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marcnielsen

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Server shuts down) unexpectedly with no error messages in log

I have a HP DL385 G5 server insalled with MS Windows server 2003 and virtual server..

The server 2-3 times a week shuts down unexpectedly there is no indication of errors in the Windows Log or HP Managenment log nither in the UPS log.. when I boot the server I am asked in the logon sequence to give a reason for previous shutdown, just lige if the plug has been pulled.

Can anybody help me og give me any ideas to what i going on?
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fokuszg

could be cpu overheating and shutting down.
check temperatures threshold in bios for machine shutdown.
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Hedley Phillips
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It seems like the system has not created any memory dump file, nor is there any log entries about  PSU or overheating..
maybe you have a ghost cleaning lady in the room :)
does this happen when server is under heavy load or random.
It is really strange that under event logs and HP Management logs, there are no indication why it was rebooted.
the shutdown occures totally by random in working hours aswell as in the middle of the night...
http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx

try to download this and see what happens just before it shuts down
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I have tried to test the UPS and bypassed the UPS but it still shuts down, I am now running the event monitoring tool as suggested above and are awaiting the server to shutdown again..
You might also consider a hardware monitor such as hardware sensors monitor (freeware which you have to look at) or SensorView Pro ((~$25 which can alert on threshhold) to watch the temps of the hardware (depends on you system but typically CPU, Northbridge, MOBO, video, HDD, voltage levels, etc)  Might give insight to weather the overheating is the culprit...
Oops...left off the link...tricky submit button.
http://cpu-temperature-monitor.qarchive.org/  
Hi again all, It all ended up with I installed a redundant PSU and there by i got an error in the log showing PSU 1 failed... So thanks to Mr-Madcowz for starting to point me in the direction and NetAdminGuy also for pointing me in the direction of the power issue.. I will share the points between you...