Windows 2008 R2 Server is locking up and cannot be restarted

Hi,

We have a Windows 2008 R2 server which has just recently started locking up seemingly randomly each day. It started happening a few days ago after the server has been up and running for 260 days straight. What happens is this:

We have two partitions on the server running under the same RAID 1 mirror. The "Data" partition will not be accessible if I go into Computer and double click the partition, Explorer will sit there and spin until Explorer displays "Not Responding." At this point, no one can connect to the network shares and if I try to restart the server, it gets stuck at "Please wait for the System Event Notification Service" indefinitely and someone has to hold the power button to turn that server off. Once it comes back up it works for a few hours and the same thing happens. There is nothing in Event Viewer that helps point me in the right direction.

The server is a Dell PowerEdge with Open Manage installed. Open Manage does not show any problems.

Any ideas on what's going on and how to fix it?
LVL 2
OAC TechnologyProfessional NerdsAsked:
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_Commented:
My first thought is to check it over for dust buildup in the Intake/Exhaust/PSU grills and fans.
Also the CPU(s) Heatsink(s) and fan(s).
Sound like it might be over-heating.
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OAC TechnologyProfessional NerdsAuthor Commented:
The temperature probes in Open Manage state the temperatures are normal and safe.
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_Commented:
hmmmm... so we do this the hard way.

Any new hardware, programs, or updates, installed just before this issue started?

Also  memory or an addin card(s) might need to be reseated.

Run what ever memory and hard drive diags you have.

If you need some, Memtest is good for testing ram
http://www.memtest.org

For the hard drives, check with Dell, or the drive makers site.
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Mike RoeCommented:
can you post a a crash dump file her so we can look at it
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OAC TechnologyProfessional NerdsAuthor Commented:
Errors just started showing up in event viewer now "Command timeout on PD 01" so it looks like the 2nd HD in that array is going bad. Dell is going to replace it for us.
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OAC TechnologyProfessional NerdsAuthor Commented:
Found solution
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Windows Server 2008

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