CPU utilization of SQL server 2008r2 is high.

Hi All,

I'm facing a critical issue in one of production servers.sqlserv.exc is utilizing more CPU(90% to 100%)

Windows version:windows server 2007 standard with SP1
processor:Intel(R) Xeon(R) CPU X5675 @3.07GHz 2.93GHz
RAM:4.00GB
System Type:32 bit operating system.

SQL server version & edition:SQL server 2008R2 standard edition 32 bit with sp1.

Please let me know what are the step i need to take to resolve the issue and i would like to know which process is eating more resources.

Regards,
Mahi

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Maheshwar Reddy