Server Reboot Issue

Rajat Sehgal
Rajat Sehgal used Ask the Experts™
Hello Experts,

We have Dell R610 servers in our network, last few days i am getting unexpected server reboot issue, i try to find issue but unable to find out.
please help me out i am attaching 2 servers log files.

OS - Windows Server 2008 R2 Stranded SP1
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Fethi ABASSIWindows system administrator

could you please check in Event Time Viewer the boot time
systeminfo | find "System Boot Time"
and try to find this time if you found something strange
link how to debugging dump file:

You have 2 different dump files with 2 different reasons for now. More dump files are appreciated.
But for now, when it's different every time, it's usually not a driver issue, but more in the direction of PSU/mobo/mem
If possible do a memtest for a whole day.
If that's not possible due to work load, try half the memory first (physically remove half the DIMMs). If same happens, replace the half with the other half. If still happening, you already ruled out the memory as a problem causer.
After that, if possible, replace PSU. The last step is of  course the most difficult part, replace mobo.
Top Expert 2014

Check the server event log on the system board via iDRAC or OMSA, that will identify most hardware errors.
Principal Support Engineer
Those dump files show two different stopcodes, but they appear to be related. The likely culprits, according to WinDbg, are srv.sys and srvnet.sys, both of which are built-in Windows drivers.

Is this server up to date in terms of Windows updates? I suspect it's not, because both of those files are dated Nov 20, 2010. I know the OS is 2008 R2, but I'm almost certain there are more recent versions of srv.sys and srvnet.sys available via updates.

Installing all available updates would be the first thing I'd do. Well, check that - I'd back everything up first, then install all updates.
Rajat SehgalFounder Enhance Technology


Thanks to all for you valuable suggestion.

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