RX5670 cannot bootup while power on

[ooorichard]

There are two power supply on this RX5670 .The power light is on ,but cant bootup when pushing the power button .Using "PC on" doesnt work .After MP self-testing ,the console shows the following content about log :

00:00:10
Alert level 5: Critical
Keywork : Type-02 020104 131332
Voltage sensor crossed lower non-recoverable threshold
Logged by : BMC ; Sensor: Voltage
Data 1: lower Non-recoverable -going low
Data 2: TRG Reading : 0x13 TRG Threshold ;0x6E
0x200000000A020E60 6E135401C2020300

I cant find out the critical reason and need help .Pls show me how to judge the problem by the log. And where can I find the service manual about RX series computers' troubleshooting .CE Kevin
Mail:yi_tan@hpsupport.com.cn
Thanks a lot & best regards !

[ooorichard]

Well,buddies .I've found the solution .After I replaced the base board of rx5670 ,the problem was resolved.
When bootup the system first time after replacing base board ,we must update the new information for hardware like L class .
MP>sysmode service (to change the mode to service ,then u can change model string etc.)
MP>syset mfg(to change this option to HP)
MP>syset prodname(to change this option to rx5670)
MP>sysset prodnum A6837A(changed prodct number)
MP>sysset serial ussr49370dk(changed the serial number,found it on tab/label)
MP>sysset uuid(found on the front panel of machine)
Mp>sysset (to check the whole information is ok)