and Handshake

Loading the runtime image...
Sun(tm) Advanced Lights Out Manager 1.6.1 (unknown)

Full VxDiag Tests
BASIC TOD TEST
  Read the TOD Clock:        FRI NOV 07 08:11:56 2008
  Wait, 1 - 3 seconds        
SC Alert: Preceding SC reset due to watchdog
  Read the TOD Clock:        FRI NOV 07 08:11:58 2008
BASIC TOD TEST, PASSED
ETHERNET CPU LOOPBACK TEST
  50 BYTE PACKET   - a 0 in field of 1's.  
  50 BYTE PACKET   - a 1 in field of 0's.  
  900 BYTE PACKET  - pseudo-random data.  
ETHERNET CPU LOOPBACK TEST, PASSED
Full VxDiag Tests - PASSED

    Status summary  -  Status = 7FFF
       VxDiag    -          -  PASSED
       POST      -          -  PASSED
       LOOPBACK  -          -  PASSED
       I2C       -          -  PASSED
       EPROM     -          -  PASSED
       FRU PROM  -          -  PASSED
       ETHERNET  -          -  PASSED
       MAIN CRC  -          -  PASSED
       BOOT CRC  -          -  PASSED
       TTYD      -          -  PASSED
       TTYC      -          -  PASSED
       MEMORY    -          -  PASSED
       MPC885    -          -  PASSED

sc>
SC Alert: SC System booted.
Connection being closed due to 60 seconds of inactivity

Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
Use is subject to license terms.

Sun(tm) Advanced Lights Out Manager 1.6.1 (unknown)
Enter #. to return to ALOM.
到这里输入poweron -c
sc> poweron -c
Enter #. to return to ALOM.

LOG信息
sc> showlogs -v
Log entries since NOV 07 08:24:40
----------------------------------
NOV 07 08:24:40 unknown: 00060015: "Preceding SC reset due to watchdog"
NOV 07 08:24:49 unknown: 00060000: "SC Login: User admin Logged on."
NOV 07 08:24:53 unknown: 00060003: "SC System booted."
NOV 07 08:26:34 unknown: 0006002c: "DHCP negotiation failed, perhaps misconfigured or no DHCP server available"
NOV 07 08:28:38 unknown: 0006002c: "DHCP negotiation failed, perhaps misconfigured or no DHCP server available"
NOV 07 08:30:42 unknown: 0006002c: "DHCP negotiation failed, perhaps misconfigured or no DHCP server available"
NOV 07 08:31:29 unknown: 00040001: "SC Request to Power On Host."
NOV 07 08:31:34 unknown: 00040001: "SC Request to Power On Host."
NOV 07 08:31:41 unknown: 00040001: "SC Request to Power On Host."
sc>

环境信息
sc> showenvironment

=============== Environmental Status ===============

--------------------------------------------------------------------------------
System Temperatures (Temperatures in Celsius):
--------------------------------------------------------------------------------
Sensor         Status    Temp LowHard LowSoft LowWarn HighWarn HighSoft HighHard
--------------------------------------------------------------------------------
CPU temperature information cannot be displayed when System power is off.
FIRE I/O temperature information cannot be displayed when System power is off.
MB.IO_T_AMB     OK         22    -20     -10       0      70       75       82
FIOB.T_AMB      OK         22    -20     -10       0      47       52       59
MB.T_AMB        OK         20    -20     -10       0      70       75       82
--------------------------------------
Keyswitch:
--------------------------------------
Keyswitch position: NORMAL
--------------------------------------------------------
System Indicator Status:
--------------------------------------------------------
SYS.LOCATE           SYS.SERVICE          SYS.ACT            
--------------------------------------------------------
OFF                  OFF                  STANDBY BLINK      
--------------------------------------------------------
SYS.PSFAIL           SYS.OVERTEMP         SYS.FANFAIL         
OFF                  OFF                  OFF                 

Disk Status information cannot be displayed when System power is off.
Fan Status information cannot be displayed when System power is off.
Voltage Rail Status information cannot be displayed when System power is off.
--------------------------------------------
Power Supply Indicators:
--------------------------------------------
Supply    Active   Standby  Service
--------------------------------------------
PS0       OFF      ON       OFF   
PS1       OFF      ON       OFF   
PS2       OFF      ON       OFF   
------------------------------------------------------------------------------
Power Supplies:
------------------------------------------------------------------------------
Supply  Status          Underspeed  Overtemp  Overvolt  Undervolt  Overcurrent
------------------------------------------------------------------------------
PS0     OK              OFF         OFF       OFF       OFF        OFF
PS1     OK              OFF         OFF       OFF       OFF        OFF
PS2     OK              OFF         OFF       OFF       OFF        OFF
PS3     NOT PRESENT

高手看看有什么不正常，分析下原因，拜托了！！！

Answer 1

没问题呀，你＃.退出到OK下。boot就可以呀！